Research On Ecological Land Use Change And Value Of Ecosystem Service In Ruijin Based On Remote Sense And GIS

Ecological land use refers to the provision of environmental control and ecological conservation of ecosystem services,such as land-use types,in the maintenance of ecological balance and sustainable development of the region in which it plays an important role.Ruijin city in Jiangxi province,Southeast of important ecological tourist city,with rapid economic development and continuous expansion of urban construction land and frequent human activity,land use change,which have been affected to a certain degree of ecological land-use change,Ruijin,eco-urban construction land use and conflict all the more prominent.Paper with RS and GIS software on 2000,and 2005,and 2010,and2014 four period remote sensing image for classification solutions translation,combined ecological with to of concept,will ecological with to is divided into arable land,and woodland,and grass,and wetland and he with to,using land using moving attitude,land using transfer,mathematics method on Ruijin 15 between ecological with to of changes for has research,in this based Shang,according to ecological service value evaluation method on Ruijin ecological service value for has measuring,while from single service value,and Ecological service value flow analysis of the ecological land use changes and the relationship between changes of ecological service value,based on the protection of ecological land,increase the value of ecosystem services concept,presents reasonable and optimizing the allocation of ecological land use proposals.Results of this study showed that:(1)Decreasing the number of ecological land in the study area,and the increasingly rapid reduction.Ecological land types in the study area between complexity and ecological land types increasingly unstable.From an overall perspective,2000-2014,Ruijin ecological land transfer is mainly farmland,woodland,grassland and land conversionbetween cultivated land and woodland,a large number of ecological land turned to construction land is the main reason.(2)Based on ecological analysis on driving force of land use change in Ruijin city,characterized by demographic,economic,development and the impact of policies on ecological land-use change.(3)The ecosystem services value in the study area and analysis of individual ecosystem services research showed that from the overall value,declining ecosystem service values in the study area in 2000-2014.From ecological land types,different variation of different ecological land types,all kinds of ecological land type of ecosystem service values the overall downward trend,ecological services value of cropland,grassland,other lands decreased,woodland and wetland ecological service value increase or decrease alternated.From the value of ecosystem services of unidirectional,soil formation and conservation,waste management,climate regulation and a decline in ecosystem services value of gas regulation is an important factor causing reduction of the value of the ecosystem services.(4)From ecological service value flows view,2000-2014 years between caused research district ecological service value of main flows for: a is ecological with to between of transfer,woodland,and wetland to arable land,and grass and other with to transfer,ecological service value changes is unlikely to,slightly has reduced;II is ecological with to to construction with to transfer,various ecological with to to construction with to transfer,transfer area larger,led to ecological service value obviously declined.