And we have got the following result : 1 . the technique of storing water in soil in gneiss area of tai - hang mountain : the more water in soil before rain is , the less water capability of soil is , the time shorter of water flowing from soil is , the easier the water flows on the ground ; the soil capability of reserving water of different soil thickness is terrace > acacia land > pine land > grass land , so the soil is more thick , the soil capacity which contains water is more large ; the accumulated water that flows on the ground is remarkable related with the logarithms of rain time 太行山片麻岩区土壤蓄水规律：雨前土壤含水量越高，土壤可蓄水量越小，出流所需时间越短，容易形成地表径流；不同土层厚度的土壤蓄水量为：梯田刺槐林地油松林地草地；累积地表径流量与降雨时间的对数呈显著正相关，拟合方程为w = a + blnt ，相关系数均大于0 . 92 ，即在降雨强度一定的前提下，降雨时间越长，累计地表径流量越多。
