城市水系连通性评价体系研究.docx

城市水系连通性评价体系研究
孟祥永1 ,陈 星1 ,陈栋一2 ,张其成1 ,朱引弟1
( 1. 河海大学水文水资源学院,江苏南京 210098; 2. 淮安区水利局,江苏淮安 223200)
摘要: 在参考城市水系结构连通性评价的基础上,对其指标进行筛选,从水系连通的驱动因素和水力效果出发,增加了水系水力连通性评价的内容,选用河频率、河网密度、水系连通度、区域水流动势及河道输水能力等评价指标构建了区域尺度下的城市水系连通性评价体系。淮安区城区水系的应用实例表明,城市水系连通性评价体系能够综合地反映城市水系连通状况。
关键词: 城市水系; 水系连通性; 水流动势; 评价体系; 淮安市淮安区水系
中图分类号: TV212. 5 + 1 文献标志码: A 文章编号: 1000-1980( 2014) 01-0024-05
Evaluation system of urban water system connectivity
MENG Xiangyong1 ,CHEN Xing1 ,CHEN Dongyi2 ,ZHANG Qicheng1 ,ZHU Yindi1 ( 1. College of Hydrology and Water Resources,Hohai University,Nanjing 210098,China; 2. Huai’an Water Conservancy Bureau,Huai’an 223200,China)
Abstract: Based on a survey of the evaluations of the structure connectivity of urban water systems,we selected the evaluation indicators,increased the content of evaluation of the water systems’hydraulic connectivity from the perspectives of the driving factors and hydraulic effect of the water system connectivity,and constructed a regional- scale evaluation system for urban water system connectivity using indices including the amount of rivers per unit area,the work density,the connectivity of the river system,regional water flow potential,and water transport capacity of the river. An application of this evaluation system to the urban water system of the Huai’an District shows that the system prehensively reflect the connectivity of urban water system