黄河潼关以上现状淤地坝拦沙作用研究  

Amount of the Intercepted Sediment by the Warping Dams in the Regions Above Tongguan in the Yellow River Basin

作　　者：高云飞[1] 郭玉涛[1] 刘晓燕[2] 何兴照[1] 

机构地区：[1]黄河水利委员会黄河上中游管理局,陕西西安710021 [2]黄河水利委员会,河南郑州450003

出　　处：《人民黄河》2014年第7期97-99,共3页Yellow River

基　　金："十二五"国家科技支撑计划项目(2012BAB02B05)

摘　　要：2000年以来黄河输沙量大幅减少,为揭示淤地坝拦沙对减少黄河输沙量的作用,基于第一次全国水利普查有关数据、淤地坝防汛统计数据、各省逐年淤地坝年报数据及对典型骨干坝和试点小流域坝系的实测资料,采用典型推算的方法,计算了现状淤地坝近年的实际拦沙量。结果表明:截至2011年,潼关以上黄土高原地区共有骨干坝5467座、中小型淤地坝约50350座;2007—2013年黄河潼关以上现状淤地坝年均拦沙量为1.228亿t/a,较20世纪70—90年代明显下降。Since 2000,there′s a significant reduction of sediment in the Yellow River. In order to reveal the amount of the intercepted sediment by warping dams in the Yellow River,we calculated the actual intercepted sediment of current warping dams in recent years by using a typical projec-tion method,which was based on the data of China Census for Water,flood statistics of warping dams,annual data of warping dams in each prov-ince and measured data of the typical key dams and dams system of pilot small watersheds. The result shows that there are 5467 key dams and ap-proximately 50,350 of small and medium-sized dams in the region above Tongguan in the Loess Plateau as of 2011,also there is 0. 123 billion ton of sediment which has been captured annually by current warping dams during the period of 2007 ~ 2013,which is much less than that of during the period of 1970s ~ 1990s.

关 键 词：淤地坝 拦沙量 潼关 黄土高原 黄河 

分 类 号：S157.31[农业科学—土壤学] TV882.1[农业科学—农业基础科学]