摘要
由于研究方法和研究流域的不同,关于小流域的坡沟侵蚀关系仍有不同的观点。通过室内模拟试验,研究了小流域的坡沟侵蚀关系,结果表明:小流域的坡沟侵蚀关系随小流域的沟道发育而变化,呈现出沟道侵蚀量逐渐减少,坡面侵蚀量逐渐增大的总趋势;在次降雨中。
The relationship of slope-gully erosion is an important content for studying erosion in a small watershed, meanwhile it is also an important foundation for comprehensively controlling of watershed. But due to different research methods and different watersheds, there are different viewpoints. In this paper, the relationship of slope-gully erosion was researched by simulation experiment. The results showed that the relationship of slope-gully erosion changed with the development of gully. There existed a general trend that the erosive amount of gully gradually decreased and the erosive amount of slope gradually increased. During individual rainfall, it showed similar changing trend.
基金
国家自然科学基金
黄委会水保基金
关键词
坡沟侵蚀关系
模拟试验
次降雨
坡面侵蚀
沟道发育
small watershed
the relationship of slope-gully erosion
simulation experiment