On The Evolution Characters And Influencing Factors Of Huaihua Urban Morphology

City, a form of material and spiritual civilization in the process of human development, is a cognization and adaptation of nature and a place fit for human life. Urban morphology is an accumulation of material and spiritual civilization in different historical stages of urban development, changing with the city's development. China's present urbanization process is at a period of accelerated development and the city is in a fast-growing stage. The reach of the urban morphology's evolution and impact factors contributes to the development of a more rational urban development planning strategy, guiding the city's continuable and structural development. On the current domestic research results, we find that people pay more attention to the eastern coastal areas and cities with a longer history, reverse for the central region and short history cities.This paper chooses Huaihua, a new central city ,to carry out the research ,taking urban land use and the expansion of space as a starting point, basing on the city planning maps, Huaihua City 1:10000 topographic maps, land use maps, remote sensing image map, socio-economic and other relevant statistical datas and also using many different research methods as Geographic Information System software (ArcGIS 9.2) ,statistical analysis software (SPSS 11.5),overlay analysis distance analysis, buffer analysis, statistical analysis, fans analysis, literature analysis, landscape Measure analysis, fractal theory and methods of research methods. By these ways ,we can have a more completed and lasted study to Huaihua city morphology 's evolution .The study shows: Huaihua city's expansional direction mainly to the east and south ,city morphology compact, fractal dimension low, shape index excessive, the integrity of the main function block poor, concentration dimension low and increase slow, the heterogeneity index changed little; its evolution path is the "base" -"scatter groups" -"Mission City" -"branched radiation" - "T' fonts"; the main factors belong to the natural and geographical conditions as topography, water, the building idea of "Hill, Powder , Hole" ,the regional GDP growth, the conditional improvement of the regional basis transport facilities, the urban planning and other factors ;the main problems embody in urban morphology loose, ecological space less, urban cultural and national characteristics shortcoming and so on. In view of this, the paper aims at a sustainable urban morphology ,advancing the extension toward north and South, guiding the compaction of urban morphology, displaying the mountains and water , promoting urban eco-morphology, speeding up the construction of two roads, enhancing livable urban form, reflecting ethnic and cultural characteristics, improving the city's cultural patterns and so on.