论文部分内容阅读
利用径流冲刷试验,在不同植被格局的坡面上,对黄土丘陵区坡面不同植被格局的侵蚀产沙规律进行了研究。结果表明:在不同流量下,各个植被格局对于坡面产流量的影响不显著。不同植被格局坡面的累积产沙量呈现出随着流量的增加而增加的趋势,但是坡面累积产沙量的差异都是随着流量的增加反而减小了。各个植被格局坡面的累积径流量过程与累积产沙量过程之间呈相关性非常显著,相关系数都达到95%以上。
Using runoff scouring test, the law of erosion and sediment yield of different vegetation patterns on slope land in loess hilly region was studied on the slope of different vegetation pattern. The results showed that under different flow rates, the effect of each vegetation pattern on runoff yield was not significant. The cumulative sediment yield of different vegetation patterns showed a trend of increasing with the increase of flow rate, but the difference of cumulative sediment yield decreased with the increase of flow rate. The correlation between the cumulative runoff process and the cumulative sediment yield of each vegetation pattern slope was very significant, with the correlation coefficients above 95%.