High rain intensity tended to undermine penetration of rain water in soil and thus reduced soil moisture.At the same rain intensity, flat cultivation produced maximal surface runoff and soil erosion.

• 在耕作方式相同时，雨强越大，地表径流量越大，地下径流量减少，总径流量增加，不利于土壤保蓄雨水和含水量的提高。