摘要
根据辛店沟1955～1959年坡面径流小区的观测资料,分析了不同植被(高粱豇豆、苜蓿、草木樨)被覆度对土壤侵蚀的影响,主要为被覆度(C)与侵蚀速率的关系。结果表明土壤侵蚀速率随被覆度的增加呈指数下降。不同植被对土壤侵蚀速率的影响不同,应用USLE(The Universal Soil Loess Equation)分别模拟了3种不同植被被覆度对土壤侵蚀的关系方程,探讨了植被被覆度对土壤侵蚀的作用规律。
Based on the observed data from 1955 to 1959 runoff plots in Xindian Gully of Suide Soil and Water Conservation Experiment Station, effects of vegetation cover on soil erosion were discussed in this article. The results indicated that soil loss ratio decreased exponentially with the increase of vegetation cover, and tested the equation between water and soil loss and crop residual vegetative cover Barr had found. Different vegetation had different effects on soil erosion ratio, based on the principle of USLE (The Universal Soil Loess Equation), laws of soil and water loss with vegetation are comprehensively expounded, and its systematic rule is studied.
出处
《西北农业学报》
CAS
CSCD
2003年第3期5-8,共4页
Acta Agriculturae Boreali-occidentalis Sinica
