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Document Sample
RUSLE Calculator
Inputs (Required)
County Aitkin
Assigned Soil Erodability Factor (K) 0.25
Land Use Cropped Agricultural Land
Percent Slope (ps) 2%
Slope Length (l) (feet) 15 Feet
Cover & Management Factor (C) 0.25
Support Practice Factor (P) 0.25
Calculated Values
Rainfall & Runoff Factor (R) 90
Corrected Soil Erodability Factor (K) 0.25
Slope Length & Steepness (LS) 0.17
Result
Predicted Annual Soil Loss 0.24 Tons/Acre/Year
CNTY R C Fact K
County Name FIPS EI 10 Fact Zone Adjust
Aitkin 1 60 90 86 E 1
Anoka 3 60 110 100 B/C 0.9361
Becker 5 60 80 86 E 1
Beltrami 7 50 75 86 B 1
Benton 9 60 95 86 E 1
Big Stone 11 80 90 86 E 1
Blue Earth 13 80 120 100 B/C 0.9361
Brown 15 80 115 100 B/C 0.9361
Carlton 17 60 95 86 E 1
Carver 19 70 110 100 B/C 0.9361
Cass 21 50 85 86 E 1
Chippewa 23 80 95 100 B/C 0.9361
Chisago 25 70 110 100 B/C 0.9361
Clay 27 70 75 86 E 1
Clearwater 29 50 75 86 B 1
Cook 31 50 90 86 E 1
Cottonwood 33 80 120 100 B/C 0.9361
Crow Wing 35 50 90 86 E 1
Dakota 37 80 125 100 B/C 0.9361
Dodge 39 90 140 100 B/C 0.9361
Douglas 41 70 90 86 E 1
Faribault 43 80 135 100 B/C 0.9361
Fillmore 45 110 155 100 B/C 0.9361
Freeborn 47 80 140 100 B/C 0.9361
Goodhue 49 90 140 100 B/C 0.9361
Grant 51 80 85 86 E 1
Hennepin 53 70 110 100 B/C 0.9361
Houston 55 120 160 100 B/C 0.9361
Hubbard 57 50 85 86 E 1
Isanti 59 60 100 100 B/C 0.9361
Itasca 61 50 85 86 E 1
Jackson 63 80 125 100 B/C 0.9361
Kanabec 65 60 100 86 E 1
Kandiyohi 67 70 95 100 B/C 0.9361
Kittson 69 40 65 86 B 1
Koochiching 71 40 75 86 B 1
Lac Qui Parle 73 80 90 86 E 1
Lake 75 50 90 86 E 1
Lake of the Woods 77 40 70 86 B 1
Le Sueur 79 70 120 100 B/C 0.9361
Lincoln 81 80 105 100 B/C 0.9361
Lyon 83 80 105 100 B/C 0.9361
McLeod 85 70 105 100 B/C 0.9361
Mahnomen 87 60 75 86 E 1
Marshall 89 50 65 86 B 1
Martin 91 80 130 100 B/C 0.9361
Meeker 93 70 95 100 B/C 0.9361
Mille Lacs 95 60 95 86 E 1
Morrison 97 60 90 86 E 1
Mower 99 100 150 100 B/C 0.9361
Murray 101 80 115 100 B/C 0.9361
Nicollet 103 70 115 100 B/C 0.9361
Nobles 105 80 120 100 B/C 0.9361
Norman 107 60 70 86 E 1
Olmsted 109 100 150 100 B/C 0.9361
Otter Tail 111 70 85 86 E 1
Pennington 113 50 65 86 B 1
Pine 115 60 100 86 E 1
Pipestone 117 80 110 100 B/C 0.9361
Polk (East) 119 50 70 86 B 1
Polk (West) 119 50 65 86 B 1
Pope 121 70 90 86 E 1
Ramsey 123 70 115 100 B/C 0.9361
Red Lake 125 50 65 86 B 1
Redwood 127 80 110 100 B/C 0.9361
Renville 129 80 105 100 B/C 0.9361
Rice 131 80 130 100 B/C 0.9361
Rock 133 80 115 100 B/C 0.9361
Roseau 135 40 65 86 B 1
St. Louis 137 50 90 86 E 1
Scott 139 70 120 100 B/C 0.9361
Sherburne 141 60 95 100 B/C 0.9361
Sibley 143 70 110 100 B/C 0.9361
Stearns 145 60 90 86 E 1
Steele 147 80 135 100 B/C 0.9361
Stevens 149 80 90 86 E 1
Swift 151 80 90 86 E 1
Todd 153 60 90 86 E 1
Traverse 155 80 85 86 E 1
Wabasha 157 100 150 100 B/C 0.9361
Wadena 159 60 85 86 E 1
Waseca 161 80 130 100 B/C 0.9361
Washington 163 80 120 100 B/C 0.9361
Watonwan 165 80 120 100 B/C 0.9361
Wilkin 167 80 80 86 E 1
Winona 169 110 155 100 B/C 0.9361
Wright 171 60 100 100 B/C 0.9361
Yellow Medicine 173 80 95 100 B/C 0.9361
ps q (deg) q (rad) SINq/0.0896 3sinq0.8 + .56 b0 b Factor b m Land Use b Factor
2.0 1.1458 0.0200 0.2232 0.6912 0.3229 1.0000 0.3229 0.2441 Pasture & Rangeland 0.5
λ λ - ps category Cropped Agricultural Land 1
15.0 1L S3 S15 S LS Construction & Highly Disturbed 2
λ ≥ 15 ft ps < 9% 1 0.6805 0.2460 0.1674 TRUE
λ ≥ 15 ft ps ≥ 9% 2 0.6805 -0.1641 -0.1117 FALSE
3ft ≤λ< 15 ft ps < 9% 3 0.6805 0.2460 0.1674 FALSE
3ft ≤λ< 15 ft ps ≥ 9% 4 0.6805 0.6912 -0.1641 #NUM! FALSE
8db487d1-3a27-4f4f-bcd5-1b2034fc862d.xls Page 4
ps q (deg) q (rad) SINq/0.0896 3sinq0.8 + .56 b0 b Factor b m
2.0 1.1458 0.0200 0.2232 0.6912 0.3229 1.0000 0.3229 0.2441
λ λ - ps category
15.0 1L S3 S15 S LS
λ ≥ 15 ft ps < 9% 1 0.6805 0.2460 0.1674
λ ≥ 15 ft ps ≥ 9% 2 0.6805 -0.1641 -0.1117
3ft ≤λ< 15 ft ps < 9% 3 0.6805 0.2460 0.1674
3ft ≤λ< 15 ft ps ≥ 9% 4 0.6805 0.6912 -0.1641 #NUM!
8db487d1-3a27-4f4f-bcd5-1b2034fc862d.xls Page 5
ps q (deg) q (rad) SINq/0.0896 3sinq0.8 + .56 b0 b Factor b m
2.0 1.1458 0.0200 0.2232 0.6912 0.3229 1.0000 0.3229 0.2441
λ λ - ps category
15.0 1L S3 S15 S LS
λ ≥ 15 ft ps < 9% 1 0.6805 0.2460 0.1674
λ ≥ 15 ft ps ≥ 9% 2 0.6805 -0.1641 -0.1117
3ft ≤λ< 15 ft ps < 9% 3 0.6805 0.2460 0.1674
3ft ≤λ< 15 ft ps ≥ 9% 4 0.6805 0.6912 -0.1641 #NUM!
8db487d1-3a27-4f4f-bcd5-1b2034fc862d.xls Page 6
LS Calculator for Cropped Agricultural Land (Table 2) 3<l<15 l>15
(enter slope
% slope length in (enter slope length
slope (degrees) slope (rad) l= 5 gray box) l = 100 in gray box)
ps q q SINq/0.0896 3sinq0.8 + .56 b m L S3 S15 S LS L S LS
0.2 0.11459141 0.002 0.022321384 0.580794312 0.038432511 0.037010119 0.94 0.05 0.05 1.01 0.05 0.05
0.5 0.28647651 0.00499996 0.055802874 0.603280564 0.092499041 0.084667389 0.88 0.08 0.07 1.03 0.08 0.09
1.0 0.5729387 0.00999967 0.111601563 0.635353579 0.175652686 0.149408655 0.79 0.14 0.11 1.05 0.14 0.14
2.0 1.14576284 0.01999733 0.223169656 0.691182462 0.322880959 0.244074085 0.68 0.25 0.17 1.08 0.25 0.27
3.0 1.718358 0.029991 0.334670861 0.741410317 0.451397631 0.311008935 0.61 0.35 0.22 1.10 0.35 0.39
ps<9 4.0 2.29061004 0.03997869 0.446071857 0.788292436 0.565871035 0.361377803 0.57 0.46 0.26 1.12 0.46 0.52
5.0 2.86240523 0.0499584 0.557339475 0.832812023 0.669226019 0.400919954 0.53 0.57 0.30 1.14 0.57 0.65
6.0 3.43363036 0.05992816 0.668440745 0.875513535 0.763484193 0.432940764 0.51 0.68 0.34 1.15 0.68 0.78
7.0 4.00417294 0.069886 0.779342943 0.916738965 0.850125251 0.459496053 0.48 0.78 0.38 1.16 0.78 0.91
8.0 4.57392126 0.07982999 0.890013642 0.95672082 0.930275189 0.481939153 0.47 0.89 0.42 1.17 0.89 1.04
10.0 5.71059314 0.09966865 1.110532578 1.033579293 1.074453199 0.517945259 0.44 1.03 1.17 0.48 1.18 1.17 1.38
12.0 6.84277341 0.11942893 1.329745766 1.106993991 1.201222208 0.545706928 0.42 1.11 1.50 0.52 1.19 1.50 1.79
14.0 7.96961039 0.13909594 1.547408979 1.17752103 1.314124283 0.567871092 0.41 1.18 1.83 0.55 1.20 1.83 2.19
16.0 9.09027692 0.15865526 1.763286843 1.245529323 1.415692759 0.586040072 0.40 1.25 2.15 0.59 1.21 2.15 2.60
20.0 11.3099325 0.19739556 2.188796151 1.374951785 1.591907567 0.614183772 0.38 1.37 2.79 0.65 1.22 2.79 3.40
ps>9 25.0 14.0362435 0.24497866 2.706870815 1.525921174 1.773925719 0.63950008 0.36 1.53 3.57 0.73 1.23 3.57 4.39
30.0 16.6992442 0.29145679 3.207007651 1.666235673 1.924702311 0.65808486 0.35 1.67 4.33 0.80 1.23 4.33 5.34
40.0 21.8014095 0.38050638 4.144985227 1.918269823 2.160793636 0.683623762 0.34 1.92 5.74 0.92 1.24 5.74 7.14
50.0 26.5650512 0.46364761 4.991223164 2.135916683 2.336806115 0.700312225 0.33 2.14 7.01 1.03 1.25 7.01 8.78
60.0 30.9637565 0.5404195 5.742140128 2.322895997 2.471974696 0.711979468 0.33 2.32 8.14 1.13 1.26 8.14 ###
8db487d1-3a27-4f4f-bcd5-1b2034fc862d.xls Page 7
LS Calculator for Cropped Agricultural Land (Table 2)
% slope (enter slope length
slope (degrees) slope (rad) in gray box)
ps q q SINq/0.0896 3sinq0.8 + .56 b m
0.2 0.11459141 0.002 0.022321384 0.580794312 0.038432511 0.037010119
0.5 0.28647651 0.00499996 0.055802874 0.603280564 0.092499041 0.084667389
1.0 0.5729387 0.00999967 0.111601563 0.635353579 0.175652686 0.149408655
2.0 1.14576284 0.01999733 0.223169656 0.691182462 0.322880959 0.244074085
3.0 1.718358 0.029991 0.334670861 0.741410317 0.451397631 0.311008935
ps<9 4.0 2.29061004 0.03997869 0.446071857 0.788292436 0.565871035 0.361377803
5.0 2.86240523 0.0499584 0.557339475 0.832812023 0.669226019 0.400919954
6.0 3.43363036 0.05992816 0.668440745 0.875513535 0.763484193 0.432940764
7.0 4.00417294 0.069886 0.779342943 0.916738965 0.850125251 0.459496053
8.0 4.57392126 0.07982999 0.890013642 0.95672082 0.930275189 0.481939153
10.0 5.71059314 0.09966865 1.110532578 1.033579293 1.074453199 0.517945259
12.0 6.84277341 0.11942893 1.329745766 1.106993991 1.201222208 0.545706928
14.0 7.96961039 0.13909594 1.547408979 1.17752103 1.314124283 0.567871092
16.0 9.09027692 0.15865526 1.763286843 1.245529323 1.415692759 0.586040072
20.0 11.3099325 0.19739556 2.188796151 1.374951785 1.591907567 0.614183772
ps>9 25.0 14.0362435 0.24497866 2.706870815 1.525921174 1.773925719 0.63950008
30.0 16.6992442 0.29145679 3.207007651 1.666235673 1.924702311 0.65808486
40.0 21.8014095 0.38050638 4.144985227 1.918269823 2.160793636 0.683623762
50.0 26.5650512 0.46364761 4.991223164 2.135916683 2.336806115 0.700312225
60.0 30.9637565 0.5404195 5.742140128 2.322895997 2.471974696 0.711979468
8db487d1-3a27-4f4f-bcd5-1b2034fc862d.xls Page 8
LS Calculator for Cropped Agricultural Land (Table 2)
% slope
slope (degrees) slope (rad)
ps q q SINq/0.0896 3sinq0.8 + .56 b m
0.2 0.11459141 0.002 0.022321384 0.580794312 0.038432511 0.037010119
0.5 0.28647651 0.00499996 0.055802874 0.603280564 0.092499041 0.084667389
1.0 0.5729387 0.00999967 0.111601563 0.635353579 0.175652686 0.149408655
2.0 1.14576284 0.01999733 0.223169656 0.691182462 0.322880959 0.244074085
3.0 1.718358 0.029991 0.334670861 0.741410317 0.451397631 0.311008935
ps<9 4.0 2.29061004 0.03997869 0.446071857 0.788292436 0.565871035 0.361377803
5.0 2.86240523 0.0499584 0.557339475 0.832812023 0.669226019 0.400919954
6.0 3.43363036 0.05992816 0.668440745 0.875513535 0.763484193 0.432940764
7.0 4.00417294 0.069886 0.779342943 0.916738965 0.850125251 0.459496053
8.0 4.57392126 0.07982999 0.890013642 0.95672082 0.930275189 0.481939153
10.0 5.71059314 0.09966865 1.110532578 1.033579293 1.074453199 0.517945259
12.0 6.84277341 0.11942893 1.329745766 1.106993991 1.201222208 0.545706928
14.0 7.96961039 0.13909594 1.547408979 1.17752103 1.314124283 0.567871092
16.0 9.09027692 0.15865526 1.763286843 1.245529323 1.415692759 0.586040072
20.0 11.3099325 0.19739556 2.188796151 1.374951785 1.591907567 0.614183772
ps>9 25.0 14.0362435 0.24497866 2.706870815 1.525921174 1.773925719 0.63950008
30.0 16.6992442 0.29145679 3.207007651 1.666235673 1.924702311 0.65808486
40.0 21.8014095 0.38050638 4.144985227 1.918269823 2.160793636 0.683623762
50.0 26.5650512 0.46364761 4.991223164 2.135916683 2.336806115 0.700312225
60.0 30.9637565 0.5404195 5.742140128 2.322895997 2.471974696 0.711979468
8db487d1-3a27-4f4f-bcd5-1b2034fc862d.xls Page 9
LS Calculator for Cropped Agricultural Land (Table 2)
% slope
slope (degrees) slope (rad)
ps q q SINq/0.0896 3sinq0.8 + .56 b m
0.2 0.11459141 0.002 0.022321384 0.580794312 0.038432511 0.037010119
0.5 0.28647651 0.00499996 0.055802874 0.603280564 0.092499041 0.084667389
1.0 0.5729387 0.00999967 0.111601563 0.635353579 0.175652686 0.149408655
2.0 1.14576284 0.01999733 0.223169656 0.691182462 0.322880959 0.244074085
3.0 1.718358 0.029991 0.334670861 0.741410317 0.451397631 0.311008935
ps<9 4.0 2.29061004 0.03997869 0.446071857 0.788292436 0.565871035 0.361377803
5.0 2.86240523 0.0499584 0.557339475 0.832812023 0.669226019 0.400919954
6.0 3.43363036 0.05992816 0.668440745 0.875513535 0.763484193 0.432940764
7.0 4.00417294 0.069886 0.779342943 0.916738965 0.850125251 0.459496053
8.0 4.57392126 0.07982999 0.890013642 0.95672082 0.930275189 0.481939153
10.0 5.71059314 0.09966865 1.110532578 1.033579293 1.074453199 0.517945259
12.0 6.84277341 0.11942893 1.329745766 1.106993991 1.201222208 0.545706928
14.0 7.96961039 0.13909594 1.547408979 1.17752103 1.314124283 0.567871092
16.0 9.09027692 0.15865526 1.763286843 1.245529323 1.415692759 0.586040072
20.0 11.3099325 0.19739556 2.188796151 1.374951785 1.591907567 0.614183772
ps>9 25.0 14.0362435 0.24497866 2.706870815 1.525921174 1.773925719 0.63950008
30.0 16.6992442 0.29145679 3.207007651 1.666235673 1.924702311 0.65808486
40.0 21.8014095 0.38050638 4.144985227 1.918269823 2.160793636 0.683623762
50.0 26.5650512 0.46364761 4.991223164 2.135916683 2.336806115 0.700312225
60.0 30.9637565 0.5404195 5.742140128 2.322895997 2.471974696 0.711979468
8db487d1-3a27-4f4f-bcd5-1b2034fc862d.xls Page 10
LS Calculator for Cropped Agricultural Land (Table 2)
% slope
slope (degrees) slope (rad)
ps q q SINq/0.0896 3sinq0.8 + .56 b m
0.2 0.11459141 0.002 0.022321384 0.580794312 0.038432511 0.037010119
0.5 0.28647651 0.00499996 0.055802874 0.603280564 0.092499041 0.084667389
1.0 0.5729387 0.00999967 0.111601563 0.635353579 0.175652686 0.149408655
2.0 1.14576284 0.01999733 0.223169656 0.691182462 0.322880959 0.244074085
3.0 1.718358 0.029991 0.334670861 0.741410317 0.451397631 0.311008935
ps<9 4.0 2.29061004 0.03997869 0.446071857 0.788292436 0.565871035 0.361377803
5.0 2.86240523 0.0499584 0.557339475 0.832812023 0.669226019 0.400919954
6.0 3.43363036 0.05992816 0.668440745 0.875513535 0.763484193 0.432940764
7.0 4.00417294 0.069886 0.779342943 0.916738965 0.850125251 0.459496053
8.0 4.57392126 0.07982999 0.890013642 0.95672082 0.930275189 0.481939153
10.0 5.71059314 0.09966865 1.110532578 1.033579293 1.074453199 0.517945259
12.0 6.84277341 0.11942893 1.329745766 1.106993991 1.201222208 0.545706928
14.0 7.96961039 0.13909594 1.547408979 1.17752103 1.314124283 0.567871092
16.0 9.09027692 0.15865526 1.763286843 1.245529323 1.415692759 0.586040072
20.0 11.3099325 0.19739556 2.188796151 1.374951785 1.591907567 0.614183772
ps>9 25.0 14.0362435 0.24497866 2.706870815 1.525921174 1.773925719 0.63950008
30.0 16.6992442 0.29145679 3.207007651 1.666235673 1.924702311 0.65808486
40.0 21.8014095 0.38050638 4.144985227 1.918269823 2.160793636 0.683623762
50.0 26.5650512 0.46364761 4.991223164 2.135916683 2.336806115 0.700312225
60.0 30.9637565 0.5404195 5.742140128 2.322895997 2.471974696 0.711979468
8db487d1-3a27-4f4f-bcd5-1b2034fc862d.xls Page 11
LS Calculator for Cropped Agricultural Land (Table 2)
% slope
slope (degrees) slope (rad)
ps q q SINq/0.0896 3sinq0.8 + .56 b m
0.2 0.11459141 0.002 0.022321384 0.580794312 0.038432511 0.037010119
0.5 0.28647651 0.00499996 0.055802874 0.603280564 0.092499041 0.084667389
1.0 0.5729387 0.00999967 0.111601563 0.635353579 0.175652686 0.149408655
2.0 1.14576284 0.01999733 0.223169656 0.691182462 0.322880959 0.244074085
3.0 1.718358 0.029991 0.334670861 0.741410317 0.451397631 0.311008935
ps<9 4.0 2.29061004 0.03997869 0.446071857 0.788292436 0.565871035 0.361377803
5.0 2.86240523 0.0499584 0.557339475 0.832812023 0.669226019 0.400919954
6.0 3.43363036 0.05992816 0.668440745 0.875513535 0.763484193 0.432940764
7.0 4.00417294 0.069886 0.779342943 0.916738965 0.850125251 0.459496053
8.0 4.57392126 0.07982999 0.890013642 0.95672082 0.930275189 0.481939153
10.0 5.71059314 0.09966865 1.110532578 1.033579293 1.074453199 0.517945259
12.0 6.84277341 0.11942893 1.329745766 1.106993991 1.201222208 0.545706928
14.0 7.96961039 0.13909594 1.547408979 1.17752103 1.314124283 0.567871092
16.0 9.09027692 0.15865526 1.763286843 1.245529323 1.415692759 0.586040072
20.0 11.3099325 0.19739556 2.188796151 1.374951785 1.591907567 0.614183772
ps>9 25.0 14.0362435 0.24497866 2.706870815 1.525921174 1.773925719 0.63950008
30.0 16.6992442 0.29145679 3.207007651 1.666235673 1.924702311 0.65808486
40.0 21.8014095 0.38050638 4.144985227 1.918269823 2.160793636 0.683623762
50.0 26.5650512 0.46364761 4.991223164 2.135916683 2.336806115 0.700312225
60.0 30.9637565 0.5404195 5.742140128 2.322895997 2.471974696 0.711979468
8db487d1-3a27-4f4f-bcd5-1b2034fc862d.xls Page 12
RUSLE
Assigned Adjusted
K K
2
5
0.02
0.05
2
5
0.02
0.05
RUSLE K-Factor Adjustment for Zon
10 0.1 10 0.1
15 0.15 15 0.15
0.7
17 0.17 15 0.15
20 0.2 17 0.17
24 0.24 22 0.22
28 0.28 26 0.26 0.6 Adjusted K = 0.9361[Assign
32 0.32 30 0.3 R2 = 0.9985
37 0.37 35 0.35 RUSLE Adjusted "K" 0.5
43 0.43 40 0.4
49 0.49 46 0.46
55 0.55 52 0.52
64 0.64 60 0.6 0.4
0.3
0.2
0.1
0
0 0.1 0.2 0.3
Assigned "K"
stment for Zone 100 B/C
K = 0.9361[Assigned K]
= 0.9985
0.4 0.5 0.6 0.7
ssigned "K"
