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机译:在半干旱草原阈值和梯度:长期放牧治疗诱发慢,连续的和可逆的植被变化
USDA ARS, Rangeland Resources Res Unit, 1701 Ctr Ave, Ft Collins, CO 80526 USA;
USDA ARS, Rangeland Resources Res Unit, 8408 Hildreth Rd, Cheyenne, WY 82009 USA;
stocking density; Bouteloua gracilis; Steady stategrazing intensityElymus smithiigrazing landsgrazingThresholdStipa comataHesperostipa comataGrasslandPlant communitiesState ChangeGradientcool season grasses;