The Dynamic Changes Of Yanji City Landscape Pattern

China's rapid economic development and the rapid development of urbanization, the natural landscape structure evolution received serious influence. The urban landscape expansion and natural landscape atrophy fragmentation is becoming increasingly fierce, the contradiction between the urban morphology and the sustainable development become urban geography and urban planning research hot spot. The traditional urban spatial structure research based on geographic, economic and social perspective. This paper based on landscape ecology of urban spatial structure view new research.The finished Yanji dynamic analysis, the landscape pattern of 1999 through land use status chart and the 2009 ALOS, get two widths of vector diagram. Use Frag3.3 calculation core landscape index, landscape index of Yanji for analysis,.that the dynamic change of landscape pattern in the finished.1999 until 2009 1241.48 hectares new land area increased. Since 1999, land for residential area increased 374.36 hectares, public facilities 247.47 hectares of land area increased, industrial mining warehouse land use change the area of small scale, the green space 113.13 hectares decreased. Plaques of density per square kilometer in 1999,2009 a recent per square kilometers, the landscape of a 15.7 diversity index decreased gradually.Through space changing patterns of Yanji, new land Yanji mainly concentrated in the original land surrounding, plaques to spread outside gradually. From the streets of land use dynamic mainly to increase the consortium street and Chaoyang street, park street mainly growth slow growth. The space of Yanji variation pattern mainly for spread of development and distract the filling type mixed development.Through the finished land Yanji,1999 metrical pattern of land in 2009 the number increase, plaques, plaques of average size ENN decreases, and plaques increases, the spatial change process is mainly patch, the local area expanded the appearance of new patches. From the patch level structure look, small patches of transformation, plaques to patch amalgamative, average area increased. The patch fragmentation, points dimensions and gathered degrees (AI) reflect the finished land pattern rhythm.Through two years of transfer matrix of landscape type change to determine Yanji transition probability, in 1999 in the finished in 2009, years with land for residential different between public facilities lands land for residential and industrial warehousing, with green land, land for residential happened between the landscape types of conversion. Yanji city landscape structure through analysis and study of Yanji, it is concluded that the future of spatial structure of the goal should determine optimized for ecological city as the goal, conform to the requirements of constructing ecological and sustainable development of urban spatial structure and form. Next we should give full play to Yanji city planning and policy guide and protect the ecological environment, to ensure that, in order to solve the ecological security Yanji city too fast spreading, city enough and compactness of urban land layout is not reasonable.