Herbages type soil water deficit and storage were nearest in different vegetations,Populus alba L. var. pyramdalis Bge. + Hippophae rhamnoides L. + Herbages type was farthest.

• 单一草本配置生长季土壤水分亏缺量与土壤贮水量相差最小,杨树+沙棘+草配置的土壤水分亏缺量与土壤贮水量相差最大。