应用生态学报2011，Vol.22Issue(2)：467-472,6.
黄河改道以来黄河三角洲演变过程及其驱动机制
Evolution process and related driving mechanisms of Yellow River Delta since the diversion of Yellow River.
摘要
Abstract
Based on the 23 sheets of remote sensmg images from 1976 to 2009. in combining with the water and sediment data from Lijin station and the annual precipitation data of Yellow River Basin from 1976 to 2008. this paper quantitatively analyzed the features of water and sediment discharge from Yellow River. and the evolution process of Yellow River Delta and related driving mechanisms. In 1976-2008. the annual runoff and the annual sediment discharge into sea changed largely and frequently, but overall, presented a decreasing trend. Since the course of the Yellow River changed its direction to Qingshui channel in 1976 . the Delta coastline and area were generally in a silting-up state. The evolution process of the Delta could be approximately divided into three stages, i. e. , 1976-1985. 1986-1995. and 1996-2009. and the increasing rate of the Delta decreased with the stages. The coastline and area of the Delta were significantly exponentially correlated to the sediment accumulated at Lijin station. and the inter-annual variation of the precipitation of the Yellow River Basin had a strong correlation with that of the sediment at Lijin station, suggesting that the annual variation of the precipitation in Yellow River Basin was the main factor affecting the runoff and sediment discharge into sea.关键词
黄河三角洲/岸线/演变/驱动机制分类
生物科学引用本文复制引用
韩广轩,栗云召,于君宝,许景伟,王光美,张志东,毛培利,刘玉虹..黄河改道以来黄河三角洲演变过程及其驱动机制[J].应用生态学报,2011,22(2):467-472,6.基金项目
中国科学所知识创新工程重要方向性项目(KZCX2-YW-223)、林业科技支撑计划项目(2009BADB2B0502-01)、中国科学院百人计划项目、山东省科技攻关计划项目(2008GG20005006,2008GG3NS07005)和中国科学院国家外国专家局创新团队国际合作伙伴计划项目资助. （KZCX2-YW-223）
