United States Department of Agriculture
Natural Resources Conservation Service		 Minnesota Go to Accessibility Information
Skip to Page Content





Minnesota Changes in Wind Erosion Equation (WEQ) Erosion Rate in Relation to Soil Loss Tolerance (T) on Cultivated Cropland by Planning Basin 1982-1997

Estimates in thousands of acres.  Example:  7.7 = 7,700 acres.

Data for 1982

Basin Name Other est Other err 0 <= VALUE <= 1 est 0 <= VALUE <= 1 err 1 < VALUE <= 2 est 1 < VALUE <= 2 err 2 < VALUE <= 4 est 2 < VALUE <= 4 err 4 < VALUE <= 400 est 4 < VALUE <= 400 err Total est Total err
Other 0 0 0 0 0 0 0 0 0 0 0 0
Lake Superior Basin 0 0 7.7 5.467 0 0 0 0 0 0 7.7 5.467
Mississippi Headwaters 0 0 2160.9 81.305 551.8 42.727 351.3 40.839 55.6 11.036 3119.6 88.637
St. Croix River Basin 0 0 316.3 26.44 29.8 6.578 6.3 3.33 1.4 1.4 353.8 26.416
Upper Mississippi-Black-Root 0 0 2781.6 51.641 99.3 10.43 52 12 4.3 2.481 2937.2 52.53
Minnesota River Basin 0 0 5590.2 102.592 2241 82.836 909.5 51.174 111 15.826 8851.7 106.667
Red River Basin 0 0 1193.1 82.493 1289 78.986 2570.4 98.683 726.5 70.326 5779 126.166
Rainy River Basin 0 0 79.7 26.045 24.8 11.339 54.3 17.622 20.4 9.936 179.2 35.359
Total 0 0 12129.5 168.323 4235.7 125.941 3943.8 118.673 919.2 73.845 21228.2 195.738

 

Data for 1987

Basin Name Other est Other err 0 <= VALUE <= 1 est 0 <= VALUE <= 1 err 1 < VALUE <= 2 est 1 < VALUE <= 2 err 2 < VALUE <= 4 est 2 < VALUE <= 4 err 4 < VALUE <= 400 est 4 < VALUE <= 400 err Total est Total err
Other 0 0 0 0 0 0 0 0 0 0 0 0
Lake Superior Basin 0 0 28.3 11.495 0 0 0 0 0 0 28.3 11.495
Mississippi Headwaters 0 0 2015.6 83.639 665.8 44.868 414 39.739 108.4 22.185 3203.8 94.719
St. Croix River Basin 0 0 272.3 22.543 44.3 7.257 8.3 3.992 1.4 1.4 326.3 23.847
Upper Mississippi-Black-Root 0 0 2741.1 49.925 118.5 12.705 53.7 10.572 6.4 3.166 2919.7 54.163
Minnesota River Basin 0 0 5034.9 96.361 2442.8 83.484 1142.1 55.714 171.7 22.237 8791.5 109.473
Red River Basin 0 0 1063.1 69.42 1115.4 74.006 2328.3 95.245 1130.5 70.212 5637.3 136.792
Rainy River Basin 0 0 26.2 13.899 0 0 58.2 17.257 35.2 12.768 119.6 25.745
Total 0 0 11181.5 156.65 4386.8 122.075 4004.6 117.6 1453.6 77.14 21026.5 206.343

 

Data for 1992

Basin Name Other est Other err 0 <= VALUE <= 1 est 0 <= VALUE <= 1 err 1 < VALUE <= 2 est 1 < VALUE <= 2 err 2 < VALUE <= 4 est 2 < VALUE <= 4 err 4 < VALUE <= 400 est 4 < VALUE <= 400 err Total est Total err
Other 0 0 0 0 0 0 0 0 0 0 0 0
Lake Superior Basin 0 0 15.5 12.5 0 0 0 0 0 0 15.5 12.5
Mississippi Headwaters 0 0 1793.8 76.495 528.6 40.206 481.1 44.667 88 20.239 2891.5 90.213
St. Croix River Basin 0 0 228.2 24.103 23.3 5.339 22.5 5.201 3.8 2.205 277.8 26.7
Upper Mississippi-Black-Root 0 0 2548.9 51.464 120.4 17.719 42.7 7.465 3 1.737 2715 55.427
Minnesota River Basin 0 0 5027.2 100.346 2203.7 70.734 1160.6 62.293 72.3 13.619 8463.8 110.213
Red River Basin 0 0 825.2 64.45 1274.5 72.548 2319.3 96.051 725.3 73.021 5144.3 129.327
Rainy River Basin 0 0 38 16.741 13.5 6.265 31.8 10.038 28.2 11.433 111.5 24.661
Total 0 0 10476.8 154.274 4164 113.791 4058 120.157 920.6 77.881 19619.4 203.306

 

Data for 1997

Basin Name Other est Other err 0 <= VALUE <= 1 est 0 <= VALUE <= 1 err 1 < VALUE <= 2 est 1 < VALUE <= 2 err 2 < VALUE <= 4 est 2 < VALUE <= 4 err 4 < VALUE <= 400 est 4 < VALUE <= 400 err Total est Total err
Other 0 0 0 0 0 0 0 0 0 0 0 0
Lake Superior Basin 0 0 14.8 10.878 0 0 0 0 0 0 14.8 10.878
Mississippi Headwaters 0 0 1875.8 89.298 523.5 45.218 333.5 38.148 30.5 9.331 2763.3 92.008
St. Croix River Basin 0 0 218.4 23.213 39 10.675 6.9 3.407 2.7 1.91 267 25.26
Upper Mississippi-Black-Root 0 0 2623.8 50.734 122.2 15.005 55 11.156 2.7 2.184 2803.7 56.019
Minnesota River Basin 0 0 5832.7 115.979 1826.2 66.439 883.4 53.096 52.8 12.82 8595.1 109.464
Red River Basin 0 0 817.2 58.203 1389.6 79.514 2131.8 101.817 848.8 63.364 5187.4 128.523
Rainy River Basin 0 0 39.2 17.1 14.7 6.912 28.6 9.384 17.4 8.009 99.9 26.954
Total 0 0 11421.9 170.295 3915.2 116.699 3439.2 118.281 954.9 65.655 19731.2 201.727


Notes: Total estimates may be adjusted to account for rounding. The error referred to in the table is the standard error of the estimate. You can obtain the margin of error at the 95% confidence limit by multiplying the error by 1.96.



< Back to NRI