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Display category headings
Research Project:
Surface Irrigation Water Quality and Management
Location:
Irrigation and Water Quality Research
Project Number: 5344-13000-013-00
Project Type:
Appropriated
Start Date: Jan 12, 2002
End Date: Jan 11, 2007
Objective:
Guide in design/operation of surface irrigation systems, both traditional and innovative with goals of simulating the transport/fate of water sediments, and nutrients such as phosphorus and nitrogen by irrigation in furrows, border strips, and basins of various types along with attendant field studies; fertigation recommendations; software for presenting overviews of simulalations to aid in the search for an optimum; software to assist in evaluating extant field conditions.Was 5344-13000-010-00D (12/01)
Approach:
As much as technically feasible, the common thread among the various facets of the project is modeling. The aim is to put design of surface irrigation systems and their operation on a par with other engineering disciplines with reliance on multiple analyses (simulations) with trial values of the design variables in the search for an optimum. Modeling is to be based as far as practicable on basic laws of physics and chemistry with necessary empirical relationships held to a minimum. Essential field studies, inhouse and by cooperating laboratories, are intended to calibrate and validate numerical models of the scenarios of interest. Where the modeling effort is insufficient, timely development of management guidelines will be based primarily on field studies. The performance indicators of good design and management range from effective utilization of available water supplies, to reduction of off-site discharges of sediments, phosphorus, and nitrogen.
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