Potential Priority Watersheds for Protection of Water Quality

Documentation Table

Map # Map title Description of data included in watershed database Variable name Average value
1717 Percolation Factor (for cultivated cropland and CRP, 1992) Average annual percolation in inches per year per watershed (without adjustment for irrigation) avgpf 4.9783281
1718 Annual Runoff Factor (for cultivated cropland and CRP, 1992) Average annual runoff in inches per year per watershed avgrf 3.612975
1646 Runoff Factor for Two Months Following Planting (for corn, cotton, barley, sheat, soybeans, sorghum, and rics, 1992) Average 2-month runoff in inches per year per watershed avgtmrf 0.6693796
2124 Loss of Soil from Farm Fields, Sheet and rill Erosion (for cultivated and non-cultivated cropland and CRP in 1992) Tons of soil loss from sheet and rill erosion per watershed in 1992 eros 511411
2125 Manure Nitrogen Loadings from confined Livestock (based on 1992 livestock data from the Agriculture Census) Pounds of manure nitrogen per watershed in 1992. mannit 1048009
2127 Manure Nitrogen Runoff Vulnerability Index Watershed index score for runoff potential of manure nitrogen, 1992 mannrun 3841757
2126 Manure Nitrogen Leaching Vulnerability Index Watershed index score for leaching potential of manure nitrogen, 1992 mannlea 9176605
2128 Nitrogen Loadings from Commercial Fertilizer Appications, Adjusted for Crop Uptake (for corn, cotton, wheat, soybeans, sorghum, and rice, 1992) Pounds of excess nitrogen per watershed comnit 3460519
2135 Commercial Nitrogen Fertilizer Runoff Vulnerability Index (for corn, cotton, wheat, soybeans, sorghum, and rice, 1992) Watershed index score for runoff potential of commercial nitrogen fertilizer, 1992 comnrun 4066817
2129 Commercial Nitrogen Fertilizer Leaching Vulnerability Index (for corn, cotton, wheat, soybeans, sorghum, and rice, 1992) Watershed index score for leaching potential of commercial nitrogen fertilizer, 1992 comnlea 24866564
1556 Pounds of Pesticides Applied to Crops by Watershed Pounds of pesticides (active ingredient) applied per watershed per year lbspest 288969
2271 Potential Pesticide Dissolved Runoff Loss from Farm Fields (for corn, cotton, barley, wheat, soybeans, sorghum, oats, peanuts, potatoes, beets, tobacco, sunflowers, and rice, 1992) Pounds of pesticides (active ingredient) leaving the field through runoff per watershed per year pestrun 7197.73
2269 Potential Pesticide Leaching Loss from Farm Fields (for corn, cotton, barley, wheat, soybeans, sorghum, oats, peanuts, potatoes, beets, tobacco, sunflowers, and rice, 1992) Pounds of pesticides (active ingredient) leaving the field through leaching per watershed per year pestlea 1709.41
1737 Watersheds with a High Potential for Soil, Pesticide, and Nitrogen Runoff Watershed ranking (1-4): 1=not in top 400 watersheds, 2=soil or pesticides or nitrogen, 3=any 2 of pesticides, soil, or nitrogen, 4=soil, pesticides, and nitrogen priorlea ---
1735 Watersheds with a High Potential for Pesticide and Nitrogen Leaching Watershed ranking (1-3): 1=not in top 400 watersheds, 2=pesticides or nitrogen, 3=pesticides and nitrogen priorrun ---

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