The Reasons of Urban Wetland Erosion and Protection Measures——A Case Study in Fuzhou City

Urban wetland is an important part of urban ecological environment.Thus urban wetland protection not only conductive to the solution of urban environmental problems,but also help achieve a sustainable development of the cities.Based on the background of ecological civilization construction,this paper analyzes the current situation of urban wetland,as well as the reasons of its erosion in Fuzhou city.Aiming at protecting urban wetland,this paper analyzes the erosion of urban wetland in Fuzhou city by using the two theories of Pareto optimality and Externality.Finally,it puts forward some effective methods and measures to protect urban wetlands.