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Study On The Coupling Of Ecological Assets And Economic Poverty In Guangxi County Based On GIS

Posted on:2019-05-06Degree:MasterType:Thesis
Country:ChinaCandidate:X Y BiFull Text:PDF
GTID:2371330548983624Subject:Cartography and Geographic Information System
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Rich ecological resources and a good ecological environment are the basis for human survival,and also a necessary condition for economic development and sustainable use.The population of China is huge and increasing,the economy is developing rapidly,and the ecological environment has become severe.Using GIS and RS technologies,different ecosystems can be accurately divided to realize the calculation of the value of ecological assets in the entire study area and the analysis of economic poverty.This paper takes the Guangxi Zhuang Autonomous Region as the research object,establishes the ecosystem service value equivalent table and economic poverty evaluation index system in Guangxi,accounts for ecological assets,analyzes the pattern of economic poverty,and analyzes the coupling relationship of them.Research indicates:(1)Based on the equivalent value of ecosystem service value per unit area of the country,through the revision of the ecosystem adjustment factors(biomass regulators,soil retention factors,and precipitation adjustment factors),an equivalent value of ecosystem service value per unit area of Guangxi that meets the actual conditions is obtained.Guangxi's water resources production,hydrological regulation,and soil conservation functions are significantly greater than the national equivalent factor,and hydrological regulation and water resources production are almost twice the national equivalent,which is closely related to the fact that the precipitation in Guangxi is higher than the national average precipitation.(2)The value of Guangxi's ecological assets in 2015 was 159.875 billion yuan.Among the 11 evaluated ecosystem service functions,they were sorted according to the amount of ecological service value:hydrological regulation>climate regulation>soil conservation>biodiversity>gas regulation>Purification Environment>Aesthetic Landscape>Raw Material Production>Water Resources Production>Food Production.Hydrological regulation,climate regulation,and soil conservation accounted for 75.5%of the total value.The spatial distribution of ecological asset value is related to topography and vegetation coverage.(3)Select economic poverty evaluation indicators through correlation analysis and use the objective algorithm entropy weight method to calculate the weight of each indicator,We will build a system to evaluate the economic poverty in Guangxi.Using the economic poverty index to measure Guangxi's economic conditions,the overall level of economic poverty is increasing from southeastern Guangxi to northwestern Guangxi.Terrain factors are important poverty-causing factors,and social and economic development can bring about poverty alleviation and alleviate natural conditions.Poverty-causing factors,natural,social,and economical forces formed the overall spatial distribution pattern of economic poverty in Guangxi.(4)Based on the theory of system coupling and the theory of coordinated development,according to the actual situation in the study area and the research needs,the degree of coupling coordination D is divided;based on this,the features of the two major system settings are used to determine the characteristics,thereby correctly determining the two systems.The degree of coupling coordination:The degree of coupling between ecological assets and economic poverty in Guangxi is roughly high in the northwest and southeast and low in the middle;the level of coordinated development is moderate,and the development ecology and economy of most counties are presented as coordinated or transitional adjustments.status.
Keywords/Search Tags:ecological assets, economic poverty, coupling, Guangxi
PDF Full Text Request
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