Evaluation Of The Value Of Ecosystem Services In Urban Lakes And Wetlands

Wetlands are known as the "kidney of the earth",which can provide various goods and services related to the survival and development of human society.As a scarce natural resource,urban lake wetland ecosystem has great ecological service value in cities because of its unique attributes,and scientific evaluation of the ecological service function value of urban lake wetland is of great significance for regional ecological environmental protection and economic development and utilization of wetland.This thesis uses the relevant theories of ecology and economics to estimate the ecological service value of Jinyinhu Wetland and let people understand the ecological value of Jinyinhu Wetland Park more intuitively.Taking Jinyinhu Wetland Park as an example,this thesis takes Jinyinhu Wetland Park as an example,according to the types and manifestations of ecological benefits generated by Jinyinhu wetland ecosystem,the types of ecological service functions of Jinyinhu wetland are determined,and they are divided into four types: supply service value,regulation service value,cultural service value and support service value,including material production value,water conservation value,flood regulation value,climate regulation value,carbon sequestration and oxygen release value,water purification value,and leisure and recreation value,scientific research and education value and biodiversity value,using the market value method,shadow engineering method,alternative cost method,conditional value method and achievement parameter method to evaluate the values of Jinyinhu Wetland Park,and the main conclusions are as follows:(1)The value of ecosystem services in Jinyin Lake wetland is 448,157,200 yuan per year.Its Chinese service value was the largest,399.98 million yuan / year,accounting for 89.25%of the total value,followed by the adjusted service value,48.0106 million yuan / year,accounting for 10.71% of the total value,and the supporting service value was 166,600 yuan /year,accounting for 0.04%.(2)The order of ecosystem value of Jinyinhu Wetland Park is: leisure and recreation value> climate regulation value> carbon sequestration and oxygen release value> flood storage value> water conservation value> water purification value> biodiversity value>scientific research and education value.In view of the protection and management of Jinyin Lake wetland,this thesis puts forward the following suggestions: Pay attention to the ecological service functions of urban lakes and wetlands;Rational use of Jinyin Lake wetland resources;Strengthen the prevention and control of lake water pollution and improve the quality of water sources;Formulate the plan of Jinyin Lake wetland ecological function area;Mobilize citizens to participate in the protection of wetlands.