水力发电学报2014，Vol.33Issue(3)：165-170,6.
水沙变化对长江口海岸线影响的研究
Study on influences of changes in runoff and sediment load on coastline of Yangtze estuary
摘要
Abstract
To analyze the evolution of the Yangtze estuary,ten remote sensing images were used as data source,one image for each of the years 1989 and 2000,and two images for each year from 2006 through 2009.After classification and processing of data source,relevant data of coastlines and land area in the study area were extracted automatically from these images,and the relationships between coastline changes and changes in runoff and sediment load were examined by using the records of the Datong hydrological station.The results show that the estuaty's area is greatly affected by the changes in runoff and sediment load at this station.During 1989-2009,its annual average was proportional to the annual averages of ruoff,sediment concentration and water-sand ratio.Conditions of greater runoff or greater sediment concentration favor the estuary development.关键词
河流泥沙工程学/遥感图像/水沙变化/岸线/长江口Key words
river sedimentation engineering/ remote sensing images/ changes of runoff and sediment load/ coastline/ Yangtze River estuary分类
建筑与水利引用本文复制引用
李曦尧,李梦楚..水沙变化对长江口海岸线影响的研究[J].水力发电学报,2014,33(3):165-170,6.基金项目
国家自然科学基金(51279062) （51279062）
