Research On Comprehensive Carrying Capacity Of Land Resource Environment Based On GIS

With the rapid growth of the world's population,people's excessive use and consumption of natural resources have caused a series of ecological and environmental problems,such as reduced cultivated land,forest destruction,soil erosion,and desertification.The contradiction between population,resources and environment is increasingly tax-oriented.The theoretical research on the bearing capacity of land resources at home and abroad is deepening.Land resources are the fundamental conditions for human survival and development,and are the most precious scarce resources for human beings.China's urbanization process is accelerating.As the main factor affecting the core competitiveness of the region,land resource carrying capacity is an important condition for supporting the urban population and the sustainable development of economic,social and cultural activities.With the increasing population of the city,land resources can no longer meet the needs of development,and the contradiction between population increase and land resource shortage becomes more and more obvious.The land resource carrying capacity will become an indispensable part of the urbanization process.In recent years,while achieving rapid economic growth,large-scale industrialization,and brilliant urbanization in China,it has also paid a heavy resource and environmental cost,over-exploitation of land and the impact of other human activities have made land resources face the most serious situation ever.The contradiction between economic and social development and resources,environment and ecology has become increasingly prominent.From the perspective of sustainable use of land resources and environment,it is also necessary to evaluate the environmental carrying capacity of land resources.Carrying out research on land resource carrying status assessment will be conducive to the construction of land resources environmental carrying capacity evaluation and monitoring and early warning system,which will form a targeted land space development guidance and control policy mechanism,which is conducive to comprehensively promoting resource conservation and utilization of land and space.Pattern optimization,natural ecosystems and environmental protection,and provide basic support for the preparation of relevant planning such as land planning and land use planning,and provide services for the formulation of land and resources related policies.The main productions of the dissertation contain:(1)The current situation of carrying capacity of land resources and environment in the study area is sorted out and analyzed.This is the basis of the comprehensive carrying capacity evaluation in this paper.This is the basis of the comprehensive carrying capacity evaluation in this paper from the aspects of data acquisition,processing analysis and status analysis,the general situation of land resources and environment in the study area.(2)the carrying capacity evaluation system is analyzed and studied: based on the current situation of all aspects of the research area,the key links of the evaluation index are analyzed and discussed,and the evaluation index system applicable to the research area is proposed.(3)completed the construction of evaluation index system based on GIS technology: through the use of GIS related software,combined with the expert scoring method,analytic hierarchy process and other methods,organically combined the impact factors of the current situation of the research area with the evaluation index system,and completed the multi-scale evaluation of land resources and environment carrying capacity based on GIS.