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Rattlesnake Creek Watershed

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Appendix I--Rooting-depth Procedure

For crop rotations in which two crops with different rooting depths are involved, such as the wheat-sorghum or wheat-soybean combinations, the following two procedures were adopted for simulating crop rotations.

  1. If a date close to planting of the second deeper-rooted crop in the crop rotation (that is, within approximately a week) occurred in which the soil-moisture deficit was zero or close to zero, the simulation of the second crop started from that day, but the water-budget accounting was initiated from the original planting day. The budget accounting for the first crop continued until the planting of the second crop. In such cases, we assumed that the additional rooting-depth footage was at its maximum available-water capacity (MAWC).
  2. Alternatively, if no date close to planting occurred in which the soil-water deficit was close to zero, the soil-water deficit was manipulated from the shallower to the deeper rooting depth as follows: the available capacity of the water-deficient shallower-rooting-depth profile was totaled and the ratios of available-water capacity (AWC) of each zone relative to the soil profile's total water capacity was calculated. The MAWC for the additional rooting-depth footage was then calculated. Assuming that this additional rooting-depth footage has the same percentage of AWC as the one in the last (6th) zone of the shallower rooting-depth profile, the total AWC of the additional rooting-depth footage was calculated and added to the shallower profile's total AWC. This total AWC finally was distributed over the six standard zones in the ratios of AWC found for the shallower profile. This second procedure was the one most frequently employed.

Appendix II--Crop-growth stages and crop coefficients

Plant Starting date
of crop stage
Crop stage Soil zone
1 2 3 4 5 6
Prairie
grasses
1982/10/01 Growth .55 .19 .17 .08 .03 .01
1982/11/30 Dormancy .50 .20 .10 .04 .02 .01
1983/03/01 Growth .55 .19 .17 .08 .03 .01
Winter
wheat
1982/10/01 Fallow .40 .15 .12 .10 .02 .01
1982/10/17 Planting to emergence .40 .15 .12 .10 .02 .01
1982/11/30 Dormancy .40 .15 .12 .10 .02 .01
1983/03/01 Spring growth to jointing & heading .17 .13 .10 .07 .04 .02
1983/05/01 Heading to soft dough .33 .15 .14 .12 .01 .05
1983/05/20 Soft dough to ripening & harvest .22 .13 .12 .10 .06 .04
1983/06/15 Fallow (post-harvest) .40 .15 .12 .10 .02 .01
Corn 1983/05/01 Planting .40 .15 .12 .10 .02 .01
1983/05/11 Emergence .40 .20 .13 .12 .03 .02
1983/08/05 Tasseling .40 .25 .15 .12 .10 .03
1983/08/20 Silking .40 .30 .20 .15 .10 .05
1983/09/30 Ear emergence .40 .30 .20 .15 .07 .03
Soybean 1983/06/16 Planting .20 .15 .15 .10    
1983/06/23 Emergence .20 .20 .15 .10 .05 .05
1983/08/15 Flowering .15 .15 .10 .10 .10 .05
1983/08/30 End of Flowering .15 .15 .20 .20 .15 .10
1983/09/15 Maturity .10 .15 .20 .15 .10 .10
Sorghum 1983/06/16 Planting .14 .05 .04 .03 .01 .00
1983/06/23 Post planting .30 .15 .09 .08 .02 .01
1983/08/15 Heading .37 .23 .13 .11 .09 .03
1983/08/30 Blossom .20 .16 .10 .08 .05 .02
1983/09/15 Hard Dough .07 .06 .03 .02 .01 .01
Alfalfa 1982/10/01 Full Cover .50 .25 .25 .20 .18 .12
1982/11/20 Dormancy .50 .20 .10 .04 .02 .01
1983/03/01 Spring Growth .50 .20 .15 .12 .08 .05
1983/04/01 Full Cover .50 .25 .23 .22 .15 .10
1983/04/09 1st cut & earlygrowth .50 .22 .18 .15 .15 .10
1983/05/20 Full cover .50 .25 .25 .20 .18 .12
1983/06/10 2nd cut & early growth .45 .25 .20 .20 .20 .15
1983/07/10 Full cover .50 .25 .25 .20 .18 .12
1983/08/01 3rd cut & early growth .45 .25 .20 .20 .20 .15
1983/09/05 Full cover .50 .25 .25 .20 .18 .12
1983/09/26 4th cut & early growth .45 .25 .20 .20 .20 .15

Appendix III--Water-balance variables in inches

Precipitation and irrigation (inches)

Clim.
zone
Soil
assoc.
Grass Wheat Irr.
wheat
Wheat
to
sorghum
Irr.
wheat to
sorghum
Wheat to
soybeans
Irr.
wheat to
soybeans
Irr.
corn
Fallow
to irr.
sorghum
or irr.
soybeans
Irr.
alfalfa
Alfalfa
Hud-Hud CFT 18.88 18.88 24.88 18.88 37.38 18.88 36.94 33.88 31.38 42.38 18.88
DT 18.88 18.88 24.88 18.88 37.38 18.88 36.94 33.88 31.38 42.38 18.88
NaPl 18.88 18.88 24.88 18.88 37.38 18.88 36.94 33.88 31.38 42.38 18.88
PT 18.88 18.88 24.88 18.88 37.38 18.88 36.94 33.88 31.38 42.38 18.88
PC 18.88 18.88 24.88 18.88 37.38 18.88 36.94 33.88 31.38 42.38 18.88
NF 18.88 18.88 24.88 18.88 37.38 18.88 36.94 33.88 31.38 42.38 18.88
NC 18.88 18.88 24.88 18.88 37.38 18.88 36.94 33.88 31.38 42.38 18.88
BF 18.88 18.88 24.88 18.88 37.38 18.88 36.94 33.88 31.38 42.38 18.88
Hud-Trou PC 23.08 23.08 29.08 23.08 41.58 23.08 41.14 38.08 35.58 46.58 23.08
NaPl 23.08 23.08 29.08 23.08 41.58 23.08 41.14 38.08 35.58 46.58 23.08
PT 23.08 23.08 29.08 23.08 41.58 23.08 41.14 38.08 35.58 46.58 23.08
NF 23.08 23.08 29.08 23.08 41.58 23.08 41.14 38.08 35.58 46.58 23.08
NC 23.08 23.08 29.08 23.08 41.58 23.08 41.14 38.08 35.58 46.58 23.08
Gr-Trou PT 23.08 23.08 29.08 23.08 41.58 23.08 41.14 38.08 34.58 46.58 23.08
APC 23.08 23.08 29.08 23.08 41.58 23.08 41.14 38.08 34.58 46.58 23.08
NC 23.08 23.08 29.08 23.08 41.58 23.08 41.14 38.08 34.58 46.58 23.08
ZHW 23.08 23.08 29.08 23.08 41.58 23.08 41.14 38.08 34.58 46.58 23.08
FL 23.08 23.08 29.08 23.08 41.58 23.08 41.14 38.08 34.58 46.58 23.08
NF 23.08 23.08 29.08 23.08 41.58 23.08 41.14 38.08 34.58 46.58 23.08
Gr-Buck APC 23.52 23.52 29.52 23.52 41.52 23.52 41.08 38.52 35.02 47.02 23.52
Hol 23.52 23.52 29.52 23.52 41.52 23.52 41.08 38.52 35.02 47.02 23.52
HU 23.52 23.52 29-52 23.52 41.52 23.52 41.08 38.52 35.02 47.02 23.52
PT 23.52 23.52 29.52 23.52 41.52 23.52 41.08 38.52 35.02 47.02 23.52

Drainage (inches)

Clim.
zone
Soil
assoc.
Grass Wheat Irr.
wheat
Wheat
to
sorghum
Irr.
wheat to
sorghum
Wheat to
soybeans
Irr.
wheat to
soybeans
Irr.
corn
Fallow
to irr.
sorghum
or irr.
soybeans
Irr.
alfalfa
Alfalfa
Hud-Hud CFT .00 2.67 7.83 2.77 7.88 2.73 7.93 3.23 1.96 .00 .00
DT 1.54 4.05 8.88 4.16 8.93 4.11 8.98 4.61 3.78 .52 .3 1
NaPl .07 2.74 7.85 2.84 7.90 2.79 7.22 3.29 1.96 .00 .00
PT 1.28 3.97 8.78 4.07 8.83 4.02 8.87 4.60 3.64 .28 .04
PC .22 3.07 7.94 3.17 7.99 3.12 8.04 3.64 2.37 .00 .00
NF .00 2.72 7.84 2.83 7.90 2.78 7.95 3.25 1.95 .00 .00
NC .00 2.79 7.85 2.89 7.90 2.84 7.95 3.31 2.01 .00 .00
BF .00 2.57 7.83 2.68 7.88 2.63 7.93 3.13 1.83 .00 .00
Hud-Trou PC .91 5.72 10.86 5.78 11.13 5.70 10.80 5.11 5.11 .00 .00
NaPl .35 5.27 10.32 5.33 10.56 5.14 10.23 4.52 4.46 .00 .00
PT 3.05 6.90 12.01 6.99 12.30 6.86 11.96 6.79 6.71 1.16 .91
NF .18 5.24 10.16 5.33 10.45 5.20 10.12 4.37 4.32 .00 .00
NC .24 5.30 10.18 5.38 10.4i 5.25 10.14 4.42 4.39 .00 .00
Gr-Trou PT 3.29 7.05 12.24 7.11 12.55 7.10 12.19 7.01 6.59 1.33 .91
APC 2.38 6.66 11.75 6.66 12.02 6.71 11.69 6.54 6.09 .71 .41
NC .46 5.62 10.67 5.88 10.99 5.67 10.63 5.23 5.20 .00 .00
ZHW .77 5.62 10.71 5.68 10.99 5.67 10.65 4.30 4.62 .00 .00
FL .11 5.48 10.52 5.53 10.11 5.53 10.47 4.79 4.41 .00 .00
NF .38 5.58 10.63 5.63 10.70 5.63 10.59 4.88 5.11 .00 .00
Gr-Buck APC 3.76 8.17 13.18 7.77 13.08 8.22 13.13 7.99 7.73 .00 .00
Hol .78 6.11 11.30 6.16 11.20 6.16 11.25 5.45 5.45 .00 .00
HU .33 5.99 11.25 6.04 11.15 6.16 11.20 5.58 5.33 .00 .00
PT 4.74 8.46 13.34 8.51 13.24 8.51 13.29 8.65 8.16 .52 .10

Actual evapotranspiration (inches)

Clim.
zone
Soil
assoc.
Grass Wheat Irr.
wheat
Wheat
to
sorghum
Irr.
wheat to
sorghum
Wheat to
soybeans
Irr.
wheat to
soybeans
Irr.
corn
Fallow
to irr.
sorghum
or irr.
soybeans
Irr.
alfalfa
Alfalfa
Hud-Hud CFT 24.28 18.99 19.83 20.65 30.56 23.23 33.50 37.68 33.41 47.98 24.46
DT 18.30 15.12 16.17 15.83 26.65 16.56 27.84 31.10 26.50 42.95 19.79
NaPl 24.11 18.76 19.46 19.85 30.32 22.30 32.69 36.15 31.21 47.32 23.82
PT 19.43 15.51 16.44 16.41 27.10 17.26 28.44 31.83 28.09 43.43 20.28
PC 22.09 17.54 18.28 18.79 29.09 20.19 30.91 34.71 31.37 45.54 22.02
NF 23.89 18.97 19.63 20.50 30.48 22.78 33.13 37.58 33.40 47.32 23.82
NC 23.55 18.78 19.46 20.24 30.25 22.27 32.69 36.10 33.06 46.99 23.49
BF 24.75 19.24 19.85 21.05 30.95 23.93 34.09 38.70 34.77 48.58 25.06
Hud-Trou PC 25.07 18.77 19.47 20.44 29.77 21.96 32.70 37.10 30.32 49.14 26.08
NaPl 27.14 19.97 20.63 21.61 31.07 25.43 34.43 39.68 31.89 50.58 27.77
PT 21.68 16.64 17.51 17.88 27.97 18.98 29.60 33.40 27.70 46.21 23.53
NF 27.29 20.13 20.81 21.43 31.08 24.28 34.56 39.93 32.05 50.90 27.77
NC 26.89 19.93 20.62 21.43 30.84 23.83 34.19 39.48 31.76 50.58 27.45
Gr-Trou PT 21.45 16.41 17.26 17.30 27.64 18.32 29.35 33.19 29.15 46.06 23.55
APC 22.90 16.79 17.98 17.84 28.16 20.10 30.28 34.41 30.26 47.24 24.56
NC 26.78 19.59 20.24 20.97 30.33 23.40 33.76 39.11 34.57 50.77 27.57
ZHW 26.52 19.56 20.19 20.88 30.29 23.40 33.64 38.89 34.40 50.77 27.57
FL 28.36 20.94 20.75 21.91 31.14 25.24 35.06 40.81 35.92 52.33 29.21
NF 27.18 19.78 20.41 21.22 30.54 23.88 34.09 39.54 34.92 51.11 27.90
Gr-Buck APC 22.80 16.35 17.26 17.19 27.23 18.50 29.35 33.56 29.00 47.15 25.38
Hol 27.19 19.28 19.99 20.72 29.98 23.74 33.82 39.65 34.29 50.87 29.11
HU 27.65 19.92 20.57 21.41 30.65 24.51 34.54 40.18 35.08 51.23 29.45
PT 20.40 15.44 16.46 16.04 26.64 17.52 29.59 32.77 28.01 46.22 24.77

Soil-moisture deficit (inches)

Clim.
zone
Soil
assoc.
Grass Wheat Irr.
wheat
Wheat
to
sorghum
Irr.
wheat to
sorghum
Wheat to
soybeans
Irr.
wheat to
soybeans
Irr.
corn
Fallow
to irr.
sorghum
or irr.
soybeans
Irr.
alfalfa
Alfalfa
Hud-Hud CFT 5.63 3.28 3.33 4.90 2.28 7.53 6.07 6.35 5.00 6.30 6.20
DT 1.59 1.37 1.42 2.18 .11 2.90 2.00 1.96 .61 1.80 1.90
NaPl 5.42 3.16 3.21 4.17 2.18 6.55 4.47 4.96 2.37 5.70 5.50
PT 2.52 1.60 1.65 2.52 .40 3.34 1.90 2.44 1.74 2.10 2.00
PC 3.89 2.43 2.48 3.72 1.36 5.11 3.66 4.06 3.61 3.80 3.70
NF 5.45 3.33 3.38 4.78 2.21 7.13 5.22 6.28 5.04 5.70 5.50
NC 5.10 3.17 3.22 4.60 2.03 6.70 4.86 4.59 4.86 5.30 5.20
BF 6.24 3.43 3.48 5.13 2.55 8.12 6.22 7.25 5.66 6.90 6.80
Hud-Trou PC 3.59 2.40 2.45 3.72 .53 5.45 3.55 4.07 .86 3.90 3.70
NaPl 5.19 3.06 3.15 4.71 1.41 8.65 4.97 6.11 1.70 5.70 5.50
PT 2.38 1.60 1.65 2.60 .00 3.70 1.78 2.24 .00 2.10 2.10
NF 5.13 3.20 3.25 4.70 1.26 7.58 4.84 6.13 1.56 5.70 5.50
NC 4.80 3.07 3.12 4.50 1.15 7.22 4.63 5.70 1.36 5.40 5.20
Gr-Trou PT 2.44 1.66 1.71 2.76 .28 3.42 1.72 2.32 1.84 2.20 2.20
APC 2.88 1.93 1.98 3.02 .00 3.95 2.15 2.79 2.34 2.70 2.60
NC 4.90 3.07 3.12 4.50 1.06 6.90 4.54 5.80 4.74 5.60 5.30
ZHW 4.99 3.12 3.17 4.44 .29 6.94 3.72 5.82 4.48 5.60 5.30
FL 6.10 3.54 3.52 5.30 1.76 8.57 5.74 7.40 6.04 7.10 7.00
NF 5.20 3.23 3.25 4.70 1.24 7.33 4.84 6.20 5.07 5.90 5.70
Gr-Buck APC 2.77 1.95 2.00 2.54 .01 4.08 2.56 2.85 2.57 2.70 2.70
Hol 5.40 3.20 3.25 4.50 1.36 7.70 5.64 7.10 5.74 6.60 6.60
HU 5.67 3.73 3.78 5.13 1.99 8.41 6.26 7.81 6.36 7.00 7.20
PT 2.46 1.48 1.53 2.32 .00 3.46 2.34 2.62 2.14 2.10 2.10

Runoff (inches)

Clim.
zone
Soil
assoc.
Grass Wheat Irr.
wheat
Wheat
to
sorghum
Irr.
wheat to
sorghum
Wheat to
soybeans
Irr.
wheat to
soybeans
Irr.
corn
Fallow
to irr.
sorghum
or irr.
soybeans
Irr.
alfalfa
Alfalfa
Hud-Hud CFT .26 .26 .47 .27 .65 .28 .56 .35 .43 .51 .38
DT .48 .89 1.02 .90 1.19 .91 1.10 .97 1.06 .55 .43
NaPl .27 .29 .53 .30 .71 .31 .61 .38 .46 .51 .38
PT .51 .75 1.01 .76 1.18 .77 1.09 .83 .91 .55 .43
PC .26 .46 .86 .47 1.03 .48 .94 .54 .62 .52 .40
NF .26 .26 .49 .27 .66 .28 .57 .35 .43 .51 .38
NC .26 .26 .53 .27 .70 .28 .61 .35 .43 .51 .38
BF .26 .26 .41 .27 .58 .28 .49 .35 .43 .51 .38
Hud-Trou PC .50 .85 1.02 .84 1.80 .84 1.78 1.01 .84 1.16 .59
NaPl .57 .72 1.00 .73 1.12 .69 1.02 .91 .66 1.18 .64
PT .54 1.00 1.04 1.00 1.74 1.00 1.69 1.08 .98 1.08 .53
NF .55 .70 1.10 .67 1.17 .67 1.07 .89 .62 1.18 .64
NC .55 .70 1.14 .67 1.21 .67 1.11 .89 .63 1.18 .64
Gr-Trou PT .63 1.06 1.09 1.07 1.19 1.08 1.08 1.16 1.09 1.15 .60
APC .52 .97 1.14 .98 1.23 .99 1.12 1.10 .99 1.20 .63
NC .57 .77 1.13 .78 1.20 .79 1.09 .96 .73 1.22 .66
ZHW .58 .75 1.10 .76 1.20 .77 1.09 .93 .72 1.22 .66
FL .59 .70 1.13 .71 1.22 .72 1.11 .90 .65 1.23 .71
NF .57 .75 1.13 .76 1.20 .77 1.09 .99 .70 1.22 .66
Gr-Buck APC .60 .65 .84 .69 .96 .70 .73 .79 .75 2.35 .62
Hol .75 1.06 1.27 1.07 1.43 1.08 1.36 1.36 .79 2.51 .86
HU .93 1.06 1.27 1.07 1.38 1.08 1.36 1.43 .79 2.54 1.03
PT .59 .83 1.04 .84 1.14 .85 1.08 .90 .88 2.23 .61

Appendix IV--Water-balance variables in acre-feet

Crop or crop rotation (acre-feet) Row totals (acre-feet)
Grass Irr.
wheat
Fallow
to irr.
sorghum
Fallow
to irr.
corn
Irr.
wheat
to irr.
soybeans
Dryland
wheat
Dryland
wheat to
sorghum
Irr.
alfalfa
Dryland
alfalfa
Total Parameter Soil
assoc.
Clim.
zone
2476.80 .00 .00 .00 .00 5574.40 1388.80 .00 281.60 9721.60 AREA CFT Hud-Hud
3901.33 .00 .00 .00 .00 8769.60 2189.33 .00 444.80 15305.39 PCP
1163.20 .00 .00 .00 .00 1523.73 568.53 .00 146.13 3401.24 SD
5017.07 .00 .00 .00 .00 8820.80 2394.67 .00 576.00 16809.01 AE
.00 .00 .00 .00 .00 1240.00 321.07 .00 .00 1561.46 DR
53.87 .00 .00 .00 .00 120.53 31.47 .00 9.07 214.76 RO
48249.60 57.60 140.80 198.40 115.20 2860.80 716.80 121.60 147.20 52607.99 AREA DT
75914.63 124.80 361.60 563.73 362.67 4497.07 1122.67 438.40 228.27 83613.88 PCP
6393.07 6.93 6.93 32.53 19.73 326.40 129.60 18.67 22.93 6957.17 SD
73582.38 81.07 305.07 517.33 273.07 3601.60 941.33 444.27 238.93 79986.12 AE
6192.00 44.27 43.73 76.80 88.00 964.80 247.47 5.33 3.73 7666.35 DR
1930.13 5.33 12.27 16.00 10.67 212.27 53.33 5.87 5.33 2250.71 RO
37952.00 .00 .00 .00 .00 .00 .00 .00 .00 37952.00 AREA NaPl
59710.93 .00 .00 .00 .00 .00 .00 .00 .00 59710.93 PCP
17141.86 .00 .00 .00 .00 .00 .00 .00 .00 17141.65 SD
76251.75 .00 .00 .00 .00 .00 .00 .00 .00 76251.75 AE
221.33 .00 .00 .00 .00 .00 .00 .00 .00 221.39 DR
853.87 .00 .00 .00 .00 .00 .00 .00 .00 853.92 RO
15884.80 326.40 748.80 1081.60 640.00 9228.80 2304.00 672.00 467.20 31353.60 AREA PT
24992.00 677.33 1962.67 3061.33 1968.53 14518.93 3625.07 2380.80 736.53 53922.66 PCP
3336.00 44.80 108.80 220.27 101.33 1230.40 483.73 117.87 77.87 5721.49 SD
25720.00 447.47 1757.33 2876.27 1515.20 11927.46 3150.93 2440.00 790.93 50625.06 AE
1694.40 238.93 227.73 415.47 472.53 3052.80 781.33 15.47 1.60 6901.01 DR
675.20 27.73 57.07 75.20 58.13 576.53 146.13 30.93 16.53 1662.94 RO
8006.40 2528.00 5804.80 8384.00 4947.20 74560.00 18617.60 5216.00 3782.40 131846.37 AREA PC
12595.20 5237.33 15179.20 23672.54 15221.33 117312.50 29290.13 18412.27 5949.33 242869.75 PCP
2595.20 522.13 1746.13 2836.80 1508.27 15099.20 5771.20 1651.20 1165.87 32895.31 SD
14736.54 3848.00 15174.40 24252.26 12737.07 108986.12 29150.40 19785.06 6939.20 235608.50 AE
146.67 1671.47 1146.67 2543.47 3313.07 19075.73 4917.87 .00 .00 32814.50 DR
173.33 180.80 299.73 377.07 387.20 2858.13 729.07 226.13 125.87 5358.40 RO
1350.40 844.80 1945.60 2809.60 1657.60 16595.20 4147.20 1747.20 844.80 31942.38 AREA NF
2129.60 1753.60 5082.67 7926.40 5097.07 26114.66 6520.00 6165.33 1324.27 62113.07 PCP
614.93 238.40 816.53 1469.33 720.00 4605.87 1650.67 829.33 385.60 11330.51 SD
2694.40 1383.47 5409.60 8792.00 4571.20 26238.93 7079.46 6883.73 1670.93 64724.27 AE
.00 552.53 315.73 760.53 1097.07 3762.13 977.07 .00 .00 7465.28 DR
29.33 34.67 69.87 82.13 78.40 359.47 93.33 74.13 26.67 847.76 RO
1030.40 1088.00 2502.40 3609.60 2131.20 23923.20 5971.20 2246.40 1216.00 43718.40 AREA NC
1618.13 2254.93 6536.00 10193.07 6554.13 37642.66 9398.40 7928.00 1908.80 84033.56 PCP
437.33 291.73 1012.27 1380.80 862.40 6320.53 2289.60 991.47 525.87 14111.78 SD
2018.67 1763.73 6885.87 10860.80 5800.00 37443.20 10075.20 8790.40 2374.93 86012.81 AE
.00 711.47 418.67 995.73 1410.67 5562.67 1438.40 .00 .00 10537.76 DR
22.40 48.00 89.60 105.07 108.27 518.40 134.40 95.47 38.40 1160.03 RO
217.60 96.00 224.00 320.00 192.00 4998.40 1248.00 198.40 256.00 7750.40 AREA BF
338.13 201.07 581.87 907.73 583.47 7862.93 1963.20 706.13 398.93, 13542.82 PCP
111.47 28.27 105.07 194.13 98.13 1428.27 533.33 115.20 143.47 2757.73 SD
443.20 160.00 644.80 1036.80 538.67 8012.80 2188.80 809.07 529.07 14363.63 AE
.00 62.93 34.13 83.73 125.33 1070.40 278.93 .00 .00 1655.26 DR
4.80 3.20 8.00 9.60 8.00 108.27 28.27 8.53 8.00 185.93 RO
1625.60 736.00 1696.00 2451.20 1446.40 15456.00 3859.20 1523.20 780.80 29574.39 AREA PC Hud-Trou
3124.27 1787.20 5025.07 7768.53 4949.87 29724.80 7421.33 5908.80 1507.73 67217.06 PCP
485.87 150.40 121.60 830.40 427.20 3091.20 1196.27 494.93 241.60 7038.93 SD
3393.60 1196.80 4282.13 7568.53 3934.40 24173.86 6572.80 6233.60 1703.47 59058.13 AE
123.20 667.73 721.60 1042.67 1299.20 7366.93 1858.67 .00 .00 13079.57 DR
67.73 62.93 118.40 205.87 214.40 1094.93 269.87 147.20 38.40 2219.71 RO
12608.00 .00 .00 .00 .00 .00 .00 .00 .00 12608.00 AREA NaPl
24249.59 .00 .00 .00 .00 .00 .00 .00 .00 24249.39 PCP
5452.80 .00 .00 .00 .00 .00 .00 .00 .00 5452.96 SD
28515.19 .00 .00 .00 .00 .00 .00 .00 .00 28515.09 AE
367.47 .00 .00 .00 .00 .00 .00 .00 .00 367.73 DR
598.93 .00 .00 .00 .00 .00 .00 .00 .00 598.88 RO
16678.40 217.60 499.20 723.20 428.80 3801.60 947.20 448.00 192.00 23936.00 AREA PT
32072.54 528.00 1483.73 2293.87 1461.33 7312.00 1825.60 1744.53 370.67 49092.36 PCP
3307.20 29.87 .00 134.93 63.47 506.67 205.87 78.40 33.60 4360.36 SD
30126.93 317.87 1155.20 2011.73 1051.73 5272.00 1414.40 1730.67 378.13 43458.19 AE
4238.40 218.13 280.00 409.07 425.07 2186.13 553.07 43.20 14.40 8366.98 DR
750.40 18.67 41.07 65.07 60.27 316.80 78.93 40.53 8.53 1380.11 RO
723.20 422.40 972.80 1401.60 825.60 12422.40 3104.00 870.40 627.20 21369.60 AREA NF
1396.27 1025.07 2881.60 4454.40 2838.40 23887.99 5964.27 3388.27 1211.73 47046.87 PCP
310.40 114.67 126.40 717.33 333.87 3312.00 1214.40 414.40 288.53 6832.00 SD
1650.67 733.33 2595.73 4670.93 2384.00 20834.66 5537.60 3702.40 1457.60 43567.41 AE
10.67 357.87 349.87 510.93 698.13 5423.46 1377.60 .00 .00 8728.91 DR
33.07 38.93 50.13 104.00 73.60 724.27 173.33 85.87 33.60 1317.24 RO
2035.20 940.80 2163.20 3129.60 1843.20 22073.60 5510.40 1945.60 1120.00 40761.60 AREA NC
3917.33 2284.27 6422.93 9929.07 6326.40 42452.26 10599.46 7552.00 2153.07 91636.81 PCP
814.93 245.33 245.33 1486.40 712.00 5646.93 2066.67 875.73 485.33 12577.49 SD
4564.27 1619.73 5733.33 10294.40 5257.60 36658.13 9841.60 8200.53 2560.53 84730.13 AE
40.53 799.47 792.53 1152.53 1559.47 9748.27 2470.93 .00 .00 16563.95 DR
93.33 89.60 113.60 232.00 170.67 1287.47 307.73 191.47 59.73 2545.64 RO
37382.40 51.20 3532.80 3264.00 3488.00 11097.60 1440.00 3033.60 576.00 63865.61 AREA PT Gr-Trou
71894.94 129.60 12235.73 10356.80 10060.27 21340.79 2774.93 11786.13 1109.87 141689.06 PCP
7600.53 7.47 82.13 630.93 535.47 1534.93 411.20 556.80 105.60 11465.55 SD
66817.63 76.80 8133.87 9027.20 8480.53 15173.33 2202.67 11654.40 1132.27 122698.69 AE
10248.53 54.40 3693.33 1906.67 1917.33 6518.93 853.87 336.53 43.73 25572.59 DR
1962.67 4.80 350.40 315.73 317.33 980.27 129.60 291.20 28.80 4379.93 RO
5529.60 166.40 11136.00 10291.20 11008.00 50496.00 6566.40 9574.40 2624.00 107392.00 AREA APC
10637.87 409.07 38580.79 32656.53 31721.06 97116.25 12627.20 37162.66 5051.20 265962.69 PCP
1327.47 27.73 .00 2392.53 2146.67 8121.07 2161.07 2154.13 569.07 18899.67 SD
10554.66 252.80 26129.06 29509.33 27758.39 70649.06 10996.80 37689.59 5374.93 218914.12 AE
1097.07 165.33 11153.07 5608.53 5586.67 28024.00 3670.93 566.40 89.60 55961.06 DR
239.47 16.00 1141.33 943.47 908.27 4081.60 541.87 957.33 138.13 8966.93 RO
243.20 64.00 4345.60 4019.20 4294.40 20627.20 2681.60 3737.60 1075.20 41087.99 AREA NC
473.60 159.47 15057.60 12745.60 12380.27 39670.93 5158.40 14504.00 2063.47 102213.31 PCP
100.80 17.07 384.00 1941.33 1697.07 5276.80 1541.87 1744.00 473.60 13176.37 SD
549.33 110.93 10983.46 13090.13 12377.07 33672.54 5229.87 15809.06 2464.53 94286.94 AE
9.60 58.67 3979.73 1750.40 1861.87 9659.73 1267.20 .00 .00 18587.25 DR
11.73 6.40 434.67 321.07 261.33 1323.73 176.53 379.73 59.20 2974.10 RO
32.00 .00 166.40 153.60 166.40 2572.80 332.80 147.20 134.40 3705.60 AREA ZHW
59.20 6.40 585.60 495.47 481.60 4948.80 643.20 563.73 257.60 8040.96 PCP
12.80 .53 4.27 75.73 62.40 668.80 193.60 67.73 59.20 1144.96 SD
67.73 4.27 426.67 506.13 478.93 4193.60 652.27 614.40 307.20 7251.89 AE
2.13 2.13 154.67 56.00 64.53 1204.80 157.87 .00 .00 1642.31 DR
1.60 .00 17.07 12.27 10.13 161.07 21.33 14.93 7.47 245.14 RO
179.20 38.40 2342.40 2163.20 2316.80 15244.80 1984.00 2016.00 793.60 27078.41 AREA FL
349.87 85.87 8114.13 6868.27 6671.46 29320.53 3812.27 7816.00 1524.80 64563.73 PCP
92.27 10.67 343.47 1334.93 1165.33 4497.07 1415.47 1191.47 462.40 10512.96 SD
430.40 61.33 6076.80 7360.53 6930.13 26601.60 4169.07 8780.80 1930.13 62340.79 AE
1.60 30.93 1972.80 864.00 850.67 6961.60 913.60 .00 .00 11595.63 DR
9.07 3.20 237.87 162.13 125.33 889.07 118.93 206.40 46.93 1799.60 RO
179.20 12.80 780.80 723.20 774.40 14784.00 1920.00 672.00 768.00 20614.41 AREA NF
339.73 28.80 2704.53 2289.60 2224.00 28433.59 3697.07 2605.33 1478.93 43801.17 PCP
76.27 3.20 80.53 372.80 325.87 3979.20 1174.40 330.13 365.33 6707.79 SD
400.00 20.27 1986.67 2377.07 2245.87 24368.53 3825.07 2858.67 1787.73 39869.28 AE
5.33 10.67 696.00 293.33 328.53 6874.13 901.87 .00 .00 9110.29 DR
8.53 1.07 77.87 59.73 44.80 923.73 123.20 68.27 42.13 1349.94 RO
2796.80 582.40 3833.60 2188.80 4864.00 17088.00 6041.60 2041.60 377.60 39814.39 AREA APC Gr-Buck
5479.46 1428.27 13269.33 7022.40 14187.20 33497.60 11841.60 7989.87 737.07 95453.31 PCP
645.33 96.53 3.20 519.47 1041.07 2777.07 2054.40 458.67 84.80 7680.80 SD
5312.00 835.20 8702.40 6117.87 11748.27 23285.87 9314.13 8011.73 795.73 74123.75 AE
876.27 637.87 4180.27 1456.53 3131.73 11635.73 4138.67 .00 .00 26056.54 DR
139.73 40.53 306.67 144.00 304.00 925.87 352.53 399.47 19.20 2632.03 RO
1689.60 140.80 915.20 518.40 1158.40 13414.41 4742.40 486.40 294.40 23360.01 AREA Hol
3316.80 339.73 3156.80 1670.93 3375.47 26296.54 9296.00 1900.80 578.67 49932.36 PCP
761.60 37.33 103.47 307.73 553.07 3577.60 3043.20 266.67 162.67 8813.92 SD
3834.67 230.40 2279.47 1719.47 3305.07 21556.26 9382.93 2056.53 716.27 45081.01 AE
109.87 130.13 851.73 236.27 525.33 6831.46 2434.67 .00 .00 11119.36 DR
105.60 14.40 108.80 59.20 76.27 1185.07 426.67 101.33 21.33 2098.88 RO
9158.40 499.20 3283.20 1875.20 4166.40 67520.00 23865.59 1747.20 1484.80 113600.00 AREA HU
17947.20 1224.00 11370.13 6017.07 12156.80 132335.44 46781.32 6846.40 2912.53 237590.81 PCP
4326.40 156.80 545.07 1220.27 2208.00 20986.66 16727.46 1019.20 891.73 48081.22 SD
21098.67 852.80 8393.60 6276.80 12177.60 112080.00 48750.93 7459.20 3646.93 220735.37 AE
251.73 466.67 3053.33 871.47 1850.13 33702.93 12252.27 .00 .00 52448.64 DR
709.87 52.80 378.13 223.47 274.13 5964.27 2148.27 369.60 127.47 10247.41 RO
11475.20 128.00 838.40 480.00 1062.40 864.00 307.20 448.00 19.20 15622.39 AREA PT
22491.20 312.53 2905.60 1537.60 3106.67 1687.47 596.27 1749.33 37.33 34423.68 PCP
2352.53 16.00 .00 104.53 189.87 106.13 88.00 78.40 3.20 2938.37 SD
19507.73 174.40 1864.00 1308.27 2484.80 1107.73 444.27 1719.47 38.93 28649.54 AE
4532.80 141.33 926.40 345.07 723.73 606.93 216.00 19.20 .00 7511.84 DR
564.27 11.20 80.00 35.73 77.87 59.73 21.33 83.20 1.07 934.00 RO

Appendix V--Water-balance map values (inches)

Clim.
zone
Soil
assoc.
Natural growth Non-irrigated values Irrigated values
PCP SD AE DR RO PCP SD AE DR RO PCP SD AE DR RO
Hud-Hud CFT 18.88 5.63 24.28 .00 .26 18.88 3.70 19.52 2.59 .27 .00 .00 .00 .00 .00
DT 18.88 1.59 18.30 1.54 .48 18.88 1.55 15.44 3.93 .87 34.71 1.59 30.40 4.84 .94
NaPl 18.88 5.42 24.11 .07 .27 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00
PT 18.88 2.52 19.43 1.28 .51 18.88 1.79 15.87 3.84 .74 34.71 2.05 31.20 4.73 .86
PC 18.88 3.89 22.09 .22 .26 18.88 2.73 17.95 2.97 .46 34.71 3.69 33.85 3.87 .66
NF 18.88 5.45 23.89 .00 .26 18.88 3.69 19.45 2.64 .27 34.71 5.43 36.06 3.63 .45
NC 18.88 5.10 23.55 .00 .26 18.88 3.52 19.24 2.70 .27 34.71 4.71 35.36 3.67 .46
Hud-Trou BF 18.88 6.24 24.75 .00 .26 18.88 3.89 19.81 2.49 .27 34.71 6.29 37.15 3.57 .43
PC 23.08 3.59 25.07 .91 .50 23.08 2.70 19.38 5.51 .84 38.91 3.10 35.50 5.71 1.15
NaPl 23.08 5.19 27.14 .35 .57 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00
PT 23.08 2.38 21.68 3.05 .54 23.08 1.81 17.15 6.68 .98 38.91 1.59 32.46 7.12 1.17
NF 23.08 5.13 27.29 .18 .55 23.08 3.58 20.68 5.05 .69 38.91 4.55 37.57 5.11 .94
NC 23.08 4.80 26.89 .24 .55 23.08 3.43 20.51 5.11 .69 38.91 4.26 37.22 5.15 .95
Gr-Trou PT 23.08 2.44 21.45 3.29 .63 23.08 1.80 16.82 6-79 1.04 39.98 1.63 33.53 7.09 1.15
APC 23.08 2.88 22.90 2.38 .52 23.08 2.08 17.25 6.39 .96 39.98 1.91 34.52 6.57 1.13
NC 23.08 4.90 26.78 .46 .57 23.08 3.33 20.09 5.40 .77 39.98 4.22 38.18 5.58 1.02
ZHW 23.08 4.99 26.52 .77 .58 23.08 3.36 20.06 5.38 .75 39.98 3.95 38.07 5.20 1.01
FL 23.08 6.10 28.36 .11 .59 23.08 3.89 21.41 5.24 .70 39.98 5.47 39.52 5.03 1.00
NF 23.08 5.20 27.18 .38 .57 23.08 3.50 20.30 5.34 .75 39.98 4.52 38.51 5.39 1.02
Gr-Buck APC 23.52 2.77 22.80 3.76 .60 23.52 2.11 16.71 7.94 .66 39.01 1.88 31.47 8.36 1.06
Hol 23.52 5.40 27.19 .78 .75 23.52 3.59 19.81 6.03 1.06 39.01 4.74 35.82 6.51 1.34
HU 23.52 5.67 27.65 .33 .93 23.52 4.15 20.46 5.91 1.06 39.01 5.34 36.46 6.47 1.35
PT 23.52 2.46 20.40 4.74 .59 23.52 1.71 15.74 8.34 .83 39.01 1.58 30.65 8.75 1.17

Appendix VI--Prediction table

Climatic
zone
Soil
assoc.
Area
(acres)
Native grasses Alfalfa Winter wheat
Deep
drainage
(in.)
Deep
drainage
(acre-feet)
Deep
drainage
(in.)
Deep
drainage
(acre-feet)
Deep
drainage
(in.)
Deep
drainage
(acre-feet)
Hud-Hud CFT 9.722 0.00   0.00   2.67 2,163
DT 52,608 1.54 6,750 0.31 1,359 4.05 17,755
Na-Pl 37,952 0.07 221 0.00   2.74 8,666
FF 31,354 1.28 3,345 0.04 105 3.97 10,373
PC 131,846 0.22 2,417 0.00   3.07 33,731
NF 31,942 0.00   0.00   2.72 7,240
NC 43,718 0.00   0.00   2.79 10,164
BF 7,750 0.00   0.00   2.57 1,660
Hud-Trou PC 29,574 0.91 2,243 0.00   5.72 14,097
Na-Pl 12,608 0.35 368 0.00   5.27 5,537
PT 23,936 3.05 6,084 0.91 1,815 6.90 13,763
NF 21,370 0.18 321 0.00   5.24 9,331
NC 40,762 0.24 815 0.00   5.30 18,003
Gr-Trou PT 63,866 3.29 17,510 0.91 4,843 7.05 37,521
APC 107,392 2.38 21,299 0.41 3,669 6.66 59,603
NC 41,088 0.46 1,575 0.00   5.62 19,243
ZHW 3,706 0.77 238 0.00   5.62 1,735
FL 27,078 0.11 248 0.00   5.48 12,366
NF 20,614 0.38 653 0.00   5.58 9,586
Gr-Buck APC 39,814 3.76 12,475 0.00   8.17 27,107
Hol 23,360 0.78 1,518 0.00   6.11 11,894
HU 113,600 0.33 3,124 0.00   5.99 56,705
PT 15,622 4.74 6,171 0.10 130 8.46 11,014
Total   931,283
(1455.13 mi2)
  87,374
(1.13 in.)
  11,921
(0.15 in.)
  399,257
(5.14 in.)

Appendix VII--Surface-runoff calculations

(1) (2) (3) (4) (5) (6)
Climatic
zone
Soil
assoc.
Contributing area VB runoff estimate
for entire soil assoc.
(acre feet)
VB runoff estimate for
contributing area
col. (5) x col. (3)
(acre feet)
Soil assoc.
percentage
Area
(acres)
Hud-Hud CFT 88 8,561 215 189
DT 49 25,778 2,251 1,103
Na-Pl 98 37,193 854 837
PT 1 314 1,663 17
PC 4 5,274 5,358 214
NF 82 26,188 848 695
NC 21 9,180 1,160 244
BF 71 5,498 186 132
Hud-Trou PC 15 4,435 2,220 333
Na-Pl 100 12,608 599 599
PT 8 1,915 1,380 110
NF 51 10,902 1,317 672
NC 42 17,123 2,546 1,069
Gr-Trou PT 16 10,220 4,380 701
APC 6 6,444 8,967 538
NC 42 17,257 2,974 1,249
ZHW 46 1,708 245 113
FL 0      
NF 0      
Total     200,598   8,815 acre feet
3.84 x 108 ft3
0.527 in

Prev Page--References

Kansas Geological Survey, Geohydrology
Placed on web Aug. 16, 2010; originally published 1990.
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