人民黄河Issue(4)：46-49,54,5.DOI:10.3969/j.issn.1000-1379.2015.04.011
黄河宁蒙河段二次冲淤成因及近期变化
Reasons and Recent Changes of Secondary Scour and Silting of the Channel in Ningxia-Inner Mongolia Reach of the Yellow River
摘要
Abstract
Based on the detailed data on runoff,sediment and cross-section,process,pattern and recent changes of scour and silting within the reach of Ningxia-Inner Mongolia had been analyzed. The result indicates that 1)Ningxia-Inner Mongolia reach has twice balances of erosion and deposition,one occurs in winter and another one is in spring-summer-autumn respectively. The latter one has more runoff,so it is vital effect on balance of reach;2)the deposition mainly occurs in the Inner Mongolia section. River sections almost kept balance in scour and siltation at Shizuishan and Toudaoguai hydrometric stations. The others have significant deposition;3)recent siltation of channel is mainly due to significantly reduction of volume of runoff and number of days of flood peaks.关键词
水沙过程/冲淤平衡/二次冲淤/宁蒙河段/黄河Key words
process of runoff and sediment/balance of erosion and siltation/secondary erosion and siltation/Ningxia-Inner Mongolia reach/Yellow River分类
天文与地球科学引用本文复制引用
颜明,王随继,闫云霞,许炯心,师长兴,贺莉..黄河宁蒙河段二次冲淤成因及近期变化[J].人民黄河,2015,(4):46-49,54,5.基金项目
国家“973”计划项目（2011CB403305）；国家自然科学基金资助项目（41371037）。 （）
