期刊论文

Changes of river system and its response to highly urbanization,China

Xu, Y.

中文

水科学进展

1001-6791

2019

30

2

166-174

10.14042/j.cnki.32.1309.2019.02.002

国家重点研发计划资助项目(2016YFC0401502) 湖南省社会科学成果评审委员会课题(XSP18YBC312).

本校为第一机构

针对长江三角洲地区高度城镇化对水系剧烈影响的事实,以该区太湖平原苏州市为例,选取河网密度、水面率、分形维数和支流发育系数作为水系变化指标,运用GIS分析近50年来河网的时空变化规律,在此基础上,研究水系变化对于城镇化及降水变化的定量响应,分析高度城镇化下水系的发展趋势。结果表明:①近50年来研究区水系呈衰减趋势,河网密度、水面率、分形维数和支流发育系数分别下降5.6%、19%、1.2%和3%;区内水系禀赋差异大。②近50年来水系衰减的主要影响因素为城镇化,气候变化对其影响相对较弱;在水系变化中,城镇化的贡献率在67%以上。③随着城镇化率增加,研究区河网密度、分形维数、支流发育系数呈...

The purpose of the study is to analyze the response of river system to the climate change and rapid urbanization process in Suzhou,Taihu Lake plain area. The study selected the drainage density,water surface ratio,fractal dimension and tributaries development coefficient as representative parameters. Based on GIS technology,the spatial and temporal variation of river networks caused by urbanization and climate change in the study area in the past 50 years was analyzed. On this basis,the study focused on the quantitative response of river networ...