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Research Project:
Integrated Effects of Management, Land Use and Climate on Regional Water Resources
Location:
Great Plains Agroclimate and Natural Resources Research Unit
Project Number: 6218-13000-009-00
Project Type:
Appropriated
Start Date: Feb 28, 2002
End Date: Feb 27, 2007
Objective:
To quantify the integrated effects of agricultural land use, land management and climatic variations on regional surface water supplies, infiltration and groundwater recharge to develop strategies to better meet the water quantity and quality needs of a variety of water users; and to monitor and predict root zone soil water content at regional scales to more effectively manage water resources by integrating remote sensing estimates of surface soil water content, geo-spatial data sets and modeling.
Approach:
Methodologies to estimate regional surface soil and ground water resources will be based on a combination of numerical simulation models, historical climate, stream gage, and groundwater level data bases, field experiments, and remote sensing. Data from experimental watersheds ranging in size from a few hectares to several hundred square kilometers will be used to calibrate and validate the simulation models. Changes in land use and land management will be combined with historical climate variability data and/or published outcomes of expected changes in precipitation and temperature due to climate change to quantify the possible impacts on regional surface water and groundwater resources at small watershed to regional scales. Remotely sensed estimates of near-surface soil water content will be combined in a soil-vegetation-atmosphere model with other geo-spatial data sets such as land cover, soil type, and rainfall to infer water content in the soil profile.
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