水利水电技术2017，Vol.48Issue(7)：20-27,8.DOI:10.13928/j.cnki.wrahe.2017.07.004
基于卫星遥感技术的赣江尾闾河势演变分析
Satellite remote sensing-based analysis on river regime evolution of tail-section of Ganjiang River
张哲源 1徐海珏 1白玉川 1胡晓 1李浩宇1
作者信息
- 1. 天津大学水利工程仿真与安全国家重点实验室,天津300072
- 折叠
摘要
Abstract
As the area of the tail-section of Ganjiang River (the first large river in Jiangxi Province) is the core area including Nanchang City for the economic development of Jiangxi Province,and then the river regime variation of its tail-section area has a great influence on the economy,flood control,environment,etc.of its surrounding regions.The river regime evolution of the channel of Ganjiang River from 1991 to 2010 within its tail-section area is studied and analyzed herein with the satellite remote sensing technology;from which it is concluded that (1) the water area in the study area experiences a changing process of decreasing at first and then increasing,i.e.about 121 km2 in 1991,about 111 km2 in 2001 and about 132 km2 in 2010.(2) the variations over the years in the tail-section area of Ganjiang River are mainly concentrated on its main stream,west branch and north branch,especially the variation of the main stream is most significant,and relatively,the variation of the south branch is most stable.(3) the variation of the main stream of Ganjiang River is represented as the expansion of the river channel and the areas of the central shoals are largely reduced or disappeared,especially the variations of the channel near Nanchang City are most significant;for which it is supposed that the variations are mainly caused by human impacts including engineering constructions,sand mining,etc.(4) the variation of the west branch of Ganjiang River is more complicated,i.e.its upstream section is mainly represented as the expansion of the river channel along with the enlargement of water area,while the downstream channel is contracted in some extent.The channel of the north branch of the river is represented as the contraction of the river channel over the years and the area of its central shoals are significantly enlarged as well,while the mid-branch of the river is varied in some extent,but it is not so significant.关键词
卫星遥感/赣江尾闾/河势演变/江西省Key words
satellite remote sensing/tail-section of the Ganjiang River/river regime evolution/Jiangxi Province分类
建筑与水利引用本文复制引用
张哲源,徐海珏,白玉川,胡晓,李浩宇..基于卫星遥感技术的赣江尾闾河势演变分析[J].水利水电技术,2017,48(7):20-27,8.
