Analysis of the reasons and restoration strategy for ecological degradation of lake wetland
As an important type of wetland,lake wetland plays an important roles in the natural ecosystem,for instance,water conservation,pollution stagnation and silt prevention,water purification,erosion prevention,flood and waterlogging control,sightseeing and biodiversity maintenance,also acting as habitat of all kinds of birds and benthic animals.There are still a wide range of environmental problems in lake wetlands,such as wetland encroachment,water enrichment,simplifica-tion of vegetation,reduction of biodiversity and decline of ecological service function value,which have become the crux re-stricting the sustainable development of local economy.By the ecological conditions of wetlands vary greatly,and there is no unified restoration mode and practice for the lake and wetland ecosystem.Through the literature data,the ecological degra-dation of lakes and wetlands in various places was analysized,the environmental inducement of lake wetland ecological deg-radation summarized,the problems and deficiencies in the current ecological restoration project reviewed,and decision-making suggestions for the ecological protection and restoration work in the future were put forwand.
Lake wetlandEcological degradationReasons analysisRestoration