Effects of Sediment Reduction by Vegetation Restoration on the Loess Plateau

LIAN Zhenlong; LIU Puling; CHEN Cuihong; JU Tongjun; SHEN Zhenzhou

doi:11894/1005-829x.2008.28(1).10

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Effects of Sediment Reduction by Vegetation Restoration on the Loess Plateau

- Effects of Sediment Reduction by Vegetation Restoration on the Loess Plateau
- Bulletin of Soiland Water Conservation Vol. 27, Issue 1, Pages: 10-13(2008)
- 作者机构：
  
  1. 中国科学院水利部水土保持研究所, 陕西杨凌,712100
  2. 延安市宝塔区延河流域项目办,陕西,延安,716000
- 作者简介：
- 基金信息：
- DOI：11894/1005-829x.2008.28(1).10
  CLC： S157.2F301.2
- Published：2008
- 稿件说明：
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LIAN Zhenlong, LIU Puling, CHEN Cuihong, et al. Effects of Sediment Reduction by Vegetation Restoration on the Loess Plateau[J]. Bulletin of Soiland Water Conservation, 2008, 27(1): 10-13.
DOI：

LIAN Zhenlong, LIU Puling, CHEN Cuihong, et al. Effects of Sediment Reduction by Vegetation Restoration on the Loess Plateau[J]. Bulletin of Soiland Water Conservation, 2008, 27(1): 10-13. DOI： 11894/1005-829x.2008.28(1).10.

摘要

分析了延安燕沟流域近年来的降雨观测资料以及野外人工降雨试验数据

结果表明

燕沟流域年均输沙量比治理前的1997年减少了80%以上。在造成输沙量减少的原因中

降雨因素影响约占30%

而以植被建设为主的水土保持措施影响约占70%

证明植被恢复在流域综合治理中占有重要地位。

Abstract

Through the analysis of observed data of natural and simulated rainfalls in recent years in Yan’gou watershed

Yan’an City

it is concluded that annually averaged sediment yield decreases by more than 80% in comparison with the case before control. Among the factors causing decreased sediment yield

the contri-bution by rainfall makes up about 30 %

while the contribution by the soil and water conservation measures dominated by vegetation construction

about 70 %. The result proves the importance of vegetation restora-tion in comprehensive watershed managementmeasures.

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