Weighted average gross soil erosion (A value) for the western USA

Dec 27, 2010 (Last modified May 14, 2011)
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Description:
Derived from 1:250,000-scale USGS HUC 8 boundaries, this dataset represents the soil erodibility for the western USA. A weighted average was created for each HUC 8 watershed using approximate EMAP physical habitat substrate criteria. The values are based on the Universal Soil Loss Equation: A =R x K x LS x C x P, where A = potential long term average annual soil loss in tons per acre per year, R = rainfall and runoff factor by geographic location, K = soil erodibility factor, LS = slope length-gradient factor, crop/vegetation and management factor, and P = support practice factor. This dataset contains attribute fields with values for each factor.
Data Provided By:
US EPA/ORD/NERL/ESD Landscape Ecology Branch, RUSLE
http://www.epa.gov/esd/land-sci/emap_west_browser/pages/wemap_download.htm
Content date:
not specified
Spatial Resolution:
1:250,000
Contact Organization:
US EPA/ORD/NERL/ESD Landscape Ecology Branch
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Creative Commons LicenseThis work is licensed under a Creative Commons Attribution 3.0 License.
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Tags:
watershed, emap-west, huc, hydrologic units, soil and landform, usle, metrics, rusle
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Conservation Biology Institute

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