[目的]研究昆明市城市化进程及其对滇池水环境的影响.[方法]以昆明市为研究对象,应用层次分析法,通过建立复合指标评价体系对1998～2008年昆明市的城市化水平进行测度.另外,通过水质综合污染指数数学模型计算滇池的水质污染综合指数,并引入环境库兹涅茨倒U曲线,建立城市化水平与滇池水环境质量的耦合模型.[结果]1998～2008年昆明城市化水平呈不断上升的趋势,表现为前期城市化水平较低,增长速度缓慢,2002年以前低于0.30,后期增长快速,2008年达0.75；滇池草海和外海的水质污染综合指数表明,草海和外海均受到很大程度的污染,其中草海的污染程度较高；通过环境库兹尼茨倒U曲线模型看出,昆明城市化水平与滇池水质污染综合指数基本呈现倒U型,城市化水平为50％左右时出现拐点,目前昆明城市化与滇池水环境的相互作用仍处于拮抗阶段.[结论]该研究为城市化进程与水环境之间关系的分析提供了科学参考.%[ Objective ] We aimed to analyze the urbanization process of Kunming City and its impacts on the water environment of Dianchi Lake. [Method] Using the Analytic Hierarchy Process (AHP) ,we assessed the urbanization leve of Kunming in 1998 -2008 based on composite indicator evaluation system. Afterwards, we calculated water pollution composite index of Dianchi Lake and introduced the EKC to set up a coupling relationship model between the urbanization level and water environment quality. [Result] During 1998 -2008,the urbanization level of Kunming increased gradually,that is,it was lower than 0. 30 before 2002,with slow growth; at the later stage,it grew fast,and reached 0.75 in 2008. Water pollution composite index of Dianchi Lake showed that Dianchi Lake was polluted seriously,especially Caohai. From the EKC,we can see that the relationship curves between the urbanization level of Kunming and water pollution composite index of Dianchi Lake were akin to inversed U shapes, and still at an antagonistic stage at present. [ Conclusion ] The research could provide scientific references for discussing the relationship between urbanization process and water environment.
展开▼
