Study on the Relationship between Land Slope and Sheet Flow Erosin

Wu Pute; Zhou Peihua

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Study on the Relationship between Land Slope and Sheet Flow Erosin

- Study on the Relationship between Land Slope and Sheet Flow Erosin
- Bulletin of Soiland Water Conservation Vol. 12, Issue 3, Pages: 1-5(1993)
- 作者机构：
  
  中国科学院、水利部西北水土保持研究所陕西杨陵,712100
- 作者简介：
- 基金信息：
- DOI：
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- Published：1993
- 稿件说明：
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Wu Pute, Zhou Peihua. Study on the Relationship between Land Slope and Sheet Flow Erosin[J]. Bulletin of Soiland Water Conservation, 1993, 12(3): 1-5.
DOI：

Wu Pute, Zhou Peihua. Study on the Relationship between Land Slope and Sheet Flow Erosin[J]. Bulletin of Soiland Water Conservation, 1993, 12(3): 1-5. DOI：

摘要

该文从薄层水流侵蚀的动力入手，分别研究了薄层水流侵蚀动力及雨滴击溅与薄层水流动力共同作用下地表坡度与薄层水流侵蚀量的关系。结果表明:仅在薄层水流动力作用下，侵蚀量随地表坡度的递增而递增，二者呈幂函数关系，且递增速率随雨强、地表坡度的递增而增加。在雨滴击溅与薄层水流侵蚀动力共同作用下，侵蚀量与地表坡度呈二次抛物线型关系，即有一临界坡度S

存在，当地表坡度S

时，侵蚀量是地表坡度的增函数，反之侵蚀量则为地表坡度的减函数。最后分析了地表坡度对坡面薄层水流侵蚀的影响机制。

Abstract

The rationship between land slope and sheet flow erosion was studied on the base of erosion force of sheet flow The result indicated that by the erosion of sheet flow

the relationship between land slope and the amounts of erosion was a power funtion

the amounts of erosion increasing rate(dsF/ds)added with land slope and rainfall intensity.By the raindrop slope was roughly parabolie

that is there is a critical slope sk.when Sk.The amounts of erosion was increased with land slope

but when Sk

the amounts of erosion dereased with land slope.Finally

the mechanism of land slope effect on the sheet flow erosion was also analysed

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references

(1) 吴普特等.坡面薄层水流流动型态及侵蚀搬运方式的研究.水土保持学报，1992年，第1期

(2) 吴普特等.地表坡度对雨滴溅蚀的影响.水土保持通报，1991年，第3期

(3) 吴普特等.雨滴击溅在薄层水流侵蚀中的作用.水土保持通报，1992年，第4 期

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Related Author

Wu Pute

Zhou Peihua

Related Institution

Northwestern Institute of Soil and Water Conservation of Academia Sinica and the Ministry of Water Conservancy

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