Research On Landscape Pattern Dynamic Change And Predication In Wu Xi

Urban landseape pattern research plays an important role in urban landscape ecology research. It mainly includes urban landscape pattern and its dynamic analysis, urban landscape pattern research method,urban landscape structure optimization and control. Along with the rapid economic development of Wuxi and the acceleration of urban and rural integration, the landscape pattern of the whole city is changing. This research use there terms remote sensing data in 2001, in 2004, in 2008, based on RS and GIS technology and the principle of landscape ecology, research the characteristics of Wuxi'landscape pattern and dynamic change, predict the development trend of each landscape type, We can draw some conelusions from this paper:(1)According to the feature of land use in Wuxi, we divided Wuxi' landscape types into forest, water, agricultural land, construction land, park and green land. The analysis of landscape pattern index shows that total landscape patches, Patch Density and Landscape Shape Index are rising, the number of patches grows from 4262 in 2001 to 7141 in 2008, Patch Density grows 1.5 times, Landscape Shape Index grows from 47.96 to 56.24,Edge Density is on the rise, landscape overall connectivity is reduced, fragmentation increase.(2) The landscape pattern dynamic change analysis shows that,from 2001 to 2008, The area of agricultural land is reduced from 41.04% to 30.56%;Construction land area increased from 347.09 km2 into 558.68 km2 in 2008, the waters area is basically unchanged, forest area first increased and then decreased, park green land area first decreased and then increased,reduced 26.3 km2.We can see the develop trend of each landscape type from the area chang chart and related data.Water and forest move from the edge, the majority of the transfer part of agricultural land change into construction land,the increased part of construction land is bigger than the transfer part, the conversion phenomenon is notable among urban green space,agricultural land and construction land.(3)We use Markov model to predict the changing trand of landscape pattern of Wuxi. Forest area and agricultural land area will be reducding, construction land area and park green land area will be rising, water area basicly remains unchanged. According to the characteristics of Wuxi'landscape pattern, we analyze the problems existing in the landscape pattern, give suggestions about the optimization of each landscape type,in order to realize the sustainable development of urbanization of Wuxi.