基于城市化与环境的耦合协调互动特征构建了耦合协调理论模型,对1985～2007年广西城市化与环境系统的耦合度和协调度进行了测度和互动关系分析。研究结果显示:从耦合度的时序来看,1985年以来广西城市化与环境系统基本处于交互耦合的颉颃阶段,1985～2001年城市化-环境耦合系统的耦合度从0.187上升到0.500,系统在演化过程中经历了一个"S"型的周期性变化,跨越了低水平耦合、颉颃阶段,在2001年进入磨合阶段,但之后系统的耦合度又退回到颉颃阶段,并在2007年达到了极小值。从耦合协调程度的时序看,广西城市化与环境系统的耦合协调程度也较低,基本还处于中低水平。这说明广西逐年加快的城市化进程给环境带来了越来越大的压力,需要正确处理和协调快速发展的城市化与日益严峻的环境状况之间的关系,尽快采取措施促使广西城市化与环境系统向耦合协调方向发展。

Based on the coupling and coordinative characteristics of urbanization system and environment system in Guangxi,taking environment and urbanization as two composite systems respectively,through the quantitative integration measure,the paper aims at probing into the coupling interaction and coordinating relationship of urbanization and environmental system of Karst region in the southwestern Guangxi,China.In order to properly handle and coordinate the conflict between increasingly sped-up urbanization and serious ecological environment,and to provide the theory basis and the practical guidance for realizing environmental coupling and coordinated development,the paper constructs theoretical models of urbanization and environment to measure the coupling and coordinative degrees and analyze the interactive relationship between urbanization and environment of urbanization and environment composite system from 1985 to 2007 in Guangxi.The results show that the coupling degree of urbanization and environment system is low,and the time sequence of the coupling degree in Guangxi is basically at resisting stage from 1985 to 2007.The coupling degree of urbanization and environment system had risen from 0.187 to 0.500 in 1985–2001,and the system had undergone one "S" type evolutionary cycle which went across low-level coupling,antagonist,and then running phase in 2001.The degrees of coupling and coordinative between urbanization and environment system had gradually decreased since 2002,which reached the lowest position in 2007.Besides,the coupling coordination degree of urbanization and environment system is low,which are basically at low stage.This shows that the sped-up process of urbanization system in Guangxi in several years has brought more and more pressure to its environment system,so it is necessary to correctly handle and coordinate the relationship between the rapid developing urbanization and the increasingly severe environmental condition in Guangxi,and the measures should be taken as soon as possible to urge the development direction of the coupling urbanization and environment system coordinately.To change the present situation of lower coupling and coordination degrees of urbanization system and environmental system in Guangxi,and to prevent the continuing growing pressure on the environment,the government,the enterprises,together with the residents,should control their own behavior in order to response to the coupling and coordination system in time.The behavior,including policy guidance and effective implementation,application of environmental technology,the guide of market mechanism,and the strengthen of public environmental awareness,will all influence the urbanization process and the state of the environment improvement through the direct feedback mechanisms,and transform the urbanization and environment to benign coupling coordination and promote sustainable change direction together in Guangxi.