The Impact Of Land Use Change On The Value Of Ecosystem Services In Zhuzhou City Based On RS And GIS

Land-use is a manifestation of human-land relationship,it's change can directly reflect the activities of human beings.It is the main field of human-land relationship research.Which plays an indispensable role in China's sustainable development research and is also a popular research of global environmental change.Land-use change affects the service value function of ecosystems by changing the structure,process and function of ecosystems.Understanding the change of Land-use and its ecological service value has great significance for exploring regional economic and ecological development.Zhuzhou is an important pole of the construction of “3+5 Changzhutan” urban agglomeration.Land-use has significant changes as the advance of industrial development and urbanization,it's inevitable to bring degradation of land resources,destruction of ecosystems and more environmental issues.In order to reveal the temporal and spatial variation of ecosystem service value in Zhuzhou City under the change of Land-use,this paper applies RS and GIS based on the research ideas of Land-use landscape pattern and ecological value based on previous studies on Land-use change and ecosystem service value.Technology and multi-temporal remote sensing image data studied the Land-use change and driving factors in Zhuzhou City from 1995 to 2015.The impact of Land-use change on the value of ecosystem services in Zhuzhou City from two perspectives is an attempt to study the value of ecosystem services in this context,in order to provide reference and background information for the construction of ecosystems in Zhuzhou City.The main conclusions of this study are as follows:(1)This paper used the remote sensing images data of 1995,2001,2005,2009 and 2015 to obtain 5 phase land use classification results of Zhuzhou City.and interpreted the cultivated land by using the human-computer interaction visual interpretation method.The cultivated land,forest land,construction land,waters and unused land were interpretated.Finally,the paper selected the result of maximum likelihood classification as the basic data through the method comparison.(2)Analysis of Land-use change in Zhuzhou City from 1995 to 2015 shows that Land-use change in the study area is a continuous increase in construction land,an increase in cultivated land area,a decrease in the proportion of forest land area,and the latter two are fluctuating,and the overall changes of other types of land features The Land-use dynamics has great change from 2001 to 2009.The area of cultivated land and construction land which comes from forest land accounte for the largest proportion in 20 years.In the past 20 years,the degree of Land-use landscape fragmentation first weakened and the landscape heterogeneity first decreased.After the increase,the construction land has low connectivity and high degree of fragmentation,the ridges in the forest land have a high degree of connectivity,and the degree of fragmentation is the lowest among all types.(3)Built a driving factor system based on the result data and the yearbook data,then constructed the driving force model of land use change in the study area under the methods of factor analysis and principal component analysis.The population growth,GDP and industrial output value,fixed-asset investment in the whole society,and industrial restructuring are the main driving force of Land-use change in Zhuzhou City.(4)This paper discussed the value of ecosystem service in Zhuzhou City based on the grid data.Calculated the ecosystem service value of Zhuzhou City from 1995 to 2015 with the ecosystem service value evaluation model and GIS spatial analysis method,and discussed the ecosystem of Zhuzhou City in 20 years.then revealed the spatial distribution pattern of the ecosystem service value of Zhuzhou City,which can provide a scientific reference for the sustainable development of the city's ecosystem.