AUM QTR = Animal Unit Months per Quarter
The carrying capacity expressed in animal unit months per quarter. This is the animal unit months per acre converted to animal unit months per quarter by multiplying the AUM per acre by 160. In this instance a sandy, black soil can carry .45 AUM per acre; 0.450 AUM/AC x 160 acres = 72 AUM/QTR. This is equivalent to 12 cows over a 6 month grazing season. The same calculation done for area b) produces a rating of 32 AUM/QTR. The carrying capacity represents the value of the range for grazing and is defined as the maximum long-term stocking rate possible without inducing range degradation.
Yield per Acre x 160 = Carrying Capacity (AUM QTR)
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