Space Differentiation Of Ecosystem Services Value In Wuhan City

The survival of mankind cannot leave the gift of nature,nature provides human beings with many service functions,and that support the healthy survival and sustained development of human.In the development of the long-term industrialization of Wuhan city,excessive human disturbance destroyed the original natural landscape,ecological system has suffered considerable damage,lake shrinking,arable land decreasing,water and atmosphere continues to be a serious pollution and so on,it has brought all kinds of environmental problems.Green water and blue hills is gold hills and silver hills,ecological value is the value of green water and blue hills,a long-term human economic activities has ignored this part of the stealth value that has really existed.For Wuhan city,knowing this part of the value will offer bottom spirit and capital on the green development.Refer to previous studies,combining the reality of Wuhan,this paper screens eight measures of service function:the net production of organic matter,fixed carbon and release oxygen,nutrient storage,entertainment and leisure,regulating climate,keep the soil and water conservation,environmental purification.Downloading remote sensing data,interpreting and classifying land of Wuhan city,the Wuhan city is divided into six categories of ecological system:forest land,cultivated land,grassland,water area,construction land and unused land.using remote sensing technology and GIS evaluate ecosystem service function of Wuhan city and 13 districts.In 2013,the Wuhan city ecosystem net production 1.5422 million t Carbon,a total of 23.997 billion yuan of ecological value,the largest contribution value of forest land and water area.In eight measures of service function value,the net production of organic matter is the highest,up to 9.237 billion yuan,in 13 districts,Huangpi district is the highest,up to 6.514 billion yuan,Hannan district's unit service function value is the highest,up to 3.9957 million per square kilometers.District's area and urbanization level is the main driving factor of space value differences.The paper combines with the research results and Wuhan city ecological construction planning,mainly from two aspects of policy and management,provides suggestions for the ecological construction and green development of Wuhan city,explores a good way for the protection of urban ecological value.