Evaluation of the Soil Vulnerability Index for artificially drained cropland across eight Conservation Effects Assessment Project watersheds

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Figure 1
Conservation Effects Assessment Project (CEAP) Watershed Assessment Studies sites used for the evaluation of the USDA Natural Resources Conservation Service proposed Soil Vulnerability Index for artificially drained cropland.
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Figure 2
Vulnerabilities to runoff, leaching, and leaching under artificial drainage as classified by the Soil Vulnerability Index (SVI) at surface drained sites: (a, d, h, k) SVI runoff component, (b, e, i, l) SVI leaching component when artificial drainage is not considered, and (c, f, j, m) SVI leaching component when artificial drainage is considered. (g) Map for the Upper Choptank watershed differentiates cropland with mineral and organic soils.
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Figure 3
Vulnerabilities to runoff, leaching, and leaching under artificial drainage as classified by the Soil Vulnerability Index (SVI) in watersheds characterized by the presence of subsurface drains: (a, d, g, j) SVI runoff component, (b, e, h, k) SVI leaching component when artificial drainage is not considered, and (c, f, i, l) SVI leaching component when artificial drainage is considered.