factor of runoff meaning in Chinese

径流系数
径流因数
径流因素

( 1 ) in newly - constructed stage and early stage of reclamation , the most important factor of runoff is 30min rainfall intensity . in later stage of reclamation , the most important one is 45min rainfall intensity . and the runoff capacity is the most important influence factor to soil erosion always ; ( 2 ) on the certain degree , loosening surface has an active function to infiltration condition but not to conserve soil ; ( 3 ) the most runoff is formed on platform of stackpile and the soil erosion often happens in the slope ; ( 4 ) stone - soiled dumps have an advantage over soil at respect of erosion resistance so that soil is not adapt in covering slope ; ( 5 ) grass has a better role in conservation of water and soil than arbor in early stage of reclamation ; ( 6 ) arbor - arboret - hemp mix is the best model for conservation
结果显示：在未复垦时期和复垦初期， 30min降雨强度对径流影响最大，复垦后期径流与45min雨强相关性最强，而径流量对土壤侵蚀量的影响始终最大；通过疏松地表岩土只在一定程度上改善地表的入渗条件，并不能起到保土的作用；平台为径流的主要形成区，而土壤侵蚀主要集中在斜坡；土石混排坡的土壤抗蚀性比覆土坡的要大得多，在排土场形成过程中不宜用厚层黄土覆坡；在复垦初期，纯草模式水土保持效果明显好于纯乔模式。