Effects of Sediment Reduction by Vegetation Restoration on the Loess Plateau

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

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Effects of Sediment Reduction by Vegetation Restoration on the Loess Plateau
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                        11894/1005-829x.2008.28(1).10
                    
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                        LIAN ZhenlongLIAN Zhenlong
Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling 712100, China
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LIU PulingLIU Puling
Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling 712100, China
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CHEN CuihongCHEN Cuihong
The Management Project Office of Yanhe Basin in Yan’an City, Yan’an, Shaanxi 716000, China
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JU TongjunJU Tongjun
Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling 712100, China
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SHEN ZhenzhouSHEN Zhenzhou
Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling 712100, China
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Clc Number:S157.2 F301.2
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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.

Key words:the Loess Plateau;vegetation restoration;rainfall;effect of sediment reduction

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连振龙,刘普灵,陈翠红,琚彤军,申震洲.黄土丘陵沟壑区林草植被恢复的减沙效益研究[J].水土保持通报英文版,2008,(1):10-13

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Received:May 31,2007
Revised:September 28,2007
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