Analysis of dam effect on sediment yield in the Wudinghe River Basin
Received date: 2008-02-19
Revised date: 2008-05-22
Online published: 2008-07-25
Supported by
国家自然科学基金项目(40771031)和中国科学院地理科学与资源研究所知识创新项目资助。
The mean annual discharge, sediment concentration and sediment delivery ratio in the period from 1970 to 1989 are evidently smaller than that in the period from 1954 to 1970. The relations between monthly mean discharge and sediment concentration are different comparing the two periods of time. These phenomena have been influenced by human activities in which the dam building has been the dominant factor since 1970. To discuss the dam effect on decrease of sediment yield a concept of efficient area of dams was advanced. The relation between the annual efficient area of dams and years was fitted. The results show that the varying trend of the relation curve is coincident with the variation of the sediment yield in the decade's distribution. Since 1990 the increase of the sediment yield has resulted in evident decrease of the efficient area of the dams in the Wudinghe River basin. It is necessary to build dam largely and rapidly for restraining the increase of sediment yield in the river basin. If we want the annual sediment yield in the river basin gradually decrease, the annual efficient area of dams must be gradually increased year by year.
WANG Sui-ji, RAN Li-shan . Analysis of dam effect on sediment yield in the Wudinghe River Basin[J]. GEOGRAPHICAL RESEARCH, 2008 , 27(4) : 811 -818 . DOI: 10.11821/yj2008040009
[1] 叶青超.黄河流域环境演变与水沙运行规律.济南:山东科技出版社,1994.
[2] 王随继.黄河下游河型的特性及成因探讨.地球学报,2003,24(1): 73~78.
[3] Wang Suiji, Hassan Marwan A, Xie Xiaoping.Relationship between suspended sediment load, channel geometry and land area increment in the Yellow River delta. Catena, 2006, 65(3): 302~314.
[4] 王随继.无定河流域不同地貌区水沙过程对比.地理研究,2007,26(3): 508~517.
[5] 许炯心,孙季.无定河淤地坝拦沙措施时间变化的分析与对策.水土保持学报,2006,20(2): 26~30.
[6] 冉大川.黄河中游水土保持措施的减水减沙作用研究.资源科学,2006,28(1): 93~100.
[7] 冉大川,左仲国,上官周平.黄河中游多沙粗沙区淤地坝拦减粗泥沙分析.水利学报,2006,37(4): 443~450.
[8] 杨新,延军平,刘宝元.无定河年径流量变化特征及人为驱动力分析.地球科学进展,2005,20(6): 637~642.
[9] 韩学士,宋日升.伊克昭盟砒沙岩侵蚀特征及治理对策.人民黄河,1996, 31~33。
[10] 毕慈芬.黄土高原基岩产沙区治理对策探讨.泥沙研究,2001,(4): 1~6.
[11] 王随继.黄河中游冻融侵蚀的表现方式及其产沙能力评估.水土保持通报,2004,(6): 1~5.
[12] 冉大川,罗全华,刘斌,等,黄河中游地区淤地坝减洪减沙及减蚀作用研究.水利学报,2004,35(5): 7~13.
[13] 王随继.黄河中游多沙粗沙区侵蚀产沙与植被相互作用的临界现象.水土保持学报,2004,18(4): 20~23, 28.
[14] 魏霞,李占斌,李勋贵,沈冰.大理河流域水土保持减沙趋势分析及其成因.水土保持学报,2007,21(4): 67~71.
[15] 李景宗,张玫.浅谈加快红柳河坝库群综合治理的必要性.中国水土保持,2002,(6): 6~7.
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