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Summary Report, 1997 National Resources Inventory, Revised December 2000 - Table 13
Tables
Table 13 - Estimated average annual wind erosion in relation to T value on nonfederal
rural land, by land cover/use and year (data per 1,000 acres)
Land cover/use |
Year |
Wind erosion |
Total |
≤ T |
> T ≤ 2T |
> 2T ≤ 3T |
> 3T ≤ 4T |
> 4T ≤ 5T |
> 5T |
Cultivated Cropland |
1982 |
298,787.1 |
34,740.2 |
17,867.0 |
8,962.4 |
4,744.8 |
11,348.0 |
376,449.5 |
1987 |
286,272.3 |
35,395.8 |
16,937.9 |
8,930.5 |
4,973.5 |
10,454.8 |
362,964.8 |
1992 |
282,586.3 |
25,118.4 |
11,168.7 |
5,916.7 |
3,152.9 |
7,297.2 |
335,240.2 |
1997 |
279,458.3 |
22,690.8 |
10,150.7 |
5,430.0 |
2,912.8 |
6,141.1 |
326,783.7 |
Noncultivated Cropland |
1982 |
43,741.8 |
337.2 |
153.9 |
73.0 |
49.2 |
149.4 |
44,504.5 |
1987 |
42,736.1 |
405.1 |
207.7 |
111.3 |
62.1 |
152.0 |
43,674.3 |
1992 |
46,422.2 |
349.6 |
113.9 |
44.0 |
43.3 |
102.0 |
47,075.0 |
1997 |
49,708.2 |
234.5 |
118.8 |
41.7 |
27.6 |
83.4 |
50,214.2 |
Total cropland |
1982 |
342,528.9 |
35,077.4 |
18,020.9 |
9,035.4 |
4,794.0 |
11,497.4 |
420,954.0 |
1987 |
329,008.4 |
35,800.9 |
17,145.6 |
9,041.8 |
5,035.6 |
10,606.8 |
406,639.1 |
1992 |
329,008.5 |
25,468.0 |
11,282.6 |
5,960.7 |
3,196.2 |
7,399.2 |
382,315.2 |
1997 |
329,166.5 |
22,925.3 |
10,269.5 |
5,471.7 |
2,940.4 |
6,224.5 |
376,997.9 |
CRP land |
1982 |
---- |
---- |
---- |
---- |
---- |
---- |
---- |
1987 |
9,342.5 |
1,326.3 |
939.9 |
487.0 |
458.7 |
1,246.7 |
13,801.1 |
1992 |
32,773.3 |
737.0 |
184.0 |
96.8 |
53.9 |
197.1 |
34,042.1 |
1997 |
32,274.9 |
230.1 |
53.5 |
20.2 |
28.8 |
88.5 |
32,696.0 |
Pastureland |
1982 |
131,332.9 |
294.1 |
152.7 |
54.3 |
31.9 |
140.1 |
132,006.0 |
1987 |
127,453.0 |
275.6 |
150.1 |
53.1 |
55.8 |
126.8 |
128,114.4 |
1992 |
125,477.9 |
286.6 |
86.0 |
65.3 |
26.7 |
105.0 |
126,047.5 |
1997 |
119,524.3 |
222.9 |
95.5 |
39.4 |
25.0 |
84.8 |
119,991.9 |
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