不同坡形坡度径流量产生规律的试验研究
冯大光;范昊明;王铁良
【期刊名称】《沈阳农业大学学报》 【年(卷),期】2017(048)003
【摘要】In order to get reasonable allocating measures of water and soil conservation, as well as the effective governance of water loss and soil erosion caused by runoff erosion of slopes, the slope runoff regularity was studied by simulating rainfall on 4 different slope shapes (convex slope, concave slope, straight slope, concave straight slope) and 3 grades (5°,10°,15°) under 3 rainfall intensity (0.64, 1.05, 1.52 mm·min-1). The study involved a total of 36 types of combinations and 36 rainfalls with a method of non-replication comprehensive experiment. The results from three factors analysis of variance, showed that the amount of runoff was greatly influenced by slope shapes, grades and rainfall intensity. The influence of slope shapes on runoff was as concave slope>convex
slope>concave
straight
slope>straight
slope.The
interaction between the two of the three factors also had significantly different degrees of influence on the amount of runoff. And the interactions, not only between grades and rainfall intensity but also between slope and grades, were all significant at level 0.01. The interaction between slope and grades is significant at level 0.05. Because the results did not fit the normal distribution, a logarithmic
不同坡形坡度径流量产生规律的试验研究
