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| Full name | Description |
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| c | Percent crop | Percentage of total Multi Resolution Landscape Characterization (MRLC) land cover in row crops types |
| p | Percent pasture | Percentage of total MRLC land cover in pasture/grassland types |
| b | Percent barren | Percentage of total MRLC land cover in barren types (quarries, strip mines) |
| u | Percent urban | Percentage of total MRLC land cover in urban types (commercial, high- and low-density residential) |
| f | Percent forest | Percentage of total MRLC land cover in forest types |
| q | Percent wetlands | Percentage of total MRLC land cover in wetland types |
| w | Percent water | Percentage of total MRLC land cover in water types |
| ah | Agriculture on highly erodible soils | Percent of total area in agriculture (row crops + pasture) on highly erodible soils (STATSGO K-factor 0.4) |
| az | Agriculture on slopes >3% | Percent of total area in agriculture (row crops + pasture) on slopes greater than 3 percent |
| azh | Agriculture on slopes >3% with highly erodible soils | Percent of total area in agriculture (row crops + pasture) on slopes greater than 3 percent with highly erodible soils (STATSGO K-factor 0.4) |
| am | Agriculture on moderately erodible soils | Percent of total area in agriculture (row crops + pasture) on moderately erodible soils (STATSGO K-factor 0.2 and <0.4) |
| azm | Agriculture on slopes >3% with moderately erodible soils | Percent of total area in agriculture (row crops + pasture) on slopes greater than 3 percent with moderately erodible soils (STATSGO K-factor 0.2 and <0.4) |
| bzh | Barren on slopes >3% and highly erodible soils | Percent of total area in barren cover types on slopes greater than 3 percent with highly erodible soils (STATSGO K-factor 0.4) |
| bzm | Barren on slopes >3% with moderately erodible soils | Barren on slopes >3% with moderately erodible soils |
| cz | Crops on slopes >3% | Percent of total area in row crops on slopes greater than 3 percent |
| czm | Crops on slopes >3% with moderately erodible soils | Percent of total area in row crops on slopes greater than 3 percent with moderately erodible soils (STATSGO K-factor 0.2 and <0.4) |
| pz | Pasture on slopes >3% | Hay pasture on slope greater than 3 percent |
| e | Erodible soils | Percent of total area with highly erodible soils (STATSCO K-factor <0.4) |
| z | Slope >3% | Percent of total area with slope greater than 3 percent |
| x | Mean slope | Mean or average percent slope |
| s | Standard deviation slope | Standard deviation of percent slope |
| zm | Moderately erodible soils on slopes >3% | Percent of total area with moderately erodible soils (STATSGO K-factor 0.2 and <0.4) and slope greater than 3 percent |
| d | Stream Density | Stream density as total length of streams from USGS TIGER data divided by watershed area |
| v | Total road length within 30 meters of streams | Total length of types 0 through 4 roads and railroads/sidings within 30 m of streams from USGS TIGER data divided by total stream length |
| r | Total road length in watershed | Total length of types 0 through 4 roads from USGS TIGER data divided by watershed area |
| t | Total power, pipe, and telephone line length in watershed | Total length of power, pipe and telephone lines from USGS TIGER data divided by watershed area |
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