The Value Change And Driving Force Of Urban Inner Lake Ecosystem Service Value

The ecosystem service function and value are the manifestation of the ecological value of land use.As a micro-ecosystem,the urban inner lake is one of the subsystems of the urban system.Unlike the general urban construction land space in urban built-up areas,the urban inner lake ecosystem can be used as the natural ecological space of the city,which plays an important regulatory role in alleviating the ecological pressure of the city and improving the local microclimate of the city.Therefore,it is necessary to study its ecosystem service value and clarify the driving factors of this change.In this study,the "Great East Lake System" in Wuhan was selected as the research object,for found the change of ecosystem service value and its driving force of the urban inner lake group.The main research contents and ideas are as follows:(1)By means of literature analysis and extensive reading of existing literature,established the theoretical basis of this study.(2)By collecting socio-economic data;and then establishing the data analysis basis of the study area through the data of land use status obtained through remote sensing interpretation.(3)Using the spatial statistical analysis of GIS,the land use change and land use transfer matrix of the study area were established,and the land use change process of the urban inner lake group during the study period was analyzed,which laid a foundation for the measurement and calculation of the ecosystem service value of the study area.(4)The revised Equivalent Scale of Ecosystem Service Value per Unit Area in the study area was obtained by the revised coefficient method,and then the quantitative evaluation was carried out with the help of the measurement model.(5)With the help of land use change analysis,the change of ecosystem service value and its driving force in the study area were qualitatively analyzed on the basis of quantitative analysis.(6)Combining the quantitative and qualitative analysis of the study,the paper puts forward an optimized management scheme for the ecological management and green sustainable development of the urban inner lake group represented by the "Great East Lake System" in Wuhan.The study found that the ecosystem service value and ecosystem service value structure of the study area changed in varying degrees with the change of land use.Through the study on the change of ecosystem service value,the study further discussed the driving mechanism of the change of ecosystem service value in the study area which based on the characteristics of land use change.And it is found that the main driving forces of ecosystem service value change in the study area are farmland ecosystem and water ecosystem.The former is one of the main sources of ecosystem service value in the study area,while the latter is the core source.From the driving analysis of ecosystem service function,the hydrological regulation,water resources supply,environmental purification and climate regulation functions of the study area have the highest value contribution rate.From the perspective of socio-economic and policy-driven,the ecosystem service value of the study area increased slightly at first and then decreased significantly during the study period,which is related to the urbanization development of the study area and the rapid expansion of construction land.However,with the implementation of a series of lake protection policies in Wuhan,the main body of lakes in the study area has been well protected and the ecology of the study area has been curbed.The value of system services plays an important role in further declining.In order to promote the construction of ecological civilization and strengthen the ecological management of urban inner lakes,we can optimize the urban ecosystem through improving the function of ecosystem system,promoting the management of ecological assets,optimizing the management system of urban inner lakes,establishing a long-term ecological protection mechanism,strictly enforcing laws and regulations,encouraging and strengthening public supervision,and so on,so as to achieve better green development.