Landscape Spatial Structure Of Research In Ecological Corridor In Main Urban Area Of Chongqing

With urban development and environmental issues become increasingly prominent, building eco-city will be the urban construction and development trend in future. Urban ecological corridor,as a necessary "frame" of urban natural landscape, ensuring the integrity and the continuity of the urban natural landscape,raising linkages between green space and enhancing the natural landscape maintenance of ecological health of the city, makes a important role in construction of urban green space system.Chongqing municipality, as the youngest, with the rapid economic development, ecological environment, gets more and more attention. Studing in the ecological corridor of Chongqing existing landscape structure of the system and discussing the problems and shortcomings of current ecological corridor in main urban city, it is important for healthy and continuble development of city, for suppling theory and guidance.This paper study in distribution, structure and function of the ecological corridor of the main urban area in Chongqing on two scales by AutoCAD2006 and Geographic Information System(GIS), it evaluates the service function and finds the problems and shortcomings of current ecological corridor system. The ecological corridor construction, lack of green belt along ecological corridors something natural number, and the lack of ridge distribution, The ecological corridor and rivers of road construction of ecological corridors type to improve rate, especially should strengthen the rapid corridors and beyond the river and the ecological corridor construction, The ecological corridor width is lesser, small core corridor, the ecological corridor network connection insufficient, City green patches of green patches and ecology, no relation between the formation of effective communication. Urban ecological corridor of landscape space structure of overall arrangement and internal from two aspects, including the structure of the network layout, the ecological corridor basic trend, the scale and the internal structure,etc. First, according to ordinary condition and regional character of the main urban area in Chongqing, this study notes suggestions for ecological corridor overall distrubution planning and building. Secondly, selecting research region which is representatinve in the main urban area in Chongqing on the mesoscale,this study discuss the function,shape, width and the internal structure of various ecological corridor in the region, and apply planning suggestion.Thirdly, based on the former research, this study draw improved topological distribution map, calculates related landscape indices were compared with the existing ecological corridor and indicates transformation of an ecological corridor to play a higher ecological benefit.As a result, this paper research on the distribution,width, shape and the internal structure.On the macroscale,urban ecological corridor overall distribution should sastisfy the requirement of ecological network, building the linkage between the earch green patch and the natural background, decreasing the urban heat island effect and so on,at the same time, remaining continuty on various scales.On the mesoscale, when planning and building vairous urban ecological corridors,the ordinary condition, regional character and the forms of land utilization,plays a decisive role on planning purpose and funcation, and then affects the structure of the urban ecological corridor.