1997
NATIONAL RPA FOREST DATA BASE
DATA DICTIONARY
AND
CONTRIBUTOR'S GUIDE
MAY 1996
CONTENTS
Introduction and
Overview........................................... 3
Figure 1 - Building the 1997 National RPA
Data Base .............. 5
Data Structure Documentation ..................................... 6
Table A - Plot/stand/stratum variables
& formats (Record 1) ....... 8
Table B - Per acre volume variables &
formats (Record 2) ....... 9
Table C - County summary variables &
formats (Record 3) ....... 10
Record 1 - Plot/stand/stratum variable
definitions ................
11
Record 2 - Volume variable definitions
............................
38
Record 3 - County summary variable
definitions .................... 42
Input Standards for the 1997 RPA Data Base
Data submitted in
Eastwide/Westwide
Standard Format ...............
45
Data submitted from other sources in
Summary Format ...............
45
Establishing Unique Record IDs Within a
Data Base.................. 46
Updating Inventories for the 1997 RPA Data
Base
General Guidelines
................................................ 47
Notes on Completing the Update
Documentation Form ................. 48
Table D - Inventory Update Documentation
Form ..................... 49
Supplemental Data Requirements
Volume by Species & DBH Class- Data
Structure Documentation ........ 50
Table E - Eastern Softwood Growing
Stock/Sawtimber Volume Format .. 52
Table F - Eastern Hardwood Growing
Stock/Sawtimber Volume Format .. 53
Table G - Western Softwood & Hardwood
Growing Stock/Sawtimber
Volume Format
......................................... 55
Volume by Species & DBH Class- Data
Element Definitions ............ 57
Introduction
....................................................... 58
Table H.- Area of Land, Water, and NFS
Lands by Region & State...... 59
Interpreting Census and NFS area table
............................. 60
Additional Information for NFS Contributors
.................... 62
Table I.- National Forest System Reserved
Lands by Land Class....... 62
Table J.- National Forest Area & Volume
Reporting Capability........ 63
NFS Terms
.......................................................... 64
Table K.- Biomass Conversion Factors for Eastwide DB Values ... 65
1 9 9 7
N A T I O N A L R P A F O R E S T D A T A B A S E
The
Forest and Rangeland Renewable Resources Planning Act of 1974 as amended by the
National Forest Management Act of 1976, is intended to help guide Forest
Service planning and activities on National Forest land. These statutes direct that an assessment of
all renewable resources be made every 10 years to describe the condition and
potential of America's 1.6 billion acres of forest land and rangeland. They call for an appraisal of present and
future demands for forest and rangeland products, and identification of
opportunities for increasing the yield on the nations forests and rangelands.
Beginning
with the 1989 RPA Assessment, the Assessment Management Group established a
permanent national data base that contained plot, stand, or stratum level data
from the 9 Regions and 6 Experiment Stations across the nation. Each of these 15 individual data bases had a
common data structure (with identical codes and data formats) and was stored in
a central location. The resource statistics for the 1989 Assessment were dated
1987.
In
recent years, as environmental issues have become more contentious, it has
become apparent that more detailed information on a shorter time interval would
be useful. While the full reports to Congress will remain on the 10-year
schedule, the Forest Service now publishes an update of the Assessment
statistics every 5 years. A statistical
"Update" was published for 1992 as an interim between the mandated
1987 and 1997 statistics. The focus of
this document is the data submission protocols for the Congressionally mandated
1997 resource statistics for the 1999 RPA Assessment.
Forest
Service strategic inventories provide a wealth of detailed information about
forest vegetation through data collected utilizing varying sampling
strategies. In recent years efforts
have focused on providing a more consistent and uniform set of 'core' data that
will be collected at all 'grid' sample locations to support regional and
national assessments. These data have
common definitions, collection protocols, and processing procedures. The 1997 data base will be the first
national forest resource data base with detailed georeference and vegetation
level features. Because of the time
required to implement standard data, an average of 10 years for complete U.S.
coverage of a new variable or procedure, the 1997 data base will take a
two-tiered approach. The first tier
will be data input at the georeferenced sample plot level with detailed tree
records. This data will be available
for about 75 percent of the forest land in the U.S. in 1997. The second tier will contain summary data
referenced at the county level for the entire U.S. For some areas where new
inventories are incomplete, this will be the only standard data available. (figure 1)
The
following pages contain details on the exact structure of the RPA national data
base. Data to populate the national
data base will be provided in three documented formats- Eastwide standard,
Westwide standard, and Summary. The
Eastwide standard documentation is found in General Technical Report NC-151
(Hansen, et al, 1992), Westwide documentation is found in General Technical
Report INT-317 (Woudenberg and Farrenkopf, 1995), and RPA summary documentation
is found in this report. Eastwide and
Westwide documents are also available on DG.
Each submitted data file must adhere to the proper format prior to being
transferred to the RPA Data Center in Starkville, MS.
The
contents of this data dictionary are very similar to those used in 1992. Notable changes from 1992 include:
1) redefinition of the unique identifier for
each plot as the concatenation
of Region or Station source (RSID),
State(STATE), County(COUNTY)/Plot
Number(RECNUM), and Condition
Class(CONDITION). All data in the 1997
data
base will be county referenced with minor
exceptions where data disclosure
issues preclude this delineation.
2) inclusion of biomass data in the volume
record
3) addition of a county summary record for
all counties in the US which will be
completed by the data center (this record
will be completed by the RPA Data
Center staff)
4) field units that have data in either
Eastwide or Westwide format will
submit these formats in lieu of RPA
summary format. Green biomass data
currently reported in the Eastwide format
will be converted to dry values
using generic conversion factors provided
in Table H at the end of this
doucment (derived from Smith, 1991).
5) declaration on area and volume records as
to whether data are observed or
modeled
6) method of providing data for 2-inch DBH
tables; automatic for RPA submissions
in Eastwide and Westwide standard formats,
special format for non-standard
submissions.
Contact people for questions on the RPA Data
Base:
|
W. Brad Smith, RPA Data Manager USDA Forest Service Resource Valuation and Use Research P. O. Box 96090 Washington, DC 20090-6090 Tel: (202) 205-0841 Email: bsmith12@fs.fed.us
|
J ohn Vissage, RPA Database ManagerSouthern Research Station Forest Inventory and Analysis 201 Lincoln Green Starkville, MS 39759 Tel: (662) 338-3104 Email: jvissage@fs.fed.us
|
FIGURE
1.-- BUILDING THE NATIONAL 1997 RPA DATA BASE
Documentation
for the structure of the RPA summary data base covered by this document has
been organized into two major sections:
Element Requirements-Format Specification and Element Definition-Code
Specification. The variables or pieces
of information that will be entered into the data base are called
'Elements'. Each element has a FORTRAN
format, a definition, and possibly a list of codes associated with it. There are three Record Types within the data
base; each has its own format structure and documentation.
Element
Requirements-Format Specification. This
section of the documentation describes the required structure of the data file
that will be loaded into the RPA national data base. It includes the element name and number, an indication of whether
the element is required based on ownership and land use, its FORTRAN format,
columns occupied by the element, and measurement units. All of this information is displayed in
three tables, one for each Record Type.
The data file will be entirely numeric, with non-coded elements being
rounded to the nearest integer (i.e. no decimals are entered).
Not ALL
data elements are required on every record.
Required elements are determined by Land Cover Class (LANDCC), Reserved
Class (RESERCLASS), Site Productivity Class (SPCLASS), and Owner Group
(OWNGROUP). Tables A and B list the
required elements for different categories; all other elements are optional but
SHOULD BE ENTERED by the contributor if the data are available. DATA FOR TABLE C WILL BE COMPLETED BY STAFF
AT THE NATIONAL DATA CENTER.
All
data files transferred to the RPA data base must be in the appropriate format
before they can be loaded at the RPA Data Center. ALL UNITS CAPABLE OF SUBMITTING DATA IN EASTWIDE OR WESTWIDE
STANDARD FORMAT SHOULD DO SO IN LIEU OF SUBMITTING THE RPA NATIONAL SUMMARY
FORMAT DESCRIBED IN THIS MANUAL.
If you
are submitting summary format data, PLEASE READ THESE TABLES THOROUGHLY BEFORE
SETTING UP THE RPA DATA FILES. The
2-inch DBH tables shown at the end of this manual are ONLY required for areas
NOT submitted in Eastwide or Westwide standard format (i.e. any data submitted
in summary format).
Element
Definition-Code Specification. This
section provides an explanation of each element, describing what the name
means, the type of information that should be entered, diameter limits and log
rule requirements for volume estimates, extended definitions and codes that are
legal for the element, and other details that aid in clarification. The section is divided into three parts, one
for each Record Type. Please note the
restrictions and minimum requirements outlined for some of the elements; they
will be crucial for an accurate summary in the RPA assessment. The exact codes specified must be adhered to
by all data providers, or the files cannot be analyzed for the assessment. Many of the codes have been taken directly
from Forest Service Handbooks; some have been modified for this data base. Please use the codes within this document
for all elements in the RPA data base.
IMPORTANT
NOTE: This summary structure will be
automatically produced for all data submitted in Eastwide or Westwide standard
formats. A later document will describe
the national tree level data base developed from Eastwide/Westwide
submissions. Contributors submitting
data in these formats should follow guidelines set forth in Hansen et. al
(1992) and Woudenberg and Farrenkopf (1995).
REFERENCES
Hansen,
Mark H.; Frieswyk, Thomas; Glover, Joseph F.; Kelly, John F. 1992. Eastwide
Forest Inventory Data Base: User's Manual. USDA Forest Service. North Central
Forest Experiment Station, General Technical Report NC-151. 48p.
Smith,
W. Brad. 1991. Assessing Removals for North Central Forest
Inventories. USDA Forest Service. North
Central Forest Experiment Station, Research Paper NC-299. 48p.
Woudenberg,
Sharon W.; Farrenkopf, Thomas O. 1995. Westwide Forest Inventory Data Base:
User's Manual. USDA Forest Service. Intermountain Forest Experiment Station,
General Technical Report INT-317. 67p.
R P A F O R E S T D A T
A B A S E S T R U C T U R E
TABLE A.
DATA ELEMENTS FOR RECORD TYPE 1 (AREA AND STAND VARIABLES)
SHOWING REQUIREMENTS,
FORMAT, COLUMNS, AND UNITS.
+===============
===================================== ====== ====== ======+
| | OTHER
NON- | FOR- | |UNITS |
| ELEMENT
| TIMBER- RESERVED FOREST
FOREST | TRAN | COL- | (C= |
| NAME
| LAND FOREST LAND LAND
|FORMAT| UMNS |CODED)|
|===============
===================================== ====== ====== ======|
|
|
| 1.
RECTYPE x x x x I1 1 C |
| 2.
RSID x x x x I2
2-3 C |
| 3.
STATE x x x x I2
4-5 C |
| 4.
COUNTY x x x x I3
6-8 C |
| 5.
RECNUM x x x x I10
9-18 C |
| 6.
CONDITION x x x x
I1 19 C
|
| 7.
INVSOURCE x x x
I1 20 C
|
| 8.
TSOURCE x I1 21
C |
| 9.
SRCDATE x x x
I2 22-24 Year
|
|10.
SUBREGION x x x x I1
25 C |
|11.
ADMINFOR * * * * I2
26-27 C |
|12.
LANDCC x x x x I2
28-29 C |
|13.
OWNGROUP x x x x I1 30
C |
|14.
OWNER x x x x I2
31-32 C |
|15.
RESERCLASS x x x x I1
33 C |
|16.
AEF x x x x I7 34-40 Acres |
|17.
VEF x I7 41-47
Acres |
|18.
FORTYPE x x x
I3 48-50 C
|
|19.
LOCALTYPE I3 51-53
C |
|20.
STANDORIGIN ** I1 54
C |
|21.
SSCLASS x I1 55
C |
|22.
STDIAM I2 56-57
Inches|
|23.
AGECLASS x I3 58-60
Years |
|24.
SPCLASS x x x
I1 61 C
|
|25.
STOCKPC x I2 62-63
C |
|26.
TREATOPP ** I2 64-65 C |
|27.
LOCALINFO1 I1 66
C |
|28.
LOCALINFO2 I2 67-68
C |
|29.
LOCALINFO3
I3 69-71
C |
|30.
LOCALINFO4 I5 72-76
C |
|31.
LOCALINFO5 I6 77-82
C |
|32.
LOCALINFO6 I3 83-85
C |
|33.
CONTINID x I1 86
C |
+==========================================================================+
* Only required for National Forest System
lands.
**
Optional in the West (see page 13 for list of States).
a--An
"x" indicates the element is required for the specified land
class.
All optional elements should be entered if
they are available to the
contributing unit.
R P A F O R E S T D A T
A B A S E S T R U C T U R E
TABLE B. DATA ELEMENTS FOR RECORD TYPE 2 (STAND VOLUME VARIABLES)
SHOWING REQUIREMENTS,
FORMAT, COLUMNS, AND UNITS.
+======================== ================
========= ========= =============+
|
| REQUIREMENTS | | | |
| | ALL OWNERSHIPS | FORTRAN | |
UNITS |
|
ELEMENT NAME |
-TIMBERLAND-a | FORMAT | COLUMNS | (C=CODED) |
|======================== ================
========= ========= =============|
|
|
| 1. RECTYPE x
I1 1 C |
| 2. RSID x
I2 2-3 C |
| 3. STATE x I2
4-5 C |
| 4. COUNTY x
I3 6-8 C |
| 5. RECNUM x
I4 9-12 C |
| 6. CONDITION x
I1 13 C |
| 7. BDFTVOL-SOFT-INT x I6
14-19 Board ft/ac |
| 8. BDFTVOL-HARD-INT x I5
20-24 Board ft/ac |
| 9. BDFTVOL-SOFT-LOCAL I6 25-30
Board ft/ac |
|10. BDFTVOL-HARD-LOCAL I5 31-35
Board ft/ac |
|11. LOCAL RULE TYPE I1 36 C |
|12. CUBICVOL-SOFT x
I5 37-41 Cubic ft/ac |
|13. CUBICVOL-HARD x
I5 42-46 Cubic ft/ac |
|14. LIVECULL-SOFT x
I5 47-51 Cubic ft/ac |
|15. LIVECULL-HARD x I4 52-55 Cubic ft/ac |
|16. SOUNDEAD-SOFT x
I5 56-60 Cubic ft/ac |
|17. SOUNDEAD-HARD x
I4 61-64 Cubic ft/ac |
|18. MORTALITY-SOFT x I4
65-68 Cubic ft/ac |
|19. MORTALITY-HARD x
I4 69-72 Cubic ft/ac |
|20. NETGROWTH-SOFT x
I5 73-77 Cubic ft/ac |
|21. NETGROWTH-HARD x
I5 78-82 Cubic ft/ac |
|22. BIOBOLE-SOFT x
I6 83-88 Dry lbs/ac |
|23. BIOBOLE-HARD x
I6 89-94 Dry lbs/ac |
|24. BIOSAPS-SOFT x
I5 95-99 Dry lbs/ac |
|25. BIOSAPS-HARD x
I5 100-104 Dry lbs/ac |
+===========================================================================+
a--An "x" indicates the element is
required for the specified combination of
area attributes. Volume elements are required for all ownerships (OWNGROUP=1,
2, 3, or 4) but only on Timberland (LANDCC=20
& RESERCLASS=1 & SPCLASS<7).
Volume elements for other Forest Land classes
(i.e., Woodland and Reserved
Forest Land) and optional elements for
Timberland should be entered if they are
available.
R P A
D R A F T F O R E S T D A T A
B A S E S T R U C T U R E
TABLE C. DATA ELEMENTS FOR RECORD TYPE 3 (COUNTY
VARIABLES) SHOWING FORMAT, COLUMNS,
AND UNITS.
This record will be completed by RPA
Data Center
for all US counties.
+==================================================+
| |
| | |
| |
FOR- | | UNITS
|
|
ELEMENT | TRAN
| COL- |
(C= |
|
NAME | FORMAT |
UMNS | CODED) |
|==================== =========
========= =========|
| |
|
1. RECTYPE I1 1 C |
| 2. STATE I2
2-3 C |
| 3. COUNTY I3
4-6 C |
| 4. CENDATE I2
7-8 Year |
| 5. MINLAT I7
9-15 Sec |
| 6. MINLON I7
16-22 Sec |
| 7. MAXLAT I7
23-29 Sec |
| 8. MAXLON I7
30-36 Sec |
| 9. AVGLAT I7
37-43 Sec |
|10. AVGLON I7
44-50 Sec |
|11. CENLAND I8
51-58 Acres |
|12. CENWATER I8
59-66 Acres |
|13. CENPOP I8
67-74 Num
|
|14. URCONT80 I1
75 C |
|15. URCONT90 I1
76 C |
|16. ECOCLASS I1
77 C |
|17. FORESTAC I8
78-85 Acres |
|18. TIMBERAC
I8 86-93 Acres |
|19. RESERVAC I8
94-101 Acres |
|20. NFSLAND I8
102-109 Acres |
|21. NFSRESV I8
110-117 Acres |
|22. CTYNAM A20 118-137 A |
+==================================================+
R P A F O R E S T D A T
A B A S E S T R U C T U R E
ELEMENT DEFINITIONS-CODE
SPECIFICATIONS
+=============+===============================================================+
| ELEMENT
| |
| NAME
| BRIEF DEFINITION AND
CODES |
+=============+===============================================================+
1.
RECTYPE RECORD TYPE. RECORD TYPE 1 CONTAINS AREA AND STAND
VARIABLES.
(coded) RECORD TYPE 2 CONTAINS STAND VOLUME VARIABLES. WHEN BOTH
RECORD TYPES ARE ENTERED FOR
ONE STAND OR PLOT THEY CONSTITUTE
ONE 'LOGICAL RECORD' FOR
THAT PLOT, AND BOTH LINES OF DATA
MUST RECEIVE THE SAME
RSID/STATE/COUNTY/RECNUM/CONDITION,
TO SHOW THAT THEY ARE ASSOCIATED WITH THE SAME STAND OR
PLOT.
CODE
1 RECORD TYPE #1 (AREA AND STAND
VARIABLES)
2.
RSID REGION OR STATION
IDENTIFICATION NUMBER. THIS CODED VALUE
(Coded) UNIQUELY IDENTIFIES
EACH OF THE 16 LOCATIONS CONTRIBUTING DATA
TO THE RPA DATA BASE. THIS ID CAN BE USED AS A REFERENCE
KEY TO DELETE AN ENTIRE SET
OF DATA FROM THE AGGREGATED
DATA BASE, TO UPDATE A
PARTICULAR RSID DATA BASE, TO
RETRIEVE A DATA BASE, OR TO
PRODUCE A SUMMARY REPORT FOR
INDIVIDUAL REGIONS OR
STATIONS.
CODES
1 REGION 1
2 REGION 2
3 REGION 3
4 REGION 4
5 REGION 5
6 REGION 6
8 REGION 8
9 REGION 9
10 REGION 10
22 INTERMOUNTAIN EXPERIMENT STATION
23 NORTH CENTRAL EXPERIMENT STATION
24 NORTHEAST EXPERIMENT STATION
26 PACIFIC NORTHWEST EXPERIMENT STATION
27 ALASKA -- PACIFIC NORTHWEST STATION
29 SOUTHERN RESEARCH STATION- SE AREA
30 SOUTHERN RESEARCH STATION- SC AREA
R P A F O R E S T D A T
A B A S E S T R U C T U R E
ELEMENT DEFINITIONS-CODE
SPECIFICATIONS
RECORD TYPE
1
(Cont.)
+=============+===============================================================+
| ELEMENT
| |
| NAME
| BRIEF DEFINITION AND
CODES |
+=============+===============================================================+
3.
STATE THE STATE IN WHICH THE
INVENTORIED LAND IS LOCATED(by region).
(Coded)
CODES East
01 ALABAMA
05 ARKANSAS
09
CONNECTICUT
10 DELAWARE
12 FLORIDA
13 GEORGIA
17 ILLINOIS
18 INDIANA
19 IOWA
20 KANSAS
21 KENTUCKY
22 LOUISIANA
23 MAINE
24 MARYLAND
25 MASSACHUSETTS
26 MICHIGAN
27 MINNESOTA
28 MISSISSIPPI
29 MISSOURI
31 NEBRASKA
33 NEW HAMPSHIRE
34 NEW JERSEY
36 NEW YORK
37 NORTH CAROLINA
38 NORTH DAKOTA
39 OHIO
40 OKLAHOMA
42 PENNSYLVANIA
44 RHODE ISLAND
45 SOUTH CAROLINA
46 SOUTH DAKOTA
47 TENNESSEE
48 TEXAS
50 VERMONT
51 VIRGINIA
54 WEST VIRGINIA
55 WISCONSIN
72 PUERTO RICO
R P A F O R E S T D A T
A B A S E S T R U C T U R E
ELEMENT DEFINITIONS-CODE
SPECIFICATIONS
RECORD TYPE
1
(Cont.)
+=============+===============================================================+
| ELEMENT
| |
| NAME
| BRIEF DEFINITION AND
CODES |
+=============+===============================================================+
3.
STATE
(cont.) West
02 ALASKA
04 ARIZONA
06 CALIFORNIA
08 COLORADO
15 HAWAII
16 IDAHO
30 MONTANA
32 NEVADA
35 NEW MEXICO
41 OREGON
49 UTAH
53 WASHINGTON
56 WYOMING
4. COUNTY FIP COUNTY IDENTIFICATION NUMBER.
(Coded) **NOTE** STANDARD 3-DIGIT CODE USED BY BUREAU OF THE CENSUS
5.
RECNUM RECORD
IDENTIFICATION NUMBER.
(Coded) **NOTE** THIS NUMBER MUST BE UNIQUE WITHIN ANY GIVEN
RSID/STATE/COUNTY COMBINATION AND BE A MAXIMUM OF 10
DIGITS
LONG. IF YOU NORMALLY USE STATE AND COUNTY CODE AS
PART OF
THE PLOT ID, SIMPLY STRIP
THEM OFF AND USE THE REMAINDER OF
THE CODE FOR RECNUM. IF A RECORD IS CONTINUED ON RECORD
TYPE 2, THE SAME SEQUENCE OF
RSID/STATE/COUNTY/RECNUM MUST
BE PRESENT ON BOTH RECORD
TYPE 1 AND 2 OF THIS LOGICAL RECORD.
REMEMBER: IF YOUR INVENTORY
USED MAPPED PLOTS, THE VARIABLE
'CONDITION' SHOULD ALSO BE
FILLED IN.
R P A F O R E S T D A T
A B A S E S T R U C T U R E
ELEMENT DEFINITIONS-CODE
SPECIFICATIONS
RECORD TYPE 1
(Cont.)
+=============+===============================================================+
| ELEMENT
| |
| NAME
| BRIEF DEFINITION AND
CODES |
+=============+===============================================================+
6.
CONDITION CONDITION CLASS
CODE.
(Coded) IDENTIFIES A UNIQUE CONDITION (LAND USE, FOREST TYPE, STAND
SIZE, STAND DENSITY, AND
OPTIONAL OWNERSHIP) WITHIN A GIVEN
FIELD PLOT (RECNUM) USING
THE MAPPED PLOT DESIGN.
NOTE: AREA (AEF) AND VOLUME
(VEF) EXPANDERS MUST BE THOSE
ASSOCIATED WITH THE CONDITION AND NOT THE ENTIRE PLOT.
CODES
0 -ZERO- MAPPED PLOT DESIGN NOT USED
1 FIRST UNIQUE CONDITION OF MAPPED
DESIGN PLOT
2-9 ADDITIONAL UNIQUE CONDITIONS WITHIN A PLOT (RECNUM)
7.
INVSOURCE SOURCE OF THE
INVENTORY DATA. A CODED VALUE
IDENTIFYING THE
(Coded) SOURCE OF THE DATA ON THE RECORD. SOURCES INCLUDE VARIATIONS
OF ORIGINAL INVENTORY DATA
AND INVENTORY DATA UPDATED BY
BOOK-KEEPING OR PROJECTION.
CODES
1 PLOT LEVEL - ORIGINAL EW OR WW STD FORMAT
2 PLOT LEVEL - UPDATED EW OR WW STD FORMAT
3 PLOT LEVEL - ORIGINAL INVENTORY DATA
4 PLOT LEVEL - UPDATED INVENTORY DATA
5 STAND LEVEL - ORIGINAL INVENTORY DATA
6 STAND LEVEL - UPDATED INVENTORY DATA
7 STRATUM LEVEL - ORIGINAL INVENTORY DATA
8 STRATUM LEVEL - UPDATED INVENTORY DATA
8.
TSOURCE IDENTIFIES WHETHER
DATA SOURCE FOR VOLUME RECORD (TREES,
(Coded) STANDS, ETC) ARE BASED ON OBSERVED OR MODELED TREE DBH.
CODES
1 OBSERVED
2 MODELED
9.
SRCDATE SOURCE DATE. THE YEAR OF THE FIELD INVENTORY FOR DATA ON
THE RECORD. THIS MAY BE 1) THE YEAR OF THE ORIGINAL
FIELD
INVENTORY OR 2) THE YEAR OF
THE INVENTORY FROM THE SECONDARY
DATA SOURCE. DATA CONTRIBUTORS SHOULD SUBMIT THEIR MOST
IF AVAILABLE, OR THEY MAY CHOOSE TO SUBMIT DATA FROM THE
MOST RECENT INVENTORY WHICH
THEY HAVE UPDATED TO 1997.
PLEASE REFER TO THE SECTION
'UPDATING INVENTORIES FOR THE
1997 RPA DATA BASE'. REMEMBER: FOR UPDATED INVENTORIES
RECORD THE SOURCE DATA NOT
THE MODELED DATE FOR THE DATA.
R P A F O R E S T D A T
A B A S E S T R U C T U R E
ELEMENT DEFINITIONS-CODE
SPECIFICATIONS
RECORD TYPE 1
(Cont.)
+=============+===============================================================+
| ELEMENT
| |
| NAME
| BRIEF DEFINITION AND
CODES |
+=============+===============================================================+
10. SUBREGION
THE SUBREGION CODE HAS BEEN DEVELOPED TO INDICATE GEOGRAPHIC
(Coded) LOCATION (EAST OR
WEST) WITHIN FOUR STATES. INDIVIDUAL
NATIONAL FORESTS NEED NOT BE
SPLIT IF THEY STRADDLE THE CREST
OF THE OREGON-WASHINGTON
CASCADES; THE CODE CAN BE ASSIGNED
BASED UPON LOCATION OF MOST
OF THE LAND ON THE FOREST.
CODES
1 ALL STATES OTHER THAN OREGON,
WASHINGTON,
SOUTH DAKOTA, OR
ALASKA
2 EASTERN SIDE OF THE STATE FOR OREGON,
WASHINGTON, AND
SOUTH DAKOTA; COASTAL ALASKA
3 WESTERN SIDE OF THE STATE FOR OREGON,
WASHINGTON, AND
SOUTH DAKOTA; INTERIOR ALASKA
11. ADMINFOR
ADMINISTRATIVE FOREST. THE
ADMINISTRATIVE FOREST WITHIN A
(Coded) REGION WHERE THE INVENTORIED LAND IS LOCATED. REFER TO THE
FOLLOWING RPA CODE LIST.
ENTER FOR NATIONAL FOREST LANDS ONLY.
(NOTE: THIS IS ADMINISTRATIVE
NOT PROCLAIMED FOREST)
CODES
Region 1
2 BEAVERHEAD
3 BITTERROOT
4 IDAHO PANHANDLE
5 CLEARWATER
8
CUSTER
R P A F O R E S T D A T
A B A S E S T R U C T U R E
ELEMENT DEFINITIONS-CODE
SPECIFICATIONS
RECORD TYPE
1
(Cont.)
+=============+===============================================================+
| ELEMENT
| |
| NAME
| BRIEF DEFINITION AND
CODES |
+=============+===============================================================+
11. ADMINFOR Region 1 (Cont.)
9 DEERLODGE
10 FLATHEAD
11 GALLATIN
12 HELENA
14 KOOTENAI
15 LEWIS and CLARK
16 LOLO
17 NEZPERCE
20 CEDAR RIVER NGL (NATIONAL GRASSLAND)
21
LITTLE MISSOURI NGL
22 SHEYENNE NGL
24 GRAND RIVER NGL
99 OTHER NFS AREAS
Region 2
2 BIGHORN
3
BLACK HILLS
4 GM-UNC-GUN
6 MEDICINE BOW
7 NEBRASKA
9 RIO GRANDE
10 ARAPAHO-ROOSEVELT
11 ROUTT
12 PIKE and SAN ISABEL
13 SAN JUAN
14 SHOSHONE
15 WHITE RIVER
17 CIMARRON NGL
18 COMMANCHE NGL
19 PAWNEE NGL
20 OGLALA NGL
21 BUFFALO GAP NGL
22 FORT PIERRE NGL
23 THUNDER BASIN NGL
99
OTHER NFS AREAS
R P A F O R E S T D A T
A B A S E S T R U C T U R E
ELEMENT DEFINITIONS-CODE
SPECIFICATIONS
RECORD TYPE
1
(Cont.)
+=============+===============================================================+
| ELEMENT
| |
| NAME
| BRIEF DEFINITION AND
CODES |
+=============+===============================================================+
11. ADMINFOR Region 3
1 APACHE-SITGREAVES
2 CARSON
3 CIBOLA
4 COCONINO
5 CORONADO
6 GILA
7 KAIBAB
8 LINCOLN
9 PRESCOTT
10 SANTA FE
12 TONTO
99 OTHER NFS AREAS
Region 4
1 ASHLEY
2 BOISE
3 BRIDGER-TETON
5 CARIBOU
6 CHALLIS
7 DIXIE
8 FISHLAKE
9 HUMBOLDT
10 MANTI-LASAL
12 PAYETTE
13 SALMON
14 SAWTOOTH
15 TARGHEE
17 TOIYABE
18 UINTA
19 WASATCH
20 DESERT RANGE EXPERIMENT STN
99 OTHER NFS AREAS
Region 5
1 ANGELES
2 CLEVELAND
3 ELDORADO
R P A F O R E S T D A T
A B A S E S T R U C T U R E
ELEMENT DEFINITIONS-CODE
SPECIFICATIONS
RECORD TYPE
1
(Cont.)
+=============+===============================================================+
| ELEMENT
| |
| NAME
| BRIEF DEFINITION AND
CODES |
+=============+===============================================================+
11. ADMINFOR Region 5 (Cont.)
4 INYO
5 KLAMATH
6 LASSEN
7 LOS PADRES
8 MENDOCINO
9 MODOC
10 SIX RIVERS
11 PLUMAS
12 SAN BERNARDINO
13 SEQUOIA
14 SHASTA-TRINITY
15 SIERRA
16 STANISLAUS
17 TAHOE
19 LAKE TAHOE BASIN
99 OTHER NFS AREAS
Region 6
1 DESCHUTES
2 FREMONT
3 GIFFORD PINCHOT
4 MALHEUR
5 MT. BAKER-SNOQUALMIE
6 MT. HOOD
7 OCHOCO
8 OKANOGAN
9 OLYMPIC
10 ROGUE RIVER
11 SISKIYOU
12 SIUSLAW
14 UMATILLA
15 UMPQUA
16 WALLOWA-WHITMAN
17 WENATCHEE
18 WILLAMETTE
20 WINEMA
21 COLVILLE
99 OTHER NFS AREAS
R P A F O R E S T D A T A
B A S E S T R U C T U R E
ELEMENT DEFINITIONS-CODE
SPECIFICATIONS
RECORD TYPE
1
(Cont.)
+=============+===============================================================+
| ELEMENT
| |
| NAME
| BRIEF DEFINITION AND
CODES |
+=============+===============================================================+
11. ADMINFOR Region 8
1 NFS in ALABAMA
2 DANIEL BOONE
3 CHATTAHOOCHEE-OCONEE
4 CHEROKEE
5
NFS in FLORIDA
6 KISATCHIE
7 NFS in MISSISSIPPI
8 GEORGE WASHINGTON
9 QUACHITA
10 OZARK and ST. FRANCIS
11 NFS in NORTH CAROLINA
12 FRANCIS MARION-SUMTER
13 NFS in TEXAS
14 JEFFERSON
16 CARIBBEAN
99 OTHER NFS
AREAS
Region 9
2 CHEQUAMEGON
3 CHIPPEWA
4 HURON MANISTEE
5 MARK TWAIN
6 NICOLET
7 OTTAWA
8 SHAWNEE
9 SUPERIOR
10 HIAWATHA
11 HOOSIER
18 WAYNE
19 ALLEGHENY
20 GREEN MOUNTAIN
21 MONONGAHELA
22 WHITE MOUNTAIN
99 OTHER NFS AREAS
Region 10
2 TONGASS-STIKINE AREA
3 TONGASS-CHATHAM AREA
R P A F O R E S T D A T
A B A S E S T R U C T U R E
ELEMENT DEFINITIONS-CODE
SPECIFICATIONS
RECORD TYPE
1
(Cont.)
+=============+===============================================================+
| ELEMENT
| |
| NAME
| BRIEF DEFINITION AND
CODES |
+=============+===============================================================+
11. ADMINFOR Region 10 (Cont.)
4 CHUGACH
5 TONGASS-KETCHIKAN AREA
99 OTHER NFS AREAS
12. LANDCC
LAND COVER CLASS. THIS CODED
VALUE INDICATES THE BASIC
(Coded) BIOLOGICAL POTENTIAL OF THE LAND.
CODES
20 FOREST LAND: LAND AT LEAST 10% STOCKED WITH FOREST
TREES OF ANY
SIZE, OR FORMERLY FORESTED LANDS NOT
CURRENTLY
DEVELOPED FOR NON-FOREST USES. THESE
LANDS MUST BE A
MINIMUM OF 1 ACRE IN AREA.
ROADSIDE,
STREAMSIDE AND SHELTERBELT STRIPS OF
TIMBER MUST HAVE
A CROWN WIDTH OF AT LEAST 120 FEET
TO QUALIFY AS
FOREST LAND, AND UNIMPROVED ROADS,
TRAILS, STREAMS, AND CLEARINGS WITHIN
FOREST AREAS
ARE CLASSIFIED AS
FOREST LAND IF THEY ARE LESS THAN
120 FEET
WIDE.
60 NON-FOREST LAND: LAND THAT HAS NEVER SUPPORTED
FORESTS OR LAND
FORMERLY FORESTED BUT NOW DEVELOPED
FOR OTHER
USES. IF LOCATED WITHIN FOREST AREAS,
UNIMPROVED ROADS
AND NONFORESTED STRIPS MUST BE
MORE THAN 120
FEET WIDE, AND CLEARINGS, ETC. MUST
BE MORE THAN 1
ACRE TO QUALIFY AS NON-FOREST LAND.
NON-FOREST LAND
INCLUDES AREAS USED FOR CROPS,
PASTURE, RESIDENTIAL, COMMERCIAL,
INDUSTRIAL, CITY
PARKS, IMPROVED
ROADS AND ADJOINING CLEARINGS.
R P A F O R E S T D A T
A B A S E S T R U C T U R E
ELEMENT DEFINITIONS-CODE
SPECIFICATIONS
RECORD TYPE
1
(Cont.)
+=============+===============================================================+
| ELEMENT
| |
| NAME
| BRIEF DEFINITION AND
CODES |
+=============+===============================================================+
12. LANDCC
(Cont.)
91 CENSUS WATER:
STREAMS, SLOUGHS, ESTUARIES, AND
CANALS MORE THAN
200 FEET WIDE; AND LAKES,
RESERVOIRS, AND
PONDS MORE THAN 4.5 ACRES IN
SIZE.
EXCEPT AK, OR, AND WA (1980 DEFINITION):
STREAMS, SLOUGHS,
ESTUARIES, AND CANALS
MORE THAN 1/8 OF
A STATUTE MILE (660 FEET)
IN WIDTH, and
LAKES, RESERVOIRS, AND PONDS
MORE THAN 40
ACRES IN SIZE.
(NOTE: ONLY
STATIONS SHOULD REPORT CENSUS WATER,
NOT REGIONS.)
92 NON-CENSUS WATER: STREAMS, SLOUGHS,
ESTUARIES,
AND CANALS
BETWEEN 120 FEET AND 200 FEET WIDE;
AND LAKES,
RESERVOIRS, AND PONDS 1 TO 4.5 ACRES
IN SIZE.
EXCEPT AK, OR, AND WA (1980 DEFINITION):
STREAMS, SLOUGHS,
ESTUARIES, AND CANALS MORE
THAN 120 FEET AND
LESS THAN 1/8 OF A MILE
(660 FEET) IN
WIDTH, OR LAKES, RESERVOIRS, AND
PONDS 1 to 40
ACRES IN SIZE.
R P A F O R E S T D A T
A B A S E S T R U C T U R E
ELEMENT DEFINITIONS-CODE
SPECIFICATIONS
RECORD TYPE
1
(Cont.)
+=============+===============================================================+
| ELEMENT
| |
| NAME
| BRIEF DEFINITION AND
CODES |
+=============+===============================================================+
13.
OWNGROUP OWNER GROUP. LEGAL OWNER GROUP OF THE INVENTORIED LAND.
(Coded)
CODES
1
NATIONAL FOREST LAND: FEDERAL
LANDS DESIGNATED BY
EXECUTIVE ORDER
OR STATUTE AS NATIONAL FORESTS OR
PURCHASE UNITS,
AND OTHER LANDS UNDER THE
ADMINISTRATION OF THE FOREST SERVICE
INCLUDING
EXPERIMENTAL
AREAS AND BANKHEAD-JONES TITLE III
LANDS.
2 OTHER PUBLIC LAND: PUBLICLY-OWNED LANDS OTHER THAN
NATIONAL FOREST LANDS.
3 FOREST INDUSTRY LAND: LANDS OWNED BY COMPANIES OR
INDIVIDUALS
OPERATING WOOD-USING PLANTS. (INCLUDES
INDIAN LANDS IF
THEY QUALIFY AS INDUSTRY.)
4 NONINDUSTRIAL PRIVATE LAND: ALL PRIVATE LANDS
EXCEPT THOSE
OWNED BY FOREST INDUSTRY. (INCLUDES
NONINDUSTRIAL
INDIAN LANDS.)
9 UNKNOWN OWNERSHIP: OWNER GROUP NOT RECORDED. THIS
CODE IS LEGAL FOR
NONFOREST LAND AND WATER COVER
CLASSES ONLY.
14. OWNER THE DETAILED LEGAL OWNERSHIP OF THE INVENTORIED LAND. USE
(Coded) THE FOLLOWING DEFAULT CODES IF A STATUS IS UNKNOWN: IF LEASE
STATUS IS UNKNOWN, USE THE
OWNER CODES FOR UNLEASED
(60,70). IF CORPORATE STATUS IS UNKNOWN, USE THE
OWNER
CODES FOR INDIVIDUAL
(70,90). OWNERSHIP CODE 99, UNKNOWN
SHOULD ONLY BE USED FOR
NONFOREST LANDS WHERE OWNERSHIP IS NOT
RECORDED. OWNERSHIP 11 IS REQUIRED FOR ALL NFS LANDS,
FOREST
AND NONFOREST.
R P A F O R E S T D A T
A B A S E S T R U C T U R E
ELEMENT DEFINITIONS-CODE
SPECIFICATIONS
RECORD TYPE
1
(Cont.)
+=============+===============================================================+
| ELEMENT
| |
| NAME
| BRIEF DEFINITION AND
CODES |
+=============+===============================================================+
14. OWNER
DETAILED OWNER CLASS
(Cont.)
CODES
11 NATIONAL FOREST
12 BUREAU OF LAND MANAGEMENT (BLM): FEDERAL LANDS
ADMINISTERED BY
THE BUREAU OF LAND MANAGEMENT, U.S.
DEPARTMENT OF THE
INTERIOR.
14 OTHER FEDERAL AGENCIES: FEDERAL LANDS OTHER THAN
LANDS
ADMINISTERED BY THE FOREST SERVICE OR THE
BLM.
15 STATE:
LANDS OWNED BY STATE GOVERNMENTS, OR LANDS
LEASED BY STATE
GOVERNMENTAL UNITS FOR MORE THAN 50
YEARS.
16 COUNTY AND MUNICIPAL: LANDS OWNED BY COUNTY OR
MUNICIPAL
AGENCIES, OR LANDS LEASED BY THESE
AGENCIES FOR MORE
THAN 50 YEARS.
20 FOREST INDUSTRY: LANDS OWNED BY COMPANIES, TRIBES,
OR INDIVIDUALS
OPERATING WOOD-USING PLANTS.
60 OTHER PRIVATE - CORPORATE: LANDS OWNED BY PRIVATE
CORPORATIONS
OTHER THAN FOREST INDUSTRY.
70 OTHER PRIVATE - INDIVIDUAL: LANDS OWNED BY
INDIVIDUALS,
INCLUDING FARMERS.
R P A F O R E S T D A T
A B A S E S T R U C T U R E
ELEMENT DEFINITIONS-CODE
SPECIFICATIONS
RECORD TYPE
1
(Cont.)
+=============+===============================================================+
| ELEMENT
| |
| NAME
| BRIEF DEFINITION AND
CODES |
+=============+===============================================================+
14. OWNER 80 OTHER
PRIVATE-CORPORATE--LEASED: LANDS OWNED BY
(Cont.) CORPORATIONS BUT LEASED TO FOREST INDUSTRY.
90 OTHER PRIVATE-INDIVIDUAL--LEASED: LANDS
OWNED BY
INDIVIDUALS BUT LEASED TO FOREST INDUSTRY.
99 UNKNOWN: OWNERSHIP NOT RECORDED OR UNAVAILABLE.
THIS CODE IS
LEGAL FOR NONFOREST LAND AND WATER.
15.
RESERCLASS RESERVED CLASS. THE STATUS OF FOREST LAND FOR THE PRODUCTION
(Coded) AND HARVEST OF FOREST TREES FOR COMMERCIAL PRODUCTS.
CODES
1 UNRESERVED FOREST LAND: ALL PRIVATE FOREST LANDS;
AND PUBLIC FOREST LANDS WHERE THE HARVEST OF TREES
IS NOT PROHIBITED
BY STATUTE OR ADMINISTRATIVE
REGULATION.
2 NON-NFS RESERVED FOREST LAND-
LANDS THAT HAVE STATUTORY OR ADMINISTRATIVE
RESTRICTIONS
PROHIBITING THE HARVEST OF TREES.
EXAMPLES INCLUDE
FOREST LAND WITHIN NATIONAL PARKS,
MONUMENTS,
NATIONAL WILDERNESS PRESERVATION SYSTEM
AREAS OUTSIDE THE
NATIONAL FORESTS, STATE PARKS,
ETC.
R P A F O R E S T D A T
A B A S E S T R U C T U R E
ELEMENT DEFINITIONS-CODE SPECIFICATIONS
RECORD TYPE
1
(Cont.)
+=============+===============================================================+
| ELEMENT
| |
| NAME
| BRIEF DEFINITION AND
CODES |
+=============+===============================================================+
15.
RESERCLASS
(Cont.)
THE FOLLOWING
CODES ARE FOR NATIONAL FOREST SYSTEM
LANDS ONLY:
3 NFS RESERVED FOREST LAND-
NON-WILDERNESS:
NATIONAL FOREST
SYSTEM FOREST LANDS THAT HAVE
RESTRICTIONS
PROHIBITING THE HARVEST OF TREES.
EXAMPLES INCLUDE
PRIMATIVE AREAS, SCENIC RESEARCH
AREAS, SCENIC
AREAS, WILD & SCENIC RIVERS,
RECREATION AREAS, GAME REFUGES,
MONUMENT AREAS,
AND HISTORIC
AREAS. IN GENERAL, THIS CODE
INCLUDES ALL
RESERVED OR WITHDRAWN NFS FOREST LANDS
NOT WITHIN THE NATIONAL WILDERNESS
PRESERVATION
SYSTEM.
4 NFS RESERVED FOREST LAND- WILDERNESS:
PUBLIC FOREST
LANDS THAT HAVE
STATUTORY OR ADMINISTRATIVE
RESTRICTIONS PROHIBITING THE HARVEST OF
TREES.
EXAMPLES INCLUDE
LAND WITHIN THE NATIONAL
WILDERNESS
PRESERVATION SYSTEM OR STATE DESIGNATED
WILDERNESS AREAS.
16.
AEF AREA EXPANSION
FACTOR. THE NUMBER OF ACRES (AS OF THE
SOURCE
DATE) THIS RECORD REPRESENTS
FOR ESTIMATES OF AREA VARIABLES
SUCH AS OWNERSHIP AND LAND
COVER CLASS. THE SUM OF ALL AREA
EXPANSION FACTORS WITHIN A
REGIONAL DATA BASE EQUALS THE TOTAL
AREA (IN ACRES) ADMINISTERED
BY A FOREST SERVICE REGION, OR
THE TOTAL AREA, EXCLUDING
NATIONAL FOREST LANDS, IN AN FIA
REGION. THE
SUM OF ALL AEF's IN ALL DATA BASES IS THE TOTAL
LAND AND WATER AREA OF THE
UNITED STATES (BASED ON 1990
CENSUS).
R P A F O R E S T D A T
A B A S E S T R U C T U R E
ELEMENT DEFINITIONS-CODE SPECIFICATIONS
RECORD TYPE
1
(Cont.)
+=============+===============================================================+
| ELEMENT
| |
| NAME
| BRIEF DEFINITION AND
CODES |
+=============+===============================================================+
17.
VEF VOLUME EXPANSION
FACTOR. THE NUMBER OF ACRES (AS OF THE
SOURCE DATE) THAT THE RECORD
REPRESENTS FOR VOLUME
ESTIMATION. VOLUME WILL BE 'EXPANDED' OVER THE
APPROPRIATE
ACREAGE BY MULTIPLYING VEF x
EACH VOLUME/ACRE ELEMENT ON
RECORD TYPE 2. TOTAL VOLUME OR TOTAL GROWTH WILL BE
CALCULATED
BY SUMMING THE EXPANDED
VOLUME ESTIMATES FROM ALL RECORDS IN
AN INVENTORY UNIT, STATE, OR
REGION.
IN MANY CASES THE VEF WILL BE THE SAME AS THE AEF.
THE VEF MAY BE A MODIFIED
ACREAGE USED FOR VOLUME ESTIMATION
ONLY, DEPENDING ON THE
METHOD(S) USED WITHIN A REGION OR
STATION. WHEN VEF IS REQUIRED FOR VOLUME MEASUREMENTS
ENTERED
ON RECORD TYPE 2 AND
AEF=VEF, THEY BOTH MUST BE ENTERED WITH
IDENTICAL VALUES.
18. FORTYPE
FOREST TYPE GROUP. THE GENERAL
FOREST COVER TYPE OF THE
(Coded) INVENTORIED STAND, BASED ON THE TREE SPECIES FORMING A
PLURALITY OF THE STOCKING
WITHIN THE STAND. THIS IS A THREE
DIGIT CODED ELEMENT, WHERE
THE FIRST DIGIT (1 or 2) REPRESENTS
EITHER EASTERN OR WESTERN TYPE
GROUPS. THE NEXT 2 DIGITS HAVE
BEEN TAKEN FROM A STANDARD
SET OF FOREST TYPE CODES. FOREST
TYPE GROUP IS A REQUIRED
ENTRY FOR ALL FOREST LAND RECORDS;
THE NEXT ELEMENT (LOCALTYPE)
ALLOWS FOR ENTRY OF THE SPECIFIC
LOCAL TYPE CODE.
CODES
*------ EASTERN FOREST TYPES
------*
100 WHITE - RED - JACK PINE
110 SPRUCE - FIR
120 LONGLEAF -
SLASH PINE
130 LOBLOLLY - SHORTLEAF PINE
140 OAK - PINE
150 OAK - HICKORY
160 OAK - GUM - CYPRESS
170 ELM - ASH - COTTONWOOD
180 MAPLE - BEECH - BIRCH
190 ASPEN - BIRCH
198 OTHER FOREST TYPES
199 NONSTOCKED
R P A F O R E S T D A T
A B A S E S T R U C T U R E
ELEMENT DEFINITIONS-CODE
SPECIFICATIONS
RECORD TYPE
1
(Cont.)
+=============+===============================================================+
| ELEMENT
| |
| NAME
| BRIEF DEFINITION AND
CODES |
+=============+===============================================================+
18. FORTYPE
*----- WESTERN FOREST TYPES -----*
(Cont.)
200 DOUGLAS-FIR
210 PONDEROSA PINE
220 WESTERN WHITE PINE
230 FIR - SPRUCE
240 HEMLOCK - SITKA SPRUCE
250 LARCH
260 LODGEPOLE PINE
270 REDWOOD
280 OTHER HARDWOODS
290 UNCLASSIFIED AND OTHER FOREST TYPES
293 PINYON - JUNIPER
297 CHAPARRAL
299 NONSTOCKED
19.
LOCALTYPE LOCAL FOREST TYPE. THE LOCAL FOREST COVER TYPE OF THE
(Coded) INVENTORIED STAND, BASED ON THE TREE SPECIES FORMING A
PLURALITY OF THE STOCKING
WITHIN THE STAND. THIS IS A THREE
DIGIT CODED ELEMENT, WHERE
THE FIRST DIGIT (1 or 2) REPRESENTS
EITHER EASTERN OR WESTERN
TYPE GROUPS. THE NEXT 2 DIGITS HAVE
BEEN TAKEN FROM THE STANDARD
SET OF LOCAL FOREST TYPE CODES IN
THE FOREST SERVICE
HANDBOOK. THIS ELEMENT HAS BEEN
PROVIDED
TO ALLOW FURTHER DETAIL OF
FOREST TYPES FOR LOCAL USE OF THE
DATA BASE. ONLY FORTYPE WILL BE USED TO GENERATE THE
RPA
TABLES FOR THE ASSESSMENT
REPORT. IN CASES WHERE SPECIES
OVERLAP GEOGRAPHICAL
BOUNDARIES, SUCH AS TRANSCONTINENTAL
SPECIES IN ALASKA, THE
APPROPRIATE EASTERN LOCAL FOREST TYPE
CODE SHOULD BE ENTERED
HERE. THE FOREST TYPE GROUP CODE,
FORTYPE ABOVE, SHOULD BE
FROM THE WESTERN CODE LIST AS
OUTLINED BELOW:
Forest Type Local Type Code FORTYPE Group to
in Alaska Assignment be assigned
--------------------------------------------------------
Black Spruce
112 290 OTHER FOREST
TYPES
White Spruce 116 230 FIR-SPRUCE
--------------------------------------------------------
R P A F O R E S T D A T A B A S E
S T R U C T U R E
ELEMENT DEFINITIONS-CODE
SPECIFICATIONS
RECORD TYPE
1
(Cont.)
+=============+===============================================================+
| ELEMENT
| |
| NAME
| BRIEF DEFINITION AND
CODES |
+=============+===============================================================+
19.
LOCALTYPE THE OTHER TRANSCONTINENTAL
SPECIES HAVE TYPE CODES ALREADY
(Cont.) ASSIGNED IN THE WESTERN GROUP.
IF NO LOCAL FOREST TYPE CODE
IS APPROPRIATE, USE THE
APPROPRIATE TYPE GROUP CODE.
CODES
*------ EASTERN FOREST TYPES
------*
100 WHITE-RED-JACK PINE TYPE GROUP
101 Jack pine
102 Red pine
103 White pine
104 White pine - hemlock
105 Hemlock
211 Ponderosa pine
110 SPRUCE-FIR TYPE GROUP
111 Balsam fir
112 Black
spruce
113 Red spruce - Balsam fir
114 Northern white-cedar
115 Tamarack
116 White spruce
120 LONGLEAF-SLASH PINE TYPE GROUP
121 Longleaf pine
122 Slash pine
130 LOBLOLLY-SHORTLEAF PINE TYPE GROUP
131 Loblolly pine
132 Shortleaf pine
133 Virginia pine
134 Sand pine
135 Eastern redcedar
136 Pond pine
137 Spruce pine
138 Pitch pine
139 Table-mountain pine
R P A F O R E S T D A T
A B A S E S T R U C T U R E
ELEMENT DEFINITIONS-CODE
SPECIFICATIONS
RECORD TYPE
1
(Cont.)
+=============+===============================================================+
| ELEMENT
| |
| NAME
| BRIEF DEFINITION AND
CODES |
+=============+===============================================================+
19.
LOCALTYPE 140 OAK-PINE TYPE GROUP
(Cont.) 141 White pine
- northern red oak - white ash
142 Eastern redcedar - hardwood
143 Longleaf pine - scrub oak
144 Shortleaf pine - oak
145 Virginia pine - southern red oak
146 Loblolly pine - hardwood
147 Slash pine - hardwood
149 Other oak - pine
150 OAK-HICKORY TYPE GROUP
151 Post oak, black oak or bear oak
152 Chestnut oak
153 White oak - red oak - hickory
154 White oak
155 Northern red oak
156 Yellow poplar - white oak - northern
red oak
157 Southern scrub oak
158 Sweetgum - yellow poplar
159 Mixed hardwoods
160 OAK-GUM-CYPRESS TYPE GROUP
161 Swamp chestnut oak - cherrybark oak
162
Sweetgum - Nuttall oak - willow oak
163 Sugarberry - American elm - green ash
165 Overcup oak - water hickory
166 Atlantic white cedar
167 Baldcypress - water tupelo
168 Sweetbay - swamp tupelo - red maple
169 Palm-mangrove-other tropical
170 ELM-ASH-COTTONWOOD TYPE GROUP
171 Black ash - American elm - Red maple
172 River birch - sycamore
173 Cottonwood
174 Willow
175 Sycamore - pecan - American elm
176 Red maple-lowland
179 Mixed lowland hardwoods
R P A F O R E S T D A T
A B A S E S T R U C T U R E
ELEMENT DEFINITIONS-CODE
SPECIFICATIONS
RECORD TYPE
1
(Cont.)
+=============+===============================================================+
| ELEMENT
| |
| NAME
| BRIEF DEFINITION AND
CODES |
+=============+===============================================================+
19.
LOCALTYPE 180 MAPLE-BEECH-BIRCH TYPE GROUP
(Cont.) 181 Sugar
maple - beech - yellow birch
182 Black
cherry
183 Black walnut
184 Red maple-northern hardwoods
187 Red maple-upland
188 Northern hardwood-reverting field
189 Mixed
northern hardwoods
190 ASPEN-BIRCH TYPE GROUP
191 Aspen
192 Paper birch
194 Balsam poplar
198 OTHER
FOREST TYPES
199 NONSTOCKED
*----- WESTERN FOREST TYPES
-----*
200 DOUGLAS-FIR TYPE GROUP
201 Douglas-fir
202 Douglas-fir -
Western hemlock
203 Port-Orford-cedar - Douglas-fir
210 PONDEROSA PINE TYPE GROUP
211 Ponderosa pine
212 Jeffrey pine
213
Ponderosa pine - sugar pine - fir
220 WESTERN WHITE PINE TYPE GROUP
221 Western white pine
230 FIR-SPRUCE TYPE GROUP
116 White spruce (in Alaska)
231 White fir and grand fir
232 Red fir
234 Pacific silver fir - hemlock
235 Engelmann spruce
236 Engelmann spruce - subalpine fir
R P A F O R E S T D A T
A B A S E S T R U C T U R E
ELEMENT DEFINITIONS-CODE
SPECIFICATIONS
RECORD TYPE
1
(Cont.)
+=============+===============================================================+
| ELEMENT
| |
| NAME
| BRIEF DEFINITION AND
CODES |
+=============+===============================================================+
19.
LOCALTYPE 240 HEMLOCK-SITKA SPRUCE TYPE GROUP
(Cont.) 241 Western
redcedar
242 Sitka spruce
247 Mountain hemlock - subalpine fir
248 Western hemlock
250 LARCH TYPE GROUP
255 Larch - Douglas-fir
256 Grand fir - larch - Douglas-fir
257 Ponderosa
pine - larch - Douglas-fir
260 LODGEPOLE PINE TYPE GROUP
261 Lodgepole pine
270 REDWOOD TYPE GROUP
271 Redwood
280 OTHER
HARDWOODS TYPE GROUP
281 Red alder
282 Poplar - birch
283 Aspen
284 California black oak
285 Cottonwood - willow
286 Canyon live oak
287 Oak - Madrone
288 Other oaks
289 Ohia
192 Paper birch
290 OTHER FOREST TYPES (includes Arizona
cypress-
western juniper)
112 Black Spruce (in Alaska)
291 Coulter pine
292 Digger pine - oak
294 Knobcone pine
295 Bristlecone pine
296 Whitebark pine
298 Limber pine
293 PINYON-JUNIPER
R P A F O R E S T D A T
A B A S E S T R U C T U R E
ELEMENT DEFINITIONS-CODE
SPECIFICATIONS
RECORD TYPE
1
(Cont.)
+=============+===============================================================+
| ELEMENT
| |
| NAME
| BRIEF DEFINITION AND
CODES |
+=============+===============================================================+
19. LOCALTYPE 297 CHAPARRAL
(Cont.) 299 NONSTOCKED
20. STANDORIGIN STAND ORIGIN. IDENTIFIES
WHETHER THE STAND IS PLANTED OR OF
(Coded) NATURAL ORIGIN.
REQUIRED FOR TIMBERLAND ONLY.
NOTE: OPTIONAL IN THE WEST
(SEE LIST ON PAGE 13).
CODES
1 NATURAL STANDS
2 PLANTED STANDS
21.
SSCLASS STAND SIZE
CLASS. A CODED VALUE INDICATING THE
STAND SIZE
(Coded) CLASS OF THE INVENTORIED STAND. CLASSIFIES FOREST LAND BASED
ON THE PREDOMINANT STOCKING
BY SIZE OF ALL LIVE TREES
PRESENT. POLETIMBER TREES ARE BETWEEN 5-8.9" DBH
FOR
SOFTWOODS, AND BETWEEN 5-10.9" DBH FOR
HARDWOODS. SAWTIMBER
TREES ARE >= 9" DBH
FOR SOFTWOODS, AND >= 11" DBH FOR
HARDWOODS. [BASED ON
DIAMETER-ROOT-COLLAR (DRC) FOR WOODLAND
AREAS.]
CODES
1 NON-STOCKED STANDS: STANDS LESS THAN 10% STOCKED
WITH LIVE TREES.
2 SEEDLING-SAPLING STANDS: STANDS AT
LEAST 10%
STOCKED WITH LIVE
TREES, OF WHICH MORE THAN HALF
CONSISTS OF
SAPLINGS AND/OR SEEDLINGS.
3 POLETIMBER STANDS: STANDS AT LEAST 10% STOCKED
WITH LIVE TREES,
OF WHICH MORE THAN HALF MUST BE >=
5" DBH, AND
POLETIMBER STOCKING MUST EXCEED THAT OF
SAWTIMBER
STOCKING.
4 SAWTIMBER STANDS: STANDS AT LEAST 10% STOCKED WITH
LIVE TREES, OF WHICH MORE THAN HALF MUST BE >=
5"
DBH, AND
SAWTIMBER STOCKING MUST BE EQUAL TO OR
EXCEED POLETIMBER
STOCKING.
R P A F O R E S T D A T
A B A S E S T R U C T U R E
ELEMENT DEFINITIONS-CODE
SPECIFICATIONS
RECORD TYPE
1
(Cont.)
+=============+===============================================================+
| ELEMENT
| |
| NAME
| BRIEF DEFINITION AND
CODES |
+=============+===============================================================+
22.
STDIAM MEAN STAND
DIAMETER. A VALUE, GIVEN TO THE NEAREST
INCH, OF
THE MEAN STAND DIAMETER OF
THE MAIN STAND (WHICH IS COMPOSED
OF ALL TREES >= 5"
DBH). THE PREFERRED METHOD OF
ESTIMATION
IS BY CALCULATING THE
QUADRATIC MEAN DIAMETER, BUT OTHER
APPROACHES ARE ACCEPTABLE.
23.
AGECLASS AGE CLASS. THE AGE (IN YEARS) OF THE MAIN STAND OR
MANAGEABLE
COMPONENT OF THE STAND. THE RECORDED AGE IS THE AGE AT THE
MIDPOINT OF THE AGE CLASS
INTERVAL. THE WIDTH OF THE INTERVAL
MUST BE EITHER 5 OR 10
YEARS. EXCEPTION: UNEVEN-AGED STANDS
ARE TO BE CODED 999.
*FOR THE PACIFIC NORTHWEST,
INTERMOUNTAIN, NORTH CENTRAL, AND
NORTHEAST REGIONS, A 10-YEAR
AGE CLASS INTERVAL IS USED (E.G.,
0-9, 10-19; OR 1-10, 11-20,
ETC. CLASSES WOULD HAVE MIDPOINTS
OF 5, 15, ETC.). WHERE DETAILED AGE CLASS DATA ARE NOT
AVAILABLE FOR OLD GROWTH,
STANDS OVER 200 YEARS OF AGE CAN BE
ASSIGNED TO THE NEAREST 100
YEAR CLASS MIDPOINTS (E.G., 250,
350, ETC.).
*FOR THE SOUTHERN AND
SOUTHEASTERN REGIONS A 5-YEAR AGE CLASS
INTERVAL IS USED (E.G., 0-7,
8-12, 13-17, ETC. CLASSES WOULD
HAVE MIDPOINTS OF 5, 10, 15,
ETC.). WHERE DETAILED AGE CLASS
DATA ARE NOT AVAILABLE FOR
OLD GROWTH, STANDS OVER 100 YEARS
OF AGE CAN BE ASSIGNED TO
THE NEAREST 100 YEAR CLASS MIDPOINTS
(E.G., 150, ETC.).
24.
SPCLASS SITE PRODUCTIVITY
CLASS. A CLASSIFICATION OF FOREST LANDS
IN
(Coded) TERMS OF
INHERENT CAPACITY TO GROW CROPS OF INDUSTRIAL WOOD.
THE CLASS IDENTIFIES THE
AVERAGE POTENTIAL GROWTH IN CUBIC
FT/AC/YEAR AND IS BASED ON
THE CULMINATION OF MEAN ANNUAL
INCREMENT OF FULLY STOCKED
NATURAL STANDS.
R P A F O R E S T D A T
A B A S E S T R U C T U R E
ELEMENT DEFINITIONS-CODE
SPECIFICATIONS
RECORD TYPE
1
(Cont.)
+=============+===============================================================+
| ELEMENT
| |
| NAME
| BRIEF DEFINITION AND
CODES |
+=============+===============================================================+
24.
SPCLASS CODES
(Cont.) 1 225-999 CUBIC FT/AC/YEAR
2 165-224 CUBIC FT/AC/YEAR
3 120-164 CUBIC FT/AC/YEAR
4 85-119 CUBIC FT/AC/YEAR
5 50- 84 CUBIC FT/AC/YEAR
6 20- 49 CUBIC FT/AC/YEAR
7 < 20 CUBIC FT/AC/YEAR
8
WOODLAND (NOT CALCULATED)
25.
STOCKPC PERCENT STOCKING
CLASS. A CODED VALUE INDICATING THE
PERCENT
(Coded) STOCKING CLASS FOR GROWING-STOCK IN THE STAND; THE 10%
INTERVAL CLASSES RANGE FROM
NON-STOCKED TO 100% STOCKING,
RELATIVE STOCKING
BASIS. DATA IN THE FORM OF ABSOLUTE
STOCKING (0-167 PERCENT
BASIS) SHOULD BE REDUCED TO RELATIVE
STOCKING BY DIVIDING BY A
FACTOR OF 1.67.
CODES
1 0- 9% (NONSTOCKED STANDS)
2 10-19%
3 20-29%
4 30-39%
5 40-49%
6 50-59%
7 60-69%
8 70-79%
9 80-89%
10 90-100%
26. TREATOPP
TREATMENT OPPORTUNITY CLASS. A
CODED VALUE THAT IDENTIFIES
(Coded) THE PHYSICAL OPPORTUNITY TO IMPROVE STAND CONDITIONS THROUGH
APPLICATION OF MANAGEMENT
PRACTICES.
CODES
1 REGENERATION WITHOUT SITE
PREPARATION: THE AREA IS
CHARACTERIZED BY
THE ABSENCE OF A MANAGEABLE STAND
BECAUSE OF
INADEQUATE STOCKING OF GROWING STOCK.
GROWTH WILL BE
CONSIDERABLY BELOW POTENTIAL FOR THE
SITE IF THE AREA
IS LEFT ALONE. PROSPECTS ARE NOT
R P A F O R E S T D A T
A B A S E S T R U C T U R E
ELEMENT DEFINITIONS-CODE
SPECIFICATIONS
RECORD TYPE
1
(Cont.)
+=============+===============================================================+
| ELEMENT
| |
| NAME
| BRIEF DEFINITION AND
CODES |
+=============+===============================================================+
26.
TREATOPP Code 1 Cont.
GOOD FOR NATURAL
REGENERATION. ARTIFICIAL
REGENERATION WILL
REQUIRE LITTLE OR N0 SITE
PREPARATION.
2 REGENERATION WITH SITE
PREPARATION: THE AREA IS
CHARACTERIZED BY
THE ABSENCE OF A MANAGEABLE STAND
BECAUSE OF
INADEQUATE STOCKING OF GROWING STOCK.
GROWTH WILL BE
CONSIDERABLY BELOW POTENTIAL FOR THE
SITE IF THE AREA
IS LEFT ALONE. EITHER NATURAL OR
ARTIFICIAL
REGENERATION WILL REQUIRE SITE
PREPARATION.
3 STAND CONVERSION: THE AREA IS CHARACTERIZED BY
STANDS OF
UNDESIRABLE, CHRONICALLY DISEASED, OR
OFF-SITE
SPECIES. GROWTH AND QUALITY WILL BE
CONSIDERABLY
BELOW POTENTIAL FOR THE SITE IF THE
AREA IS LEFT
ALONE. THE BEST PROSPECT IS FOR
CONVERSION TO A
DIFFERENT FOREST TYPE OR SPECIES.
4 THINNING SEEDLINGS AND SAPLINGS: THE STAND IS
CHARACTERIZED BY
A DENSE STOCKING OF GROWING
STOCK. STAGNATION APPEARS LIKELY IF LEFT ALONE.
STOCKING MUST BE REDUCED TO HELP CROP
TREES ATTAIN
DOMINANCE.
5 THINNING POLETIMBER: THE STAND IS CHARACTERIZED BY
A DENSE STOCKING
OF GROWING STOCK. STOCKING MUST
BE REDUCED TO
PREVENT STAGNATION OR TO CONFINE
GROWTH TO FEWER,
HIGH QUALITY CROP TREES.
6 OTHER STOCKING CONTROL: THE STAND IS CHARACTERIZED
BY AN ADEQUATE
STOCKING OF SEEDLINGS, SAPLINGS,
AND/OR POLETIMBER
GROWING STOCK, MIXED WITH
COMPETING
VEGETATION EITHER OVERTOPPING OR
OTHERWISE INHIBITING THE DEVELOPMENT OF CROP
TREES. THE UNDESIRABLE MATERIAL MUST BE REMOVED TO
RELEASE
OVERTOPPED TREES, PREVENT STAGNATION, OR TO
IMPROVE COMPOSITION,
FORM, OR GROWTH OF THE RESIDUAL
STAND.
R P A F O R E S T D A T
A B A S E S T R U C T U R E
ELEMENT DEFINITIONS-CODE
SPECIFICATIONS
RECORD TYPE
1
(Cont.)
+=============+===============================================================+
| ELEMENT
| |
| NAME
| BRIEF DEFINITION AND
CODES |
+=============+===============================================================+
26.
TREATOPP 7 OTHER INTERMEDIATE TREATMENTS: THE STAND WOULD
(Cont.) BENEFIT FROM OTHER SPECIAL TREATMENTS SUCH AS
FERTILIZATION TO
IMPROVE THE GROWTH POTENTIAL OF
THE SITE, AND
PRUNING TO IMPROVE THE QUALITY OF
INDIVIDUAL CROP
TREES.
8 CLEARCUT HARVEST: THE AREA IS CHARACTERIZED BY A
MATURE OR
OVERMATURE SAWTIMBER STAND OF SUFFICIENT
VOLUME TO JUSTIFY
A COMMERCIAL HARVEST. THE BEST
PROSPECT IS TO
HARVEST THE STAND AND REGENERATE.
9 PARTIAL CUT HARVEST: THE STAND IS CHARACTERIZED BY
POLETIMBER OR
SAWTIMBER SIZED TREES WITH SUFFICIENT
MERCHANTABLE VOLUME
FOR A COMMERCIAL HARVEST, WHICH
WILL ACHIEVE
INTERMEDIATE STAND TREATMENT NEEDS OR
PREPARE THE STAND
FOR NATURAL REGENERATION. THE
STAND IS OF A
FAVORED SPECIES COMPOSITION AND MAY
BE EVEN OR UNEVEN
AGED. INCLUDED ARE SUCH
TREATMENTS AS
COMMERCIAL THINNING, SEED TREE OR
SHELTERWOOD
REGENERATION, AND THE SELECTION SYSTEM
TO MAINTAIN AN UNEVEN AGE STAND.
10 SALVAGE HARVEST: THE STAND IS CHARACTERIZED BY
EXCESSIVE DAMAGE
TO MERCHANTABLE TIMBER DUE TO
FIRE, INSECTS,
DISEASE, WIND, ICE, OR OTHER
DESTRUCTIVE
AGENTS. THE BEST PROSPECT IS FOR
REMOVAL OF
DAMAGED OR THREATENED MATERIAL.
11 NO TREATMENT: STAND IS CHARACTERIZED BY AN
ADEQUATE STOCK OF
GROWING-STOCK TREES IN REASONABLY
GOOD CONDITION.
R P A F O R E S T D A T
A B A S E S T R U C T U R E
ELEMENT DEFINITIONS-CODE
SPECIFICATIONS
RECORD TYPE
1
(Cont.)
+=============+===============================================================+
| ELEMENT
| |
| NAME
| BRIEF DEFINITION AND
CODES |
+=============+===============================================================+
27 - 32 LOCAL INFORMATION ELEMENTS.
THE COLUMNS IN EACH OF THESE
LOCALINFO1-6 ELEMENTS CAN BE USED TO STORE ANY KIND OF NUMERIC INFORMATION
THAT THE CONTRIBUTOR WANTS
TO ADD TO THE DATA BASE. THERE
WILL BE NO NATIONAL
DOCUMENTATION OF WHAT CODES OR DATA ARE
BEING STORED; THIS WILL BE UP TO THE DATA MANAGER AT EACH
RESPECTIVE LOCATION. THESE ELEMENTS ALLOW SPACE WITHIN THE
RPA DATA BASE TO ENHANCE
EACH RECORD WITH CUSTOMIZED LOCAL
DATA. ALL DATA SHOULD BE RIGHT-JUSTIFIED WITHIN
EACH ELEMENT,
AND WILL BE RETRIEVABLE BY
USERS OF THE DATA BASE. THESE
ELEMENTS MAY BE MODIFIED IN
THE NATIONAL DATA BASE BY THE RPA
DATA MANAGER. DOCUMENTATION BY THE CONTRIBUTING UNIT FOR
EACH
LOCAL VARIABLE IS REQUIRED.
33.
CONTINID CONTINUATION
IDENTIFIER. THIS CODED VALUE INDICATES
WHETHER
(Coded) THE RECORD IS CONTINUED ONTO RECORD TYPE 2 (WHERE STAND VOLUME
ESTIMATES ARE ENTERED) OR NOT.
DO NOT LEAVE BLANK!
CODES
1 THE INFORMATION ON THIS RECORD IS
CONTINUED ON THE
FOLLOWING RECORD
TYPE #2, WHERE VOLUME MEASUREMENTS
ARE ENTERED.
THESE MEASUREMENTS ARE REQUIRED WHEN
AN INVENTORY
SAMPLE QUALIFIES AS TIMBERLAND BUT
SHOULD BE ENTERED
FOR ALL FOREST LAND WHEN
AVAILABLE.
0 ZERO -- THE RECORD IS NOT CONTINUED.
R P A F O R E S T D A T
A B A S E S T R U C T U R E
ELEMENT DEFINITIONS-CODE
SPECIFICATIONS
+=============+===============================================================+
| ELEMENT
| |
| NAME
| BRIEF DEFINITION AND
CODES |
+=============+===============================================================+
1.
RECTYPE RECORD TYPE. RECORD TYPE 1 CONTAINS AREA AND STAND
VARIABLES.
(coded) RECORD TYPE 2 CONTAINS STAND VOLUME VARIABLES. WHEN BOTH
RECORD TYPES ARE ENTERED FOR ONE STAND OR PLOT THEY
CONSTITUTE
ONE 'LOGICAL RECORD' FOR
THAT PLOT, AND BOTH LINES OF DATA
MUST RECEIVE THE SAME
RSID/STATE/COUNTY/RECNUM/CONDITION,
TO SHOW THAT THEY ARE
ASSOCIATED WITH THE SAME STAND OR PLOT.
2.
RSID (Coded) MUST BE IDENTICAL TO CODE ON ASSOCIATED
RECORD TYPE 1.
3.
STATE (Coded) MUST BE IDENTICAL
TO CODE ON ASSOCIATED RECORD TYPE 1.
4.
COUNTY (Coded) MUST BE IDENTICAL TO CODE ON ASSOCIATED RECORD TYPE 1.
5.
RECNUM (Coded) MUST BE IDENTICAL TO CODE ON ASSOCIATED RECORD TYPE 1.
6.
CONDITION MUST BE IDENTICAL
TO CODE ON ASSOCIATED RECORD TYPE 1.
(Coded)
7.
BDFTVOL- SOFTWOOD BOARD FOOT
VOLUME (INTERNATIONAL RULE). THE NET
SOFT-INT VOLUME/ACRE (BOARD FEET) OF SOFTWOOD GROWING STOCK. TREES
MUST BE >= 9 INCHES DBH,
AND BOARD FEET ESTIMATED WITH THE
INTERNATIONAL 1/4"
RULE. THE MINIMUM SAWLOG TOP IS 7"
DIAMETER OUTSIDE BARK.
8.
BDFTVOL- HARDWOOD BOARD FOOT
VOLUME (INTERNATIONAL RULE). THE NET
HARD-INT VOLUME/ACRE (BOARD FEET) OF HARDWOOD GROWING STOCK. TREES
MUST BE >= 11 INCHES DBH,
AND BOARD FEET ESTIMATED WITH THE
INTERNATIONAL 1/4"
RULE. THE MINIMUM SAWLOG TOP IS 9"
DIAMETER OUTSIDE BARK.
9.
BDFTVOL- SOFTWOOD BOARD FOOT
VOLUME (LOCAL RULE). A
"LOCAL" ESTIMATE
SOFT-LOCAL OF NET VOLUME/ACRE FOR SOFTWOOD GROWING STOCK USING A RULE
OTHER THAN THE INT.
1/4" RULE. THIS MAY BE USEFUL FOR
THOSE
LOCATIONS THAT PREFER TO USE
A DIFFERENT RULE LOCALLY, AND
WANT TO ENTER IT INTO THE
DATA BASE. THE TYPE OF LOCAL RULE
MUST BE SPECIFIED IN THE
DATA ELEMENT CALLED 'LOCAL RULE TYPE'.
R P A F O R E S T D A T
A B A S E S T R U C T U R E
ELEMENT DEFINITIONS-CODE
SPECIFICATIONS
RECORD TYPE 2
(Cont.)
+=============+===============================================================+
| ELEMENT
| |
| NAME
| BRIEF DEFINITION AND
CODES |
+=============+===============================================================+
9.
BDFTVOL-SOFT-LOCAL (Cont.)
*THE BOARD FOOT VOLUME USING
THE INTERNATIONAL 1/4" RULE IS
REQUIRED (Element #7) EVEN
WHEN A LOCAL RULE ESTIMATE IS
ENTERED.
10. BDFTVOL-
HARDWOOD BOARD FOOT VOLUME (LOCAL RULE). A "LOCAL" ESTIMATE
HARD-LOCAL OF VOLUME/ACRE FOR HARDWOOD GROWING STOCK USING A RULE OTHER
THAN THE INT. 1/4"
RULE. THIS MAY BE USEFUL FOR THOSE
LOCATIONS THAT PREFER TO USE
A DIFFERENT RULE LOCALLY, AND
WANT TO ENTER IT INTO THE
DATA BASE. THE TYPE OF LOCAL RULE
MUST BE SPECIFIED IN THE
DATA ELEMENT CALLED 'LOCAL RULE TYPE'.
*THE BOARD FOOT VOLUME USING
THE INTERNATIONAL 1/4" RULE IS
REQUIRED (Element #8) EVEN
WHEN A LOCAL RULE ESTIMATE IS
ENTERED.
11.
LOCAL RULE IDENTIFIES THE RULE USED
FOR THE LOCAL VOLUME ESTIMATION.
TYPE (Coded) THIS IS REQUIRED ONLY IF A VOLUME WAS ENTERED IN THE TWO
ELEMENTS ABOVE
(#9,#10). DIAMETER LIMITS ON LOCAL
VOLUME
ESTIMATES SHOULD BE AVAILABLE AT EACH CONTRIBUTING
SITE, AS A
REFERENCE FOR DATA BASE
USERS.
CODES
1 SCRIBNER - LONG LOG
2 SCRIBNER - SHORT LOG
3 DOYLE
4 INTERNATIONAL 1/8"
5 LOCAL CUBIC
12. CUBICVOL-
SOFTWOOD CUBIC FOOT VOLUME. NET
VOLUME/ACRE (CUBIC FEET) OF
SOFT SOFTWOOD GROWING STOCK.
TREES MUST BE >=5 INCHES DBH, TO A
MINIMUM 4" DIAMETER
OUTSIDE BARK.
R P A F O R E S T D A T
A B A S E S T R U C T U R E
ELEMENT DEFINITIONS-CODE
SPECIFICATIONS
RECORD TYPE 2
(Cont.)
+=============+===============================================================+
| ELEMENT
| |
| NAME
| BRIEF DEFINITION AND CODES |
+=============+===============================================================+
13. CUBICVOL-
HARDWOOD CUBIC FOOT VOLUME. NET
VOLUME/ACRE (CUBIC FEET) OF
HARD HARDWOOD GROWING STOCK.
TREES MUST BE >=5 INCHES DBH, TO A
MINIMUM 4" DIAMETER
OUTSIDE BARK.
14. LIVECULL-
SOFTWOOD LIVE CULL VOLUME. NET
VOLUME/ACRE (CUBIC FEET) OF
SOFT LIVE CULL SOFTWOOD TREES; TREES MUST BE >=5 INCHES DBH.
15. LIVECULL-
HARDWOOD LIVE CULL VOLUME. NET
VOLUME/ACRE (CUBIC FEET) OF
HARD LIVE CULL HARDWOOD TREES; TREES MUST BE >=5 INCHES DBH.
16. SOUNDEAD-
SOFTWOOD SOUND DEAD VOLUME. NET
VOLUME/ACRE (CUBIC FEET) OF
SOFT
MERCHANTABLE SOUND DEAD
SOFTWOOD TREES -- MERCHANTABILITY
DETERMINED BY REGIONAL
STANDARDS (SAME AS SALVABLE DEAD).
17. SOUNDEAD-
HARDWOOD SOUND DEAD VOLUME. NET
VOLUME/ACRE (CUBIC FEET) OF
HARD MERCHANTABLE SOUND DEAD HARDWOOD TREES -- MERCHANTABILITY
DETERMINED BY REGIONAL
STANDARDS (SAME AS SALVABLE DEAD).
18. MORTALITY-
SOFTWOOD MORTALITY. VOLUME/ACRE
(CUBIC FEET) OF ANNUAL
SOFT MORTALITY OF SOFTWOOD GROWING STOCK; TREES MUST BE >= 5
INCHES DBH.
19. MORTALITY-
HARDWOOD MORTALITY. VOLUME/ACRE
(CUBIC FEET) OF ANNUAL
HARD MORTALITY OF HARDWOOD GROWING STOCK; TREES MUST BE >= 5
INCHES DBH.
20. NETGROWTH-
SOFTWOOD GROWTH. NET ANNUAL
GROWTH/ACRE (CUBIC FEET) OF
SOFT SOFTWOOD GROWING STOCK. FOR ALL PRACTICAL PURPOSES, NET
GROWTH
IS GROSS GROWTH MINUS
MORTALITY, AND WILL BE AN ACCEPTABLE
VALUE FOR THE ASSESSMENT. TECHNICALLY, NET GROWTH IS GROSS
GROWTH MINUS MORTALITY MINUS
LOSS DUE TO CULL.
R P A F O R E S T D A T
A B A S E S T R U C T U R E
ELEMENT DEFINITIONS-CODE
SPECIFICATIONS
RECORD TYPE 2
(Cont.)
+=============+===============================================================+
| ELEMENT
| |
| NAME
| BRIEF DEFINITION AND
CODES |
+=============+===============================================================+
21. NETGROWTH-
HARDWOOD GROWTH. NET ANNUAL
GROWTH/ACRE (CUBIC FEET) OF
HARD HARDWOOD GROWING
STOCK. FOR ALL PRACTICAL PURPOSES, NET GROWTH
IS GROSS GROWTH MINUS
MORTALITY, AND WILL BE AN ACCEPTABLE
VALUE FOR THE
ASSESSMENT. TECHNICALLY, NET GROWTH IS
GROSS
GROWTH MINUS MORTALITY MINUS
LOSS DUE TO CULL.
22. BIOBOLE-
TOTAL GROSS BIOMASS (INCLUDING BARK) IN DRY POUNDS PER ACRE
SOFT OF ALL LIVE SOFTWOOD TREES 5-INCHES DBH OR LARGER FROM
A 1-FOOT STUMP TO A MINIMUM
4-INCH TOP DIAMETER OUTSIDE BARK
OF THE CENTRAL STEM.
23. BIOBOLE-
TOTAL GROSS BIOMASS (INCLUDING BARK) IN DRY POUNDS PER ACRE
HARD OF ALL LIVE HARDWOOD TREES 5-INCHES DBH OR LARGER FROM
A 1-FOOT STUMP TO A MINIMUM
4-INCH TOP DIAMETER OUTSIDE BARK
OF THE CENTRAL STEM.
24. BIOSAPS-
TOTAL GROSS ABOVE-GROUND BIOMASS (INCLUDING BARK) IN DRY
SOFT POUNDS PER ACRE OF ALL LIVE SOFTWOOD TREES FROM 1 TO
5-INCHES
DBH, INCLUDING TOPS AND
LIMBS.
25. BIOSAPS-
TOTAL GROSS ABOVE-GROUND BIOMASS (INCLUDING BARK) IN DRY
HARD POUNDS PER ACRE OF ALL LIVE HARDWOOD TREES FROM 1 TO
5-INCHES
DBH, INCLUDING TOPS AND
LIMBS.
R P A F O R E S T D A T
A B A S E S T R U C T U R E
ELEMENT DEFINITIONS-CODE
SPECIFICATIONS
+=============+===============================================================+
| ELEMENT
| |
| NAME
| BRIEF DEFINITION AND
CODES |
+=============+===============================================================+
1.
RECTYPE RECORD TYPE. RECORD TYPE 3 CONTAINS SUMMARY VARIABLES
(coded) FOR EACH COUNTY IN THE UNITED STATES.
2.
STATE THE STATE IN WHICH
THE INVENTORIED LAND IS LOCATED.
(Coded) See Record Type 1 for valid codes
3. COUNTY FIP COUNTY IDENTIFICATION NUMBER.
(Coded) **NOTE** STANDARD 3-DIGIT CODE USED BY BUREAU OF THE CENSUS
4.
RSID REGION OR STATION
IDENTIFICATION NUMBER. THIS CODED VALUE
(Coded) UNIQUELY IDENTIFIES EACH OF THE 16 LOCATIONS CONTRIBUTING
DATA
TO THE RPA DATA BASE. THIS ID CAN BE USED AS A
REFERENCE KEY TO DELETE AN
ENTIRE SET OF DATA FROM THE
AGGREGATED DATA BASE, TO
UPDATE A PARTICULAR RSID DATA BASE,
TO RETRIEVE A DATA BASE, OR TO PRODUCE A SUMMARY
REPORT FOR
INDIVIDUAL REGIONS OR
STATIONS.
CODES
1 REGION 1
2 REGION 2
3 REGION 3
4 REGION 4
5 REGION 5
6 REGION 6
8 REGION 8
9 REGION 9
10 REGION 10
22 INTERMOUNTAIN EXPERIMENT STATION
23 NORTH CENTRAL EXPERIMENT STATION
24 NORTHEAST EXPERIMENT STATION
26 PACIFIC NORTHWEST EXPERIMENT STATION
27 ALASKA -- PACIFIC NORTHWEST STATION
29 SOUTHERN RESEARCH STATION- SE AREA
30 SOUTHERN RESEARCH STATION- SC AREA
5.
CENDATE CENSUS YEAR
IDENTIFICATION
(Coded) CODES
80 1980
90 1990
R P A F O R E S T D A T
A B A S E S T R U C T U R E
ELEMENT DEFINITIONS-CODE
SPECIFICATIONS
RECORD TYPE 3
+=============+===============================================================+
| ELEMENT
| |
| NAME
| BRIEF DEFINITION AND
CODES |
+=============+===============================================================+
6.
MINLAT COUNTY ENVELOPE,
LATITUDE OF THE SOUTHERN MOST LEGAL BOUNDARY
OF THE COUNTY (MINIMUM
LATITUDE).
7.
MINLON COUNTY ENVELOPE,
LONGITUDE OF THE EASTERN MOST LEGAL BOUNDARY
OF THE COUNTY (MINIMUM
LONGITUDE).
8.
MAXLAT COUNTY ENVELOPE,
LATITUDE OF THE NORTHERN MOST LEGAL BOUNDARY
OF THE COUNTY (MAXIMUM
LATITUDE).
9.
MAXLON COUNTY ENVELOPE,
LONGITUDE OF THE WESTERN MOST LEGAL BOUNDARY
OF THE COUNTY (MAXIMUM
LONGITUDE).
10. AVGLAT
COUNTY ENVELOPE, AVERAGE LATITUDE VALUE.
11. AVGLON
COUNTY ENVELOPE, AVERAGE LONGITUDE VALUE.
12. CENLAND
TOTAL GROSS AREA OF LAND AS RECORDED BY THE DECENNIAL CENSUS
IN THE YEAR SPECIFIED IN
ITEM 5 ABOVE.
13. CENWATER
TOTAL GROSS AREA OF WATER AS RECORDED BY THE DECENNIAL CENSUS
IN THE YEAR SPECIFIED IN
ITEM 5 ABOVE.
14. CENPOP
TOTAL POPULATION AS RECORDED BY THE DECENNIAL CENSUS IN THE
YEAR SPECIFIED IN ITEM 5
ABOVE.
15. URCONT80
URBAN-RURAL CONTINUUM CLASS DEFINED FOR 1980 CENSUS DATA
(Coded) AS ASSIGNED TO THE COUNTY SPECIFIED IN ITEM 3 ABOVE
16. URCONT90
URBAN-RURAL CONTINUUM CLASS DEFINED FOR 1990 CENSUS DATA
(Coded) AS ASSIGNED TO THE COUNTY SPECIFIED IN ITEM 3 ABOVE
17. ECOCLASS
AVERAGE DELINIATION OF BAILEY'S MAJOR ECOREGIONS
(Coded) AS ASSIGNED TO THE COUNTY SPECIFIED IN ITEM 3 ABOVE
18. FORESTAC
TOTAL ACREAGE OF FOREST LAND SUMMARIZED FOR THE COUNTY
FROM AEF'S IN RECORD 1.
R P A F O R E S T D A T
A B A S E S T R U C T U R E
ELEMENT DEFINITIONS-CODE
SPECIFICATIONS
RECORD TYPE
3
+=============+===============================================================+
| ELEMENT
| |
| NAME
| BRIEF DEFINITION AND
CODES |
+=============+===============================================================+
19. TIMBERAC
TOTAL ACREAGE OF TIMBER LAND SUMMARIZED FOR THE COUNTY
FROM AEF'S IN RECORD 1.
20. RESERVAC
TOTAL ACREAGE OF RESERVED FOREST LAND SUMMARIZED FOR THE
COUNTY SPECIFIED FROM AEF'S
IN RECORD 1.
21. NFSLAND
TOTAL AREA OF NFS LAND BY COUNTY AS RECORDED IN FS-383
DATED 9/30/95. SUM OF AEF'S FOR NFS LANDS IN RECORD 1 WILL
BE VERIFIED AGAINST THIS
CONTROL VALUE.
22. NFSRESV
TOTAL RESERVED AREA ON NFS LANDS IN THE COUNTY AS RECORDED
IN DATA SUBMITTED FOR FS-383 (9/30/95). SUM OF VALUES FOUND
IN FS-383 TABLES 7, 10, 11,
12, 13, 15,17, 18, 19, AND 20.
23. CTYNAM
COUNTY NAME
*******************************************************************************
* 1 9 9
7 *
*
*
* N A T I O N A L R P A
F O R E S T D A T A B A S E *
* *
*
INPUT
STANDARDS
*
*
*
*******************************************************************************
The
manner in which data are submitted for the RPA data base will depend on the
region of the country and the status of standard inventory data in that
region. Wherever possible tree level
standard format data sets will be used.
The following will serve as a guide for data submission:
Northeast,
North Central, Southeast, and South Central RPA Sub-Regions
All
data for the eastern U.S. will be submitted to the RPA Data Center in Eastwide
standard format. RPA volume and area
summary files by county and 2-inch dbh summary files by state/region will be
generated by the RPA Data Center staff.
Summary check tables will be generated by the RPA Data Center and sent
to contributing units for verification of data sets.
Rocky
Mountain, Pacific Northwest, and Pacific Southwest RPA Sub-Regions
For
inventories submitted in Eastwide/Westwide standard format:
Wherever
available, data from the western U.S. will be submitted to the RPA Data Center
in Westwide standard format. RPA volume
and area summary files by county and 2-inch dbh summary files by state/region
will be generated by the RPA Data Center staff. Summary check tables will be generated by the RPA Data Center and
sent to contributing units for verification of data sets.
FOR
INVENTORIES UNAVAILABLE IN EASTWIDE/WESTWIDE STANDARD FORMAT:
When
Westwide format is not an option due to incomplete or missing 'grid' or other
suitable inventories, summary data AS DESCRIBED IN THIS DOCUMENT is required. A major difference for this Assessment is
that data must be aggregated at the county level rather than region/forest
level. This means that existing records
for the 1992 data base can not simply be updated 'in-place'.
For
these non-Westwide summary data submissions, plots or stands can be grouped
into 'strata' prior to creation of a record for the data base, provided the
area descriptors are identical. For
instance, plots or stands having the same county, owner, stand size, stand age,
forest type, and site productivity class could be grouped. The area expansion factor (AEF) would be the
sum of the individual AEF's, and the volume/acre would be the weighted average
of the volumes per acre for the groups of plots or stands.
In most
cases, it is best not to group "Timberland" plots, because such
grouping sacrifices some flexibility and makes corrections and updates of
individual records in the data base difficult.
But we strongly recommend that identical records, such as non-forest
plots by county, be grouped into a single record in the data base to save space
and cost in the management of data.
As with
Westwide inputs, summary check tables will be generated by the RPA Data Center
and sent to contributing units for verification of data sets.
ESTABLISHING UNIQUE RECORD IDs
WITHIN A DATA BASE
An
essential part of the RPA data base is to have a unique record identifier for
every plot, stand or stratum within an entire Region or Station data base.
This
unique identifier will be comprised of the concatenated codes for
RSID/STATE/COUNTY/RECNUM/CONDITION, and entered in columns 2 - 13 of each
record that relates to the same plot, stand or stratum data -- i.e. both record
types containing information for the same plot will have the same Record ID
combination.
Components
of a unique record ID:
RSID- The coded number for the Region or Station
submitting data to the RPA Data Center.
STATE- The standard 2-digit code assigned to each
State in the US by the Bureau of the Census.
COUNTY- The standard 3-digit code assigned to each
county in the US by the Bureau of the Census.
RECNUM- A 10 digit numeric code that can consist of
plot or stand number. The entire
10-digit number must be right-justified, so zero's may need to be entered as
'spacers'. RECNUM may be a consecutive number (i.e. increasing from 1 -
9999999999), but be aware that this numbering system could potentially cause
some duplication by 2 forests in one county.
CAUTION FOR NFS DATA: Care should be taken to make sure that if there is
data from more than one National Forest in the same NFS Region in a county that
the RECNUMs are unique.
CONDITION- A code which identifies a unique condition
(forest type, stand size, stand density) within a given field plot (RECNUM)
using the mapped plot design. If mapped
plots are not the origin of the inventory data, this field should contain a
zero. CAUTION: AREA (AEF) AND VOLUME
(VEF) EXPANDERS MUST BE THOSE ASSOCIATED WITH THE CONDITION AND NOT THE ENTIRE PLOT.
*******************************************************************************
* 1 9 9
7 *
*
*
* N A T I O N A L R P A
F O R E S T D A T A B A S E *
*
*
*
UPDATING
INVENTORIES *
* *
*******************************************************************************
GENERAL
GUIDELINES
Data
contained in the data bases will come from inventories completed at various
dates. The 1997 RPA Data Base will
depict information for the forest inventory situation as of January 1997. Depending on the year of collection and the
amount of change in the resource situation since that date, some data may need
to be updated to the common base year of 1997.
General
guidelines to determine the need for inventory updates are:
-- Inventories completed after January 1,
1994 need not be updated to the
1997 base year. Data collected during these years are assumed to be an
adequate representation of the current
status of inventoried land.
-- Inventories completed prior to 1994 should
be updated for volume if the
change in volume between date of
collection and 1997 exceeds an estimated 5
percent. Forest land area (in a state or a
national forest) should be
updated if the change in area between date
of collection and 1997 exceeds
and estimated 3 percent.
-- In any instance where the contributor
feels that the inventory data no
longer adequately represent the current
situation in terms of timber volume
or forest land area, the data files or the
summarized outputs should be
updated.
Since
the underlying data set will contain tree level data for as much as 75 percent
of the forest land in the U.S., the optimum situation would be to have observed
tree data for as many plots in the data base as possible with only modification
of the area (AEF) and volume (VEF) expanders as the method of updating. The primary reason for this is that the 1997
data base is expected to get a significant number of queries to assess spatial
attributes of growth, mortality, harvest, and species distribution. Current methods of updating, particularly
for harvest and mortality, could hamper spatial analysis. Therefore, providing observed data for
inventories conducted after January 1, 1994 and updating area expanders only
(without altering observed tree records) for earlier inventories are preferred
methods for the 1997 Assessment. In all
cases the contributor's judgment is relied upon to provide the best information
possible.
The
primary responsibility for determining the need for updates, developing updated
files, and documenting procedures rests with the contributing unit.
All
inventories with updated data for the 1997 Assessment must be documented by the
contributor. The documentation should
include references describing any growth/mortality models used, methods for
allocating harvest, and methods for estimating area change. Information on how modeled data were
validated or verified for accuracy should also be provided.
Note
that the updated data must account for all land and water acres within the
update area. So make sure that changes
will result in the proper total area for each owner group-county combination
and national forest. Data contributors
should complete the following form for each owner group-county combination in
every FIA data base, and for each forest-county combination in every Regional
data base and send to the RPA Data Center.
NOTES ON COMPLETING THE UPDATE
DOCUMENTATION FORM
This is
a documentation form- don't make your life miserable by filling one out for
every state or forest if you used an identical procedure for each one. Use the multiple blanks to identify all
areas that used a common procedure.
If you
used a growth model, specify which one and the version that you used. The same is requested for the mortality and
harvest models. Provide a reference for
any published documentation of the models or a location where unpublished
documentation may be obtained.
As
mentioned earlier it is anticipated that the 1997 RPA data base will have many
users wishing to perform some spatial analysis of the data. This makeS knowledge of the methods of
deriving and allocating harvest information during updates a critical
issue. In as general terms as possible
describe the method used (i.e. oldest, highest site stands harvested first, area
proportional distribution by type, etc.).
Note if partial harvesting was allowed or if all harvest was accounted
for by removal of entire stands.
Identify
the source of area change estimates (expert opinion, remote sensing evaluation,
etc.).
Identify
how you validated the models used. Was
it based on a subsample of newly remeasured data in the region of interest or
based upon published or unpublished validation trials.
Provide
any additional comments you feel would help document your updating procedure.
TABLE D. INVENTORY UPDATE DOCUMENTATION FORM
REGION/STATION ID (RSID) _____ (See code specifications)
ADMINISTRATIVE FOREST (ADMINFOR) ____ ____
____ ____ ____
____ ____
STATE (STATE) ____
____ ____ ____
____ ____ ____
OWNER GROUP (OWNGROUP) ____ ____ ____
DATE OF INVENTORY (SRCDATE) ____
____ ____ ____
____ ____ ____
UPDATE AREA VARIABLES? (Y/N) ____
____ ____ ____
____ ____ ____
UPDATE VOLUME VARIABLES? (Y/N) ____
____ ____ ____
____ ____ ____
AREA/VOLUME UPDATING
METHOD DOCUMENTATION
GROWTH MODEL __________________
VERSION/DATE __________________
MORTALITY MODEL __________________
VERSION/DATE __________________
HARVEST MODEL __________________
VERSION/DATE __________________
MODEL DOCUMENTATION ______________________________________________________
___________________________________________________________________________
___________________________________________________________________________
SOURCE OF HARVEST DATA
___________________________________________________
METHOD OF HARVEST ALLOCATION
_____________________________________________
___________________________________________________________________________
___________________________________________________________________________
SOURCE OF AREA CHANGE DATA
_______________________________________________
METHOD AREA CHANGE ALLOCATION [proportional, type/size class, etc.]
___________________________________________________________________________
___________________________________________________________________________
VALIDATION PROCEDURES ___________________________________________________
___________________________________________________________________________
COMMENTS
_______________________________________________________________
___________________________________________________________________________
*******************************************************************************
* 1 9 9 7 *
*
*
* N A T I O N A L R P A F O R E S
T D A T A B A S E *
*
*
*
*
** SUPPLEMENTAL
DATA REQUIREMENTS ** *
*
*
*******************************************************************************
VOLUME BY SPECIES AND
DIAMETER CLASS
The
1997 RPA Assessment documents will again include "species by diameter
class" information. The method for
generating tables of this information will depend on the method in which base
data are contributed.
For
inventories submitted in Eastwide/Westwide standard format:
If you
are sending data in standard Eastwide or Westwide format species by diameter
class tables will be generated automatically from the RPA input data at the
National Data Center. Check tables will
be sent back to the contributing unit for review and verification prior to
publication.
THE
FOLLOWING SECTION IS ONLY FOR DATA NOT SUBMITTED IN EASTWIDE OR WESTWIDE
STANDARD FORMATS
For
inventories unavailable in Eastwide/Westwide standard format
Each
region and station must provide tables of expanded volume by species and
diameter classes, aggregated across all plots, stands, or strata of timberland
for each state. Both cubic and board
foot (Int 1/4") volumes must be provided, and they should not be rounded
but reported to the nearest respective unit of measure. This data will be sent to the RPA Data
Center as an ASCII datafile.
The
following tables describe the data requirements to meet the species by diameter
class information needs; Data for tables 1-4 must be supplied by regions or
stations in the East, and Tables 5-6 must be supplied by regions and stations
in the West.
Contributors
for the Eastern US must develop the following:
o
Eleven (one per DBHCODE 1-11) 2-line records per owner group (OWNGROUP)
for softwood growing stock (Table 1).
o
Nine (one per DBHCODE 3-11) 2-line records per owner group (OWNGROUP)
for softwood sawtimber (Table 2).
o
Eleven (one per DBHCODE 1-11) 4-line records per owner group (OWNGROUP)
for hardwood growing stock (Table 3).
o
Eight (one per DBHCODE 4-11) 4-line records per owner group (OWNGROUP)
for hardwood sawtimber (Table 4).
Contributors
for the Western US must develop the following:
o
Eleven (one per DBHCODE 1-11) 4-line records per owner group (OWNGROUP)
for softwood and hardwood growing stock
(Table 5).
o
Nine (one per DBHCODE 3-11 for softwoods and 4-11 for hardwoods) 2-line
records per owner group (OWNGROUP) for
softwood and hardwood sawtimber
(Table 6).
o
Eight (one per DBHCODE 4-11) 4-line records per owner group (OWNGROUP)
for hardwood sawtimber (Table 6).
Once
the files are received, the RPA data manager will assume responsibility for
incorporating them into the RPA reports.
Check tables will be sent back to the contributing unit for review and
verification prior to publication.
REMINDER:
Since these values can not be derived from the RPA plot summary format data
contributors must make sure that the table totals agree with comparable figures
that the data manager would get by querying state/owner plot summary totals in
the RPA data base.
R P A
F O R E S T D A T A B A S E
S T R U C T U R E
TABLE E.
DATA ELEMENTS FOR DBH TABLES 1 AND 2, GROWING
STOCK AND SAWTIMBER VOLUME FOR
EASTERN SOFTWOODS
SHOWING ELEMENTS, FORMAT, COLUMNS,
AND UNITS.
+======================== ========= =========
=============+
| |
| | |
| | FORTRAN | | UNITS |
|
ELEMENT NAME | FORMAT | COLUMNS | (C=CODED) |
|======================== ========= =========
=============|
| |
|LINE 1 |
| 1. TABNUM I1
1 C |
| 2. LINENUM I1
2 "1" |
| 3. STATE I2
3-4 C |
| 4. RSID I2
5-6 C |
| 5. SUBREGION I1
7 C |
| 6. SRCDATE I2
8-9 C |
| 7. OWNGROUP I1
10 C |
| 8. DBHCODE a I2
11-12 C |
| 9. Total softwoods F17.0 13-29
CUFT/BDFT |
|10. Longleaf/Slash pine F17.0
30-46 CUFT/BDFT |
|11. Loblolly/Shortlf pine F17.0 47-63 CUFT/BDFT |
|12. Other yellow pines F17.0
64-80 CUFT/BDFT |
|13. E White/Red pine F17.0 81-97
CUFT/BDFT |
| |
|LINE 2 |
| 1. TABNUM I1
1 C |
| 2. LINENUM I1
2 "2" |
| 3. STATE I2
3-4 C |
| 4. RSID I2
5-6 C |
| 5. SUBREGION I1
7 C |
| 6. SRCDATE I2
8-9 C |
| 7. OWNGROUP I1
10 C |
| 8. DBHCODE a I2
11-12 C |
| 9. Jack pine F17.0
13-29 CUFT/BDFT |
|10. Spruce/Balsam fir F17.0
30-46 CUFT/BDFT |
|11. Eastern hemlock F17.0 47-63
CUFT/BDFT |
|12. Cypress F17.0
64-80 CUFT/BDFT |
|13. Other softwoods F17.0 81-97
CUFT/BDFT |
|
(w/Ponderosa pine) ^
^ |
| TAB1/TAB2 |
+==========================================================+
a: There will be one 2-line record per
DBHCODE per OWNGROUP
for each table.
R P A
F O R E S T D A T A B A S E
S T R U C T U R E
TABLE F.
DATA ELEMENTS FOR DBH TABLES 3 AND 4, GROWING
STOCK AND SAWTIMBER VOLUME FOR
EASTERN HARDWOODS
SHOWING ELEMENTS, FORMAT, COLUMNS,
AND UNITS.
+======================== ========= =========
=============+
| |
| | |
| | FORTRAN | | UNITS |
|
ELEMENT NAME | FORMAT | COLUMNS | (C=CODED) |
|======================== ========= =========
=============|
| |
|LINE 1 |
| 1. TABNUM I1
1 C |
| 2. LINENUM I1
2 "1" |
| 3. STATE I2
3-4 C |
| 4. RSID I2
5-6 C |
| 5. SUBREGION I1
7 C |
| 6. SRCDATE I2
8-9 C |
| 7. OWNGROUP I1
10 C |
| 8. DBHCODE a I2
11-12 C |
| 9. Total hardwoods F17.0 13-29
CUFT/BDFT |
|10. Select white oaks F17.0
30-46 CUFT/BDFT |
|11. Select red oaks F17.0 47-63
CUFT/BDFT |
|12. Other white oaks F17.0 64-80
CUFT/BDFT |
|13. Other red oaks F17.0 81-97 CUFT/BDFT |
| |
|LINE 2 |
| 1. TABNUM I1
1 C |
| 2. LINENUM I1 2 "2" |
| 3. STATE I2
3-4 C |
| 4. RSID I2
5-6 C |
| 5. SUBREGION I1
7 C |
| 6. SRCDATE I2 8-9 C |
| 7. OWNGROUP I1
10 C |
| 8. DBHCODE a I2
11-12 C |
| 9. Hickory F17.0
13-29 CUFT/BDFT |
|10. Yellow birch F17.0 30-46 CUFT/BDFT |
|11. Hard maple F17.0
47-63 CUFT/BDFT |
|12. Soft maple F17.0
64-80 CUFT/BDFT |
|13. Beech F17.0
81-97 CUFT/BDFT |
| ^
^ |
| TAB3/TAB4 |
+==========================================================+
R P A
F O R E S T D A T A B A S E
S T R U C T U R E
TABLE F.
DATA ELEMENTS FOR DBH TABLES 3 AND 4, GROWING
(cont.)
STOCK AND SAWTIMBER VOLUME FOR EASTERN HARDWOODS
SHOWING ELEMENTS, FORMAT, COLUMNS,
AND UNITS.
+======================== ========= =========
=============+
| |
| | |
| | FORTRAN | | UNITS |
|
ELEMENT NAME | FORMAT | COLUMNS | (C=CODED) |
|======================== ========= =========
=============|
| |
|LINE 3 |
| 1. TABNUM I1
1 C |
| 2. LINENUM I1
2 "3" |
| 3. STATE I2
3-4 C |
| 4. RSID I2
5-6 C |
| 5. SUBREGION I1
7 C |
| 6. SRCDATE I2
8-9 C |
| 7. OWNGROUP I1
10 C
|
| 8. DBHCODE a I2
11-12 C |
| 9. Sweetgum F17.0
13-29 CUFT/BDFT |
|10. Tupelo and black gum F17.0
30-46 CUFT/BDFT |
|11. Ash F17.0
47-63 CUFT/BDFT |
|12. Basswood F17.0
64-80 CUFT/BDFT |
|13. Yellow-poplar F17.0
81-97 CUFT/BDFT |
| |
|LINE 4 |
| 1. TABNUM I1
1 C |
| 2. LINENUM I1
2 "4" |
| 3. STATE I2
3-4 C |
| 4. RSID I2
5-6 C |
| 5. SUBREGION I1
7 C |
| 6. SRCDATE I2
8-9 C |
| 7. OWNGROUP I1
10 C |
| 8. DBHCODE a I2
11-12 C |
| 9. Cottonwood & aspen F17.0
13-29 CUFT/BDFT |
|10. Black walnut F17.0
30-46 CUFT/BDFT |
|11. Black cherry F17.0
47-63 CUFT/BDFT |
|12. O. eastern hardwoods F17.0
64-80 CUFT/BDFT |
|
^ ^
|
| TAB3/TAB4 |
+==========================================================+
a: There will be one 4-line record per
DBHCODE per OWNGROUP
for each table.
R P A
F O R E S T D A T A B A S E
S T R U C T U R E
TABLE G.
DATA ELEMENTS FOR DBH TABLES 5 AND 6, GROWING
STOCK AND SAWTIMBER VOLUME FOR
WESTERN SPECIES
SHOWING ELEMENTS, FORMAT, COLUMNS,
AND UNITS.
+======================== ========= =========
=============+
| |
| | |
| | FORTRAN | | UNITS |
|
ELEMENT NAME | FORMAT | COLUMNS | (C=CODED) |
|======================== ========= =========
=============|
| |
|LINE 1 |
| 1. TABNUM I1
1 C |
| 2. LINENUM I1
2 "1" |
| 3. STATE I2
3-4 C |
| 4. RSID I2
5-6 C |
| 5. SUBREGION I1
7 C |
| 6. SRCDATE I2
8-9 C |
| 7. OWNGROUP I1
10 C |
| 8. DBHCODE a I2
11-12 C |
| 9. Total softwoods F17.0 13-29
CUFT/BDFT |
|10. Douglas fir F17.0
30-46 CUFT/BDFT |
|11. Ponderosa & Jeffrey F17.0
47-63 CUFT/BDFT |
|12. True fir F17.0
64-80 CUFT/BDFT |
|13. Western hemlock F17.0 81-97
CUFT/BDFT |
| |
|LINE 2 |
| 1. TABNUM I1
1 C |
| 2. LINENUM I1
2 "2" |
| 3. STATE I2 3-4 C |
| 4. RSID I2
5-6 C |
| 5. SUBREGION I1
7 C |
| 6. SRCDATE I2
8-9 C |
| 7. OWNGROUP I1 10 C |
| 8. DBHCODE a I2
11-12 C |
| 9. Sugar pine F17.0
13-29 CUFT/BDFT |
|10. W white pine F17.0
30-46 CUFT/BDFT |
|11. Redwood F17.0
47-63 CUFT/BDFT |
|12. Sitka spruce F17.0
64-80 CUFT/BDFT |
|13. Engelmann & O. spruce F17.0 81-97 CUFT/BDFT |
| ^ ^
|
| TAB5/TAB6 |
+==========================================================+
R P A
F O R E S T D A T A B A S E
S T R U C T U R E
TABLE G.
DATA ELEMENTS FOR DBH TABLES 5 AND 6, GROWING
(cont.)
STOCK AND SAWTIMBER VOLUME FOR WESTERN SPECIES
SHOWING ELEMENTS, FORMAT, COLUMNS,
AND UNITS.
+======================== ========= =========
=============+
| |
| | |
| | FORTRAN | | UNITS |
|
ELEMENT NAME | FORMAT | COLUMNS | (C=CODED) |
|======================== ========= =========
=============|
| |
|LINE 3 |
| 1. TABNUM I1
1 C |
| 2. LINENUM I1
2 "3" |
| 3. STATE I2
3-4 C |
| 4. RSID I2
5-6 C |
| 5. SUBREGION I1
7 C |
| 6. SRCDATE I2
8-9 C |
| 7. OWNGROUP I1
10 C |
| 8. DBHCODE a I2
11-12 C |
| 9. Western larch F17.0
13-29 CUFT/BDFT |
|10. Incense cedar F17.0
30-46 CUFT/BDFT |
|11. Lodgepole pine F17.0 47-63 CUFT/BDFT |
|12. O. western softwoods F17.0
64-80 CUFT/BDFT |
|13. Western redcedar F17.0 81-97
CUFT/BDFT |
| |
|LINE 4 |
| 1. TABNUM I1
1 C |
| 2. LINENUM I1
2 "4" |
| 3. STATE I2
3-4 C |
| 4. RSID I2
5-6 C |
| 5. SUBREGION I1
7 C |
| 6. SRCDATE I2
8-9 C |
| 7. OWNGROUP I1
10 C |
| 8. DBHCODE a I2
11-12 C |
| 9. Total hardwoods F17.0 13-29
CUFT/BDFT |
|10. Cottonwood & aspen F17.0
30-46 CUFT/BDFT |
|11. Red Alder F17.0
47-63 CUFT/BDFT |
|12. Oak F17.0
64-80 CUFT/BDFT |
|13. O. western hardwoods F17.0
81-97 CUFT/BDFT |
| ^ ^ |
| TAB5/TAB6 |
+==========================================================+
a: There will be one 4-line record per
DBHCODE per OWNGROUP
for each table.
R P A F O R E S T D A T A
B A S E S T R U C T U R E
ELEMENT
DEFINITIONS-CODE
SPECIFICATIONS
FOR VARIABLES SHOWN IN
TABLES E THRU G
+=============+===============================================================+
| ELEMENT
| |
| NAME
| BRIEF DEFINITION AND
CODES |
+=============+===============================================================+
1.
TABNUM TABLE NUMBER
(coded) Code Description
1 VOLUME RECORDS FOR EASTERN SOFTWOOD GROWING STOCK IN CUFT
2 VOLUME RECORDS FOR EASTERN SOFTWOOD SAWTIMBER IN BDFT-
INTERNATIONAL 1/4-INCH
RULE.
3 VOLUME RECORDS FOR EASTERN HARDWOOD GROWING STOCK IN CUFT
4 VOLUME RECORDS FOR EASTERN HARDWOOD SAWTIMBER IN BDFT
INTERNATIONAL 1/4-INCH
RULE.
5 VOLUME RECORDS FOR WESTERN SOFTWOOD AND HARDWOOD
GROWING STOCK IN CUFT
6 VOLUME RECORDS FOR WESTERN SOFTWOOD AND HARDWOOD SAWTIMBER
IN BDFT- INTERNATIONAL
1/4-INCH RULE.
1.
LINENUM LINE NUMBER 1-4.
ENTER VALUE AS SHOWN IN DATA RECORD
DESCRIPTION.
2.
STATE CODED IN ACCORDANCE
WITH DOCUMENTATION IN RECORD TYPE 1.
3.
RSID CODED IN ACCORDANCE
WITH DOCUMENTATION IN RECORD TYPE 1.
4.
SUBREGION CODED IN ACCORDANCE
WITH DOCUMENTATION IN RECORD TYPE 1.
5.
SRCDATE CODED IN ACCORDANCE
WITH DOCUMENTATION IN RECORD TYPE 1.
6.
OWNGROUP CODED IN ACCORDANCE
WITH DOCUMENTATION IN RECORD TYPE 1.
7.
DBHCODE DBH CLASS CODE.
(coded)
Code Description
1 5.0 - 6.9 INCHES
2 7.0 - 8.9 INCHES
3 9.0 - 10.9 INCHES
4 11.0 - 12.9 INCHES
5 13.0 - 14.9 INCHES
6 15.0 - 16.9 INCHES
7 17.0 - 18.9 INCHES
8 19.0 - 20.9 INCHES
9 21.0 - 28.9 INCHES
10 29.0+ INCHES
11 All DBH Class Total
9-13.
VOLUME TO THE NEAREST WHOLE UNIT (CUFT OR BDFT) BY SPECIES LISTED
IN THE RECORD DESCRIPTION
*********************************************************************************
* 1 9 9 7 *
*
*
* N A T I O N A L R P A F O R E S
T D A T A B A S E *
*
*
* AREA BALANCING *
*
*
*********************************************************************************
Introduction
Area
balancing for the 1997 RPA Data Base involves (1) matching area values entered
into the plot-level database for National Forest System lands with area values
reported in "Land Areas of the National Forest System - As of September
30, 1995", FS-383 at the county level; and (2) matching area values
entered into the plot-level database for all lands with county-level 1990
Census land and water area.
A
supplemental table will be provided to show control areas by state and county,
including NFS total land and reserved land areas, for all counties in the
United States. It will be the
responsibility of the data contributor to verify that the submitted data are
accurate. For brevity, state-level
control summaries are presented in this document as an example format for the
supplemental table. All area control
values will be included in the county data base record (Record Type 3)
Data
contributors from the REGIONS are required to balance the area for the National
Forest System lands in their regions.
Data contributors from the STATIONS are required (1) to balance the area
for National Forest System lands in their area if they are providing the data
for that Region, and (2) to balance the area for state totals. If a STATION is not entering data for the
Region in their area, the table listing state totals contains a column that
lists the state total (excluding National Forest System area) which they should
use in balancing the area.
Check
values will be loaded into the RPA Data Base County Record (Record 3) and check
tables produced to verify that areas are correctly balanced for each
county. It will be the responsibility
of the contributor to correct any errors in their data.
IMPORTANT
REMINDER: THE TABLE PRESENTED HERE IS AT THE STATE LEVEL FOR BREVITY. AREA RECORDS IN THE RPA DATA BASE MUST BE
BALANCED AT THE COUNTY LEVEL BY THE CONTRIBUTOR. A SUPPLEMENTAL TABLE, BASED ON 1990 CENSUS AND FS-383 (9/30/95)
TABLE 4 FOR TOTALS AND THE SUM OF TABLES 7, 10, 11, 12, 13, 15,17, 18, 19, 20
FOR RESERVED, WILL BE PROVIDED FOR COUNTY LEVEL VERIFICATION. THESE CONTROL VALUES WILL ALSO RESIDE IN THE
COUNTY RECORD (RECORD 3) OF THE RPA DATA BASE.
TABLE
H.- AREA OF LAND, WATER, AND NATIONAL FOREST SYSTEM LANDS BY
RPA REGION AND STATE
===========================================================================
1990 CENSUS NATIONAL FOREST SYSTEM*
========================= TOTAL
=======================
REGION CENSUS NON- TOTAL UNRE-
RE-
AND
LAND & CENSUS CENSUS
NFS NFS SERVED
SERVED
STATE WATER LAND WATER LAND
LAND LAND LAND**
(1) (2)
(3) (4) (5)
(6) (7) (8)
===========================================================================
.................... THOUSAND
ACRES .......................
NORTHEAST
CONNECTICUT 3,548
3,101 447 3,101 a
a 0
DELAWARE 1,593 1,251 342 1,251 0 0 0
MAINE 22,648 19,753 2,895 19,700 53 41 12
MARYLAND 7,941 6,256 1,685 6,256 0 0 0
DIST.
OF COL. 44 39 4 039 0
0 0
MASSACHUSETTS 6,755
5,016 1,739 5,016 0 0 0
NEW
HAMPSHIRE 5,985 5,740
244 5,016 724
621 103
NEW
JERSEY 5,582 4,748 834
4,748 0 0
0
NEW
YORK 34,864 30,223
4,640 30,208 15
15 0
PENNSYLVANIA 29,477
28,685 793 28,171
513 477 37
RHODE
ISLAND 989 669
320 669 0 0
0
VERMONT 6,154 5,920 234 5,564
355 259 096
WEST
VIRGINIA 15,508 15,415 93 14,383 1,032
894 138
TOTAL
141,087 126,817 14,270
124,124 2,693 2,307
386
NORTH
CENTRAL
ILLINOIS 37,067 35,580 1,488 35,306
273 248 26
INDIANA 23,309 22,957 352 22,763
194 181 13
IOWA 36,016 35,760 256 35,760 0 0 0
MICHIGAN 61,959 36,358 25,601 33,503
2,855 2,619 236
MINNESOTA 55,643 50,955 4,689 48,123
2,832 2,022 810
MISSOURI 44,614 44,095 519 42,603
1,492 1,423 69
OHIO 28,690 26,210 2,480 25,988
222 222 0
WISCONSIN 41,922 34,761 7,161 33,241
1,520 1,477 43
TOTAL
329,220 286,674 42,546
277,286 9,388 8,191
1,197
SOUTHEAST
FLORIDA 42,085 34,558 7,527 33,411
1,147 992 154
GEORGIA 38,042 37,068 974 36,203
865 695 170
N.
CAROLINA 34,446 31,180
3,266 29,938 1,242
1,033 209
S.
CAROLINA 20,485 19,271
1,213 18,659 612
538 74
VIRGINIA 27,372 25,343 2,029 23,688
1,655 1,421 233
TOTAL
162,430 147,419 15,010
141,899 5,520 4,680
840
SOUTH
CENTRAL
ALABAMA 33,551 32,480 1,071 31,817
663 622 41
ARKANSAS 34,037 33,328 709 30,775
2,553 2,291 262
KENTUCKY 25,863 25,429 435 24,740
688 672 17
LOUISIANA 33,180 27,882 5,298 27,279
604 590 14
MISSISSIPPI 30,997
30,025 973 28,869
1,156 1,146 11
===========================================================================
TABLE
H.- AREA OF LAND, WATER, AND NATIONAL FOREST SYSTEM LANDS BY
RPA REGION AND STATE (continued)
===========================================================================
1990 CENSUS NATIONAL FOREST SYSTEM*
=========================
TOTAL =======================
REGION CENSUS NON-
TOTAL UNRE- RE-
AND
LAND & CENSUS CENSUS
NFS NFS SERVED
SERVED
STATE WATER LAND WATER LAND
LAND LAND LAND**
(1) (2)
(3) (4) (5)
(6) (7) (8)
===========================================================================
.................... THOUSAND
ACRES .......................
SOUTH
CENTRAL (continued)
OKLAHOMA 44,738 43,954 784 43,652
302 262 40
TENNESSEE 26,973 26,380 593 25,748
633 555 77
TEXAS 171,905 167,625 4,279 166,870
755 717 38
TOTAL 401,244 387,104 14,140 379,749
7,354 6,854 500
GREAT
PLAINS
KANSAS 52,660 52,367 294 52,259
108 108 0
NEBRASKA 49,509 49,202 308 48,850
352 338 14
NORTH
DAKOTA 45,250 44,156
1,094 43,051 1,106
1,106 0
SOUTH
DAKOTA 49,358 48,575
783 46,561 2,014
1,970 43
TOTAL
196,778 194,299
2,479 190,720 3,580
3,522 58
ROCKY
NOUNTAINS
ARIZONA 72,964 72,731 233 61,480
11,251 9,108 2,143
COLORADO 66,624 66,387 237 51,885
14,502 11,311 3,190
IDAHO 53,487 52,961 527 32,518
20,443 15,380 5,063
MONTANA 94,110 93,156 953 76,283
16,873 13,403 3,469
NEVADA 70,763 70,276 487 64,460
5,816 4,717 1,099
NEW MEXICO 77,823
77,673 150 68,347
9,327 7,937 1,390
UTAH 54,339 52,588 1,751 44,475
8,112 7,244 869
WYOMING 62,604 62,147 457 52,889
9,258 6,044 3,214
TOTAL
552,713 547,918 4,795
452,337 95,581 75,145
20,436
PACIFIC
NORTHWEST
ALASKA 420,111 365,039 55,072 343,034
22,005 12,985 9,020
OREGON 62,967 61,442 1,525 45,778
15,664 13,021 2,643
WASHINGTON 45,634
42,612 3,021 33,437
9,175 06,399 2,776
TOTAL
528,712 469,093 59,619
422,249 46,844 32,405
14,438
PACIFIC
SOUTHWEST
CALIFORNIA 104,773
99,823 4,950 79,195
20,628 15,665 4,963
HAWAII 6,996 4,111 2,885 4,111 a a 0
TOTAL
111,769 103,934 7,835
83,306 20,628 15,665
4,963
U.S.
TOTAL 2,423,952 2,263,259 160,693
2,071,672 191,587 148,769 42,818
===========================================================================
* Based on FS-383, September 30, 1995
**
Based on the sum of Tables 7, 10, 11, 12, 13, 15,17, 18, 19, 20 from
FS-383, September 30, 1995
a Less than 500 acres
b Water includes coastal, inland, Great Lakes and territorial waters.
INTERPRETING 1990 CENSUS LAND AND
WATER AREA DATA
The
table listed on the previous pages contains total land area and total water
area by state based on the 1990 Census and National Forest System land areas
based on FS-383 for September 30, 1995.
The first column in the table lists the RPA region and state, the second
column lists total land and water area (this includes non-census water). The third column lists total land area (this
includes non-census water), the fourth column lists total water area (this
includes coastal, inland, Great Lakes and territorial waters). The fifth column lists the sum of all
non-NFS lands. This column is the
control area for Station contributions of non-NFS lands. The sixth column lists the total area of
National Forest System lands in that state.
This value includes National Forests and all other lands within the National
Forest System (Land Utilization Projects, National Grasslands, Experimental
Areas, etc...). The seventh and eighth
columns divide the NFS lands into unreserved and reserved categories.
If a
STATION data contributor is submitting data for all lands in a state, the land
and water area listed in columns 3 and 4 are the appropriate data to compare
with. If a STATION data contributor is
submitting data for only non-National Forest lands, use columns 4 and 5 to
obtain the total land and water area that needs to be accounted for by their
unit.
When an
adjustment must be made, the Area Expansion Factor (AEF) entered into the RPA
database is the variable that will need to be changed to make the areas
balance. This may be done by assigning
all of the adjustment to a single record in the target county or 'spreading'
the adjustment evenly across all records in a county. It is the responsibility of the data contributor to determine the
most appropriate option.
*********************************************************************************
* 1 9 9
7 *
*
*
* N A T I O N A L R P A
F O R E S T D A T A B A S E *
*
*
* ADDITIONAL INFORMATION FOR
NFS CONTRIBUTORS *
* *
*********************************************************************************
The
following table is an example of the total reserved area that must be accounted
for in the NFS data submission to the RPA.
The actual totals for the 1997 RPA Data Base will come from the county
level data collected for the September 30, 1995 version of FS-383. The classes
represented need not be accounted for separately, but the aggregate total of
all classes must be accounted for by county for each forest as accurately as is
feasible. These values are not
available by county in FS-383, but will be provided to contributors in a
supplemental table.
TABLE
I.- National Forest System Reserved Lands by Land Class
===========================================================================
Table Land Class FS-383 9/30/95 Acres
===========================================================================
Table
7. National Wilderness Areas 34,576,684
Table
10. National Primitive Areas 173,762
Table
11. National Scenic-Research
Areas 6,630
Table
12. National Scenic Areas 105,313
Table
13. National Wild & Scenic
Rivers 619,816
Table
15. National Recreation Areas 2,675,345
Table
17. National Game Refuges &
Wildlife Preserves 1,218,953
Table
18. National Monument Areas 3,267,309
Table
19. National Volcanic Monument
Areas 167,415
Table
20. National Historic Areas 6,540
===========================================================================
All NFS reserved lands 42,817,767
===========================================================================
The
following table demonstrates the level of detail that must be present in NFS
data submissions to the RPA. Counties
may be combined into groups for reporting with the approval of the RPA Data
Coordinator. Forests with Westwide
standard data files will automatically have the detail needed to complete the
table below. Forests with only summary
file data (as submitted in 1992) will require additional manipulation
TABLE J.- National Forest Area &
Volume Reporting Capability
.
.
| | FOREST
LAND |
NONFOREST LAND |
| FS-383 | Available |
| |
|Area Table 4 | Timber- | |
Un- |
|Class Land area* | land Other | Resrvd. |
reserved Reserved|
State
Forest
County 1 area area+ area
area area area
County 2 volume
vol** vol**
County ...
Forest Total
Forest
County 1 area area+ area
area area area
County 2 volume
vol** vol**
County ...
Forest Total
...
State
Total area area+ area area area area
volume vol**
vol**
========================================================================
* NFS acreage column total (FS-383, 9/30/95)
which must be completely
accounted for in data base.
** Optional, but should be provided when data are available.
Terms,
as defined in FS-383 for National Forest Lands, are as follows:
National
Forest- A unit formally established and
permanently set aside and reserved for National Forest purposes.
Purchase
Unit- A unit designated by the
Secretary of Agriculture or previously approved by the National Forest
Reservation Commission for purposes of Weeks Law acquisition.
National
Grassland- A unit designated
"National Grasslands" by the Secretary of Agriculture and permanently
held by the Department of Agriculture under Title III of the Bankhead-Jones
Farm Tenant Act.
Land
Utilization Project- A unit designated
by the Secretary of Agriculture for Conservation and Utilization under Title
III of the Bankhead-Jones Farm Tenant Act.
Research
& Experimental Area- A unit
reserved and dedicated by the Secretary of Agriculture for Forest or Range
Research and Experimentation.
Other
Area- An area that is administered by
the Forest Service which is not included in one of the subgroups.
*********************************************************************************
* 1 9 9
7 *
*
*
* N A T I O N A L R P A
F O R E S T D A T A B A S E
*
*
*
*
*
*********************************************************************************
TABLE
K. Green-to-dry weight conversion factors, approximate green and dry
weights per cubic foot of wood and
bark for Eastwide Data Base
species groups
===============================================================================
Factor
to Approx. Approx.
convert green dry
EW green weight of
weight of
Grp
Species group name
weight to wood + bark wood + bark
dry
weight* per cu.ft. per cu.ft.
===============================================================================
1
Longleaf and slash pine
0.50 55 28
2
Loblolly and shortleaf pine
0.50 55 28
3
Other yellow pines
0.56 45 25
4
Eastern white and red pine
0.54 45 24
5
Jack pine
0.55 43 24
6
Spruce and balsam fir
0.54 43 23
7
Eastern hemlock
0.48 51 24
8
Cypress
0.48 57 26
9
Other softwoods
0.56 44 25
10
Select white oaks
0.63 58 36
11
Select red oaks
0.56 65 36
12
Other white oaks
0.63 58 36
13
Other red oaks
0.56 65 36
14
Hickory
0.61 62 38
15
Yellow birch
0.56 61 34
16
Hard maple
0.56 63 35
17
Soft maple
0.56 55 31
18
Beech
0.59 59 35
19
Sweetgum
0.48 60 29
20
Tupelo and black gum
0.50 58 29
21
Ash
0.60 52 31
22
Cottonwood and aspen
0.49 51 25
23
Basswood
0.50 43 21
24
Yellow-poplar
0.48 52 25
25
Black walnut
0.56 53 30
26
Other soft hardwoods
0.56 55 31
27
Other hard hardwoods
0.56 63 35
28
Noncommercial species
0.56 50 28
===============================================================================
*
Multiply green weight times this number to derive approximate dry weight
per cubic foot.
Factors
were derived from information synthesized in:
Smith,
W. Brad. 1991. Assessing Removals for North Central Forest Inventories. USDA Forest Service. North Central Forest
Experiment Station, Research Paper
NC-299.
48p.