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United States Department of Agriculture

Agricultural Research Service

Research Project: Geographical Information System Database for Conservation Effects Assessment in the Upper Suwannee River Basin

Location: Southeast Watershed Research

Project Number: 6048-13000-026-15-S
Project Type: Non-Assistance Cooperative Agreement

Start Date: Jun 1, 2014
End Date: Jun 30, 2016

To develop a geographical database for the assessment of conservation practices within the Upper Suwannee River Basin. The geographical database will provide data for evaluation of the natural resource conditions in the watershed and planning future research. The goal of the project is to evaluate the impacts of agricultural practices on natural resources within the Upper Suwannee River Basin in support of the Southeast Watershed Research Laboratory (SEWRL) Project ‘Enhancing environmental quality and ecosystem services in southeastern U.S. coastal plain agricultural watersheds, the SEWRL Conservation Practice Assessment (CEAP) project, and the Gulf Atlantic Long Term Agro-ecosystem Research site.

A comprehensive geographical information system (GIS) database for the Upper Suwannee River Basin will be developed. For purposes of this document, this area is defined as the Withlacoochee River at the juncture of the Little, Withlacoochee, and Okapilco drainage basins (@30 45 08.54N, 83 29 03.46W) and the Alapaha River drainage basin to the Berrien and Lanier County border (@31 08 47.86N, 83 02 17.60W). The geographical database will include but not be limited to the following ArcView compatible GIS layers projected in State Plane NAD 1983: • Surface water hydrography with watershed boundaries, stream delineations, and known major water bodies • Digital Elevation Models of highest resolution available for the basins • Contour Maps of appropriate resolution • Surface Drainage Watershed boundaries • Digitized SSURGO level soils GIS layers • Current and historical land use and land cover • Geographic coordinates for known groundwater withdrawals, water discharge points, sampling points, climate stations, research instrumentation, point discharge • Geographic coordinates and extent of irrigation systems within the basin • Aquifer characteristics (confined, unconfined, semi-confined) It is anticipated that most GIS coverage’s will be developed through existing data sources. Others may involve interpretation of digital images. A GIS library will be developed and metadata on the GIS coverage’s written. The library will establish a roadmap for identifying the available GIS layers. Subsequent analysis of the data will be conducted jointly between the cooperator and the SEWRL and will include examination of spatial relationships among: • agricultural land use/land cover and critical areas such as wetlands and riparian zones • water quality parameters and agricultural density • groundwater levels and irrigation density • soil characteristics and streamflow

Last Modified: 10/17/2017
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