城市扩张用地效益评价与耦合关系研究——以南京市为例  

Evaluation on Interactive Land Use Benefits and Coupling Relationship in Urban Expansion:A Case of Nanjing City

作　　者：张俊凤[1] 徐梦洁[1] 

机构地区：[1]南京农业大学公共管理学院,江苏南京210095

出　　处：《南京农业大学学报（社会科学版）》2010年第3期63-69,共7页Journal of Nanjing Agricultural University(Social Sciences Edition)

基　　金：国家自然科学基金资助项目(40801062)

摘　　要：城市扩张的社会经济效益和生态环境效益之间存在耦合关系,对二者的协调耦合程度进行研究,可以有效评价城市扩张合理性。本文运用综合评价方法和动态耦合模型,计算了1990—2008年间南京市城市扩张过程中的社会经济效益和生态环境效益综合指数,分析了二者的耦合动态。研究结果表明:南京市的生态环境效益综合指数与社会经济效益综合指数在研究期间均呈增长趋势,但前者增速较缓;生态环境对城市扩张的响应有一定的滞后性,2000年以后,这种滞后性趋向显著;从城市用地效益耦合度变化曲线来看,南京市大致经历了1990—1995年从低级共生向协调发展过渡、1996—2000年的协调发展以及2001—2008年从协调发展向低级共生退化的三个阶段。In the process of urban expansion,there exists a coupling relationship between socio-economic benefits and eco-environmental benefits.Studies on the coupling relationship could lead to the effective judgment on urban expansion.In this paper a comprehensive evaluation method was used to calculate the indicators of both socio-economic and eco-environmental benefits of Nanjing City from 1990 to 2008.Then their coupling relationship was analyzed with the application of dynamic coupling model.Our study showed that the composite indicator of socio-economic benefits and that of eco-environmental benefits both increased during the studying period,with the former at a slower rate.The response of eco-environment sub-system towards urban expansion generally lagged behind that of socio-economic sub-system and after 2000 the response gap between the two sub-systems was enlarged gradually.The coupling relationship during the studying period could be divided into three stages.At the first stage 1990—1995,the two sub-systems evolved from lower-level symbiosis state into coordinative state.Then at the second stage 1996—2000,the two sub-systems underwent harmonious development.At the third stage 2001—2008,the two sub-systems again degraded into the lower-level symbiosis state.

关 键 词：城市扩张 用地效益 动态耦合模型 信息熵法 南京市 

分 类 号：D616[政治法律—政治学]