A Case Study of Ecological Regionalization in Chongqing Three Gorges Reservoir Area

The ecological regionalization is the foundation of the implementation of the regional protection of the ecological environment construction and scientific management.The ecological status of the Three Gorges reservoir area is of importance,and the ecological function zoning for the Three Gorges reservoir area is the infrastructure work of ecosystem management and maintenance of ecological diversity.This paper is to study the 23 districts and counties of the Three Gorges Reservoir Area(Chongqing) affected by water storage along the Yangtze River,select indicators of screening by the use of space variability analysis and establish the indicators response to the purpose of regional differentiation,characteristics and scope of ecological function zoning.In the use of quantitative analysis(Clustering system) and qualitative analysis(graphic overlay) method,the Chongqing Three Gorges reservoir area will be divided into six major ecological function areas(The metropolitan economic development ecological zones,the mill valley parallel mountainous and hilly agro-ecological zones outside the city ring,Mill valley parallel mountainous and hilly agriculture and forestry ecological zones of hinterland of the reservoir area,the karst topography ecologically sensitive areas of the Three Gorges reservoir area,the artificial wetland ecological zone of the Three Gorges reservoir drawdown,Three Gorges Reservoir water ecosystems(rivers)),providing a preliminary framework and the scope and scale of the management for the ecosystem management of Three Gorges reservoir area in Chongqing.