The Study, Based On The Sdss County Eco-environmental Planning

Regional eco-environmental planning is still on the level of researching and developing in theory and methodology. The planning based on evaluation of environmental quality and environmental capacity doesn't take the socio-economic factors into account, which can't solve the ecological environmental problems radically. What's more, planning according to status quo can't realize the conception of sustainable development. The eco-functional regionalization, which is the base of regional eco-environmental planning, is only a basal task of regional ecological environmental planning at present time. Therefore, how to plan through regionalization is another problem that should be researched in ecological environmental planning, both in theory and methodology. In practice, county is a basic unit of administrative region of our country, which fulfils policy of our country directly. Therefore, county ecological environmental planning has great significance and practical reaction in the eco-environmental protection and sustainable development of the county.According to the theory and method of county ecological environmental planning, this paper proposes environmental carrying capacity theory as an important theoretical basis of eco-environmental planning. In the aspect of methodology, this paper utilizes geographic information system, decision support system and spatial decision support system to solves the problem of massive data management and semi-structural and unstructural decision-making in ecological environmental planning.The paper consists of eight sections. The first section summarizes the conception and content eco-environmental planning, and discusses the necessity of county ecological environmental planning. It brings forward the aims of this paper, and it summarize the research content and frame of this paper.The second and third sections summarize the theoretical basis of eco-environmental planning and the supporting technology. The second section reviews the origin, conception, connotation, expressive form of environmental carrying capacity. The third section summarizes briefly the technologies of GIS(Geographical Information System), DSS(Decision Support System) and SDSS(Spatial Decision Support System).The fourth section puts forward another method of developing eco-environmental planning index system, namely, environmental carrying capacity index system on the basis of the progress of the evaluation index system of environmental quality and the county sustainable index system. This section discusses in detail the construction method of environmental carrying capacity index system.The fifth and sixth section are the quantitative models of eco-environmentalplanning. The fifth section is about the quantitative research of environmental carrying capacity. It discusses how to determine the ideal state of county environmental carrying capacity and evaluation criterion and builds quantitative model of environmental carrying capacity. It was applied to the regionalization of eco-environmental and sustainable development status. The sixth section develops a model of eco-environmental planning optimizationg based on environmental carrying capacity optimizing. It adopts the navigational method, recurring to the human-machine system in SDSS system.Take Chongming county as an example, the seventh section puts forward the system structure and realization method of eco-environmental planning spatial decision support system (EEP_SDSS).The eighth section demonstrates the practical application. Utilizing the theory, method and technology mentioned above, this section analyzes the environmental carrying capacity ratio index of Chongming county from 1996 to 1999, and it makes the eco-functional regionalization of Chongming county. Meanwhile, it calculates future carrying capacity of Chongming under four different developmental scenes, and puts forward relevant countermeasure measurements for the sustainable development of Chongming county.The paper contributes to the theory of the problem of regional eco-...