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Table 4-8  
Estimated Average Annual Wind Erosion on Cropland, by Major Land Resource Area, 1982 and 1987 (in Tons/Acre/Year)
  Cultivated Noncultivated Total Cropland
 
  Irrigated Nonirrigated Total Irrigated Nonirrigated Total
Big and Little Wood River footslopes and plain
1982 1.5 0.4 0.9 0 1.6 1.2 1
1987 5.4 2.1 3.7 0 0.1 0.1 2.8
Change 3.8 1.7 2.8 0 -1.5 -1.1 1.8
Eastern Idaho plateau
1982 2.5 4.6 4.2 0.1 0 0 3.9
1987 3.8 4.1 4 0.1 0.3 0.2 3.7
Change 1.3 -0.5 -0.1 0 0.2 0.1 -0.1
Great Salt Lake area
1982 1.8 1.5 1.5 0 0 0 1.3
1987 1.9 1.4 1.5 0 0 0 1.2
Change 0.1 -0.1 0 0 0 0 0
Lost River Range and valleys
1982 6.6 0 6.5 0.4 0 0.4 3.8
1987 5.5 17.4 6.2 0.5 0.6 0.5 3.2
Change -1.1 17.3 -0.2 0 0.6 0 -0.6
Northern Rocky Mountains
1982 0.1 0.1 0.1 0 0 0 0.1
1987 0.1 0.3 0.3 0 0 0 0.2
Change 0 0.2 0.1 0 0 0 0
Northern Rocky Mountain valleys
1982 0 0 0 0 0 0 0
1987 0 0.4 0.3 0 0 0 0.2
Change 0 0.3 0.2 0 0 0 0.1
Owyhee high plateau
1982 0 0 0 0 0 0 0
1987 1.4 0 1.1 0 0 0 1.1
Change 1.3 0 1.1 0 0 0 1.1
Palouse and Nez Perce prairies
1982 0 0.6 0.6 0 0 0 0.6
1987 0 0.8 0.8 0 0 0 0.8
Change 0 0.2 0.2 0 0 0 0.1
Snake River Plain
1982 2 4.8 2.1 0.4 0 0.4 1.9
1987 3 18.4 4.1 0.1 0 0.1 3.5
Change 1 13.5 2 -0.3 0 -0.3 1.6
Snake River Plain, Central
1982 5.2 3.5 5.1 0.5 0 0.5 4.7
1987 6.1 4.1 6.1 0 0 0 5.6
Change 0.9 0.5 0.9 -0.4 0 -0.4 0.9
Snake River Plain, Upper
1982 8.8 8.8 8.8 0 0 0 7.4
1987 9.7 10.6 9.9 0.4 0 0.4 8.8
Change 0.9 1.7 1.1 0.4 0 0.4 1.3
Upper Snake River lava plain and hills
1982 0.1 0.5 0.2 0 0 0 0.1
1987 0.1 0.1 0.1 0 0 0 0
Change 0 -0.3 -0.1 0 0 0 0
Wasatch and Uinta Mountains
1982 0.5 0.7 0.6 0 0 0 0.3
1987 1.3 0.6 0.8 0 0 0 0.5
Change 0.8 0 0.1 0 0 0 0.1
Total (average)
1982 5 2.6 3.9 0.3 0.2 0.2 3.4
1987 5.9 3.3 4.6 0.2 0.1 0.2 3.9
Change 0.9 0.6 0.7 0 -0.1 0 0.5
Source: U.S. Soil Conservation Service, 1982-1987 National Resources Inventory, December 1989.

Compiled by: Diane Prorak, data input assisted by: Robert Anton-Erik
Contact: Lily Wai

 

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