A Research Of Wuhan Water Environment Management On Externalities Horizon

In today’s world the rapid economic development and population expanding circum stances, to protect the water environment quality, make corresponding policy to meet different function demand is many countries face a common problem. As with the rest of the world, China also faces the water environmental degradation, water shortage and pollution serious problems. Since the reform and opening up, although the rapid development of industrialization and urbanization, but it’s accompanied by the dramatic deterioration of urban water environment also discourages its healthy development of important factor. Since water environment of public product sex, urban development will affect the water environment, produces externalities, this kind of influence is virtually private income or private cost to society by externality caused transfer. The traditional urban water environment management was as a government "unproductive welfare", not sustainable.This article through four parts:the first part of main introduction research significance, the research background, the main contents, methods and ideas, domestic and foreign research present situation, externality, water environment and the definition of the management of related. The second section describes the wuhan water environment management status and problems. Including water quality status, binjiang environmental governance, sewage treatment facilities construction, lakes and protection, drainage facilities construction and Hong Kong wetland protection regulation, drainage. And an overview of wuhan water environment management problems including serious water pollution, lakes ecosystem destruction, lakes and quantity of groundwater plummeted, local, aiming at these problems, and the corresponding countermeasures. The third part is mainly from the perspective of externality of wuhan city water environment management of inefficient reasons. Including the externality theory is introduced and externalities cause analysis. The fourth part in wuhan water environmental protection and management countermeasures were put forward Suggestions. Including reform of management system. establish and perfect the water environment management regulation system. strengthen water quality monitoring and regulation, adopt corresponding administrative market means to increase investment and strengthening the consciousness of water-saving citizens. Combining with the current of wuhan city circle actively building a resource-conserving, environment-friendly city based on the background of the consideration, the Angle of externality in wuhan, this paper analyzes the water environment management, combining the current situation and existing problems of wuhan city "better than water but the sorrow in water", expounds the present situation of water environment govern in wuhan can not only ensure superior water conditions, but also can for wuhan in hubei province and even the whole city circle the sound and rapid eco-social development provide strong support.