CHEN Qi-bo,CUN Yu-kang,LIU Zhi-qin,et al.Study on Runoff and Sediment Production on Slope Land of Western Plateau of Yunnan Province[J].Research of Soil and Water Conservation,2005,12(02):71-73.
滇西高原不同地类坡面产流产沙规律研究
- Title:
- Study on Runoff and Sediment Production on Slope Land of Western Plateau of Yunnan Province
- 分类号:
- S157.1
- 摘要:
- 根据径流小区观测，对滇西高原主要典型地类的坡面产流产沙规律进行了研究。结果显示，灌木林和天然次生林，有较好的调节径流和减少土壤流失的作用，二者的产流量分别比坡耕地减少64.0%和63.7%，产沙量分别减少82.1%和74.5%；荒草地的产流产沙量分别比坡耕地减少19.9%和46.6%。产流量与产沙量均与降雨量和最大10min时段降雨强度呈显著幂函数关系，产沙量与产流量之间的线性关系显著。
- Abstract:
- Runoff and sediment production on different types of slope land are researched according to runoff plots observation in western plateau of Yunnan Province.Results show that shrub and natural secondary forest are good at protecting soil from erosion.The two types of land can decrease runoff amounts separately by 64.0% and 63.7%, and soil loss amounts by 82.1% and 74.5% than slope farmland.Slope grass land can decrease runoff and soil loss amounts respectively by 19.9% and (46.6%).All of runoff and soil loss have power function relationship with rainfall amounts and maximum rainfall intensity of 10 min.And soil loss increase with the runoff amounts increase directly.
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备注/Memo
收稿日期:2004-8-7;
基金项目:云南省教育基金项目（02ZY059）；长江水利委员会"长江流域水土保持生态修复试点"项目
作者简介:陈奇伯（1965- ），男，博士，副教授，主要从事土壤侵蚀与流域管理方向的教学与科研工作，发表论文30余篇.