基于TOPSIS法的赣江水源区城市发展与水资源环境协调性评价

以赣江上游城市为例,通过构建经济规模、效率与结构和水环境压力、状态和响应等6个方面的指标体系,运用TOPSIS法对赣州市区2001—2011年的城市发展与水资源环境的协调程度进行定量评价。结果表明,城市发展与水资源环境的协调系数逐年增加,并呈现出3个阶段的“阶梯式”发展特征;协调水平不断优化,从“较不协调”逐渐向“较协调”转化;城市发展与水资源协调状态正向与逆向并存,局部变化起伏明显,且存在“疲软恶化”风险。为了保障城市发展与水资源环境保护同步优化,还应加强水资源生态系统规律研究,引导资源产业优化升级,提高污水处理能力,推动地区间横向生态补偿机制,破解水资源保护资金短缺困境,进而为实现水源保护区社会经济有序发展提供参考。

COORDINATION EVALUATION OF URBAN DEVELOPMENT AND WATER ENVIRONMENT IN GANJIANG BASED ON TOPSIS

This paper,based on a case study of a city in the upper reaches of the Ganjiang river,sets up an index system from economic scale,efficiency and structure,water environmental pressure,status and response,and uses TOPSIS to quantitatively evaluate the coordination degree of urban development and water environment of Ganzhou from 2001—2011.The results indicate that the coordinated coefficient of urban development and water environment rises with years showing a phasing development of three stages.The coordination level has been continuously optimized from non-coordination to coordination;but the reis a co-existing positive and reverse coordination state with local fluctuation at a possible risk of deterioration.In order to guarantee urban development and water environmental optimization,this paper suggests enhancing study on water resources ecology,optimizing and upgrading resources industry,increasing polluted water treatmentability,promoting transversal ecological compensation and overcoming the shortage of water protection funds.