The Study Of Resources And Environmental Carrying Capacity Based On GIS Technical

Resources and environment is the foundation of human survival and development, with the rapid development of social economy and human on the unreasonable development and utilization of resources, leading to the resource and environment carrying capacity has exceeded the limit, which caused many environmental problems. Therefore, the resources and environmental carrying capacity analysis and research, for human social and economic activities to provide certain theoretical basis and guiding significance. The research is based on the capacity of resources and environment, with the relevant theory and principles of screening indexes, establish resource and environment carrying capacity evaluation index system, basic layer and integrated layer index and the comprehensive evaluation model, supplemented by examples.This study obtained the following results:(1)Study on the index system of the resources and environment as a complex ecological system, from the social economy development degree, resources carrying capacity, environmental vulnerability to the target layer, rule layer and index layer, combining the actual situation of the studied area, with the capacity of resources and environment for the target layer, established three standard indexes,eight integrated indexes and some basic indexes.(2)Resources and environmental carrying capacity model research:through the analysis of the basic indicators of the mutual connection between and on the integrated index function, established the concentration degree of population model, economic development level model, traffic advantage model, land resources carrying capacity model, model of water resources carrying capacity, geological hazard model, ecological environment sensitivity model, overload of environmental carrying capacity model the8integrated index model; through the analysis of the integrated index of contact between the criterion layer and index function, established the social economic development degree model, resources carrying capacity model, environmental vulnerability degree model; based on above models on the role of target, final establish resources and environment carrying comprehensive evaluation model.(3)Model realization technology research:the use of spatial analysis function of GIS and RS remote sensing extraction function based model in grid computing, and the formation of the resources and environment carrying capacity comprehensive model of the integrated technical system. Technical system includes a GIS vector technology, space technology, analysis and calculation of density mapping technology, interpolation, gradient extraction, neighborhood statistics technology as well as the RS remote sensing image pretreatment, visual interpretation technology and results in the expression of the visualization.(4)Model validation:the established a system of resources and environment carrying capacity evaluation index system and model based on selection of Yanggao County as the research object model instance validation, the results and the actual situation of Yanggao County basically, build a model and method has certain validity and operability.