CAJ | 학술논문

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。
2000년이래황하수사량대폭감소，위게시어지패란사대감소황하수사량적작용，기우제일차전국수리보사유관수거、어지패방신통계수거、각성축년어지패년보수거급대전형골간패화시점소류역패계적실측자료，채용전형추산적방법，계산료현상어지패근년적실제란사량。결과표명：절지2011년，동관이상황토고원지구공유골간패5467좌、중소형어지패약50350좌；2007-2013년황하동관이상현상어지패년균란사량위1.228억 t/ a，교20세기70-90년대명현하강。
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.