| Dujiangyan, having a long history of 2,200 years, maintains the ecological balance and security of Sichuan plain since ancient times. Dujiangyan and Mount qingcheng, tighted contiguous, form a unique geographical location. That, having tourism resources of abundant with natural and cultural landscape, diverse vegetation types, exotic mountain shapes, is one of the national key scenic spot in first publication.In this study, spatial structure, evolution and optimization of Mountain qingcheng-Dujiangyan scenic spot scenic features was researched, guided by the fractal theory for the first time, by the field investigation. The results are as follows:(1)Landscape Resources and land use on Mountain qingcheng-Dujiangyan scenic were analyzed and evaluated. Type of landscape resources are rich,the largest with water features such as rivers and lake basins, followed by landscape and health scene. The whole system of landscape spatial structure are so obvious by each splice form, superposition, bite of topography.The land use structure of studied area are complexed, integrated with functional areas, scenic areas and protected areas. Land use type according to area is: landscape lour land, forest, water, garden, residents of social sites, tour facilities sites, traffic and engineering land, cultivated land.(2)The fractal method to study the system spatial structure of scenic area is feasible. 84 representative attractions in the sample of 166 sites, in accordance with development time, development efforts and the fractal structure,were selected,and be divided under different ecological terrain characteristics, human disturbance and land use characteristics.They have 18 fist fractal structural characteristics spots,66of secondary fractal structure spots.(3)Fractal characteristics of the spatial structure in the studied area are revealed, based on systematic analysis of the scenic space structure and fractal as theoretical basis, through analysis in terrain data and measured data of Mountain qingcheng-Dujiangyan scenic spots.The characteristics is strong spatial distribution of cluster sites, high order system, compact spatial structure, and having trends of self-organizing optimization.However, the self-similarity of shape types of the three components is different. The self-organization development trend advantages of former Mountain Qingcheng is the strongest. the Dujiangyan scenic is most stable. The Mountain Qingcheng scenic needs most optimization.(4)The evolution of spatial structure was studied by Fractal theory and GIS technology. Studied area attractions has the trends of homologous (increasing or decreasing) from the centertrend to the periphery, and the rates are different in different directions.On this basis, the evolution mechanisms affecting spatial structure was revealed and described: Self-organization within the system of scenic attractions and External organizations of Space External, the unity of opposites them promote structure development. (5)Optimization strategy of Mountain qingcheng-Dujiangyan scenic spot scenic space system were proposed, both the value-based rational optimization including natural value, cultural value and economic value on the basis of fractal structure. The different focus in spatial structure developing of the Dujiangyan scenic spot, the former Mountain qingcheng and the Mountain qingcheng were pointed out, ideal spatial patterns were proposed based on fractal theory optimization and maximizing rational value, through self-organizing feature of Morphological evolution, system development of the center, the overall Integration level, local integration, as well as the relationship structure analysis between Entirety and locality.
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