| Year | Sheet and rill erosion | Wind erosion | ||||
| Cropland | CRP |
Pastureland
|
Cropland | CRP |
Pastureland
|
|
| tons per acre per year | ||||||
| 1982 | 4.0 | na | 1.1 | 3.3 | na | 0.1 |
| 1987 | 3.7 | 2.0 | 1.0 | 3.2 | 6.8 | 0.1 |
| 1992 | 3.1 | 0.6 | 1.0 | 2.4 | 0.6 | 0.1 |
| 1997 | 2.8 | 0.4 | 0.9 | 2.2 | 0.3 | 0.1 |
Source: U.S. Department of Agriculture, National Resource Conservation Service, Summary Report 1997 National Resources Inventory (USDA, NRCS, Washington, DC, revised as of December 2000).
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