| The experiment was conducted in different ecological regions of south Ningxia to study the characteristics of runoff generation, rainwater storage efficiency and soil moisture distribution during the growing and fallow periods of autumn crop and alfalfa under different micro-catchment planting modes.The results showed: micro-catchment planting could increase water storage and improve soil moisture condition notably;the water storage in 0~2m profile of micro-catchment planting during the growing period of crop was increased by 78.0~136.7mm compared to that of traditional planting, and during the fallow period it was increased by 24.8~49.2mm;during the water storage period, the water storage rate of microcatchment planting reached 43.3%~62.4%, and the rainwater storage efficiency was raised by 51.0%~83.7%. |