关键词: 城镇化, 城乡规划, 生态单元制图, 生态格局

Abstract: Quantitative indicators including the green rate, percentage of greenery coverage, per capita green areas, per capita park green space area and so on was used as the basis of urban green space system planning in China. The planning relied on the experience and subjective judgment, can't be accurately reflecting the intrinsic attribute of urban green space, and providing reasonable and reliable basis of the ecological urban expansion line and ecological security pattern. Biotope mapping was a kind of ecological technical means which originated in Europe, but in our country, how to link up with Chinese urban and rural planning standards, provide basic research work for urban and rural planning and nature conservation are the main problems that we look forward to solve in our study. Biotope mapping to interface with the Chinese urban and rural planning phase, to provide professional, reliable basic research achievements, this paper is to solve the main problem. This paper presents the city all the land use types as ecological unit classification method of "localization" and "urbanization", and it was established the biotope classification system (9 categories of 37 small class) which has confirmed with Chinese urban and rural standard, with the method of mapping science, our study has comprehensively identified the value of different green space in city and town, and has taken the methods to ensure important township natural systems for which has the ecological value of the green space protection and restoration in urban development process not be affected by fragmentation, at the same time, our study has provided scientific basis to specify the new developing field on the basis of the evaluation results. In determining the biotope classification system on the basis of the study area, our study has disaggregated and evaluated the comprehensive map, landscape pattern indexes and each single index of the biotope, and still has established the whole town domain comprehensive evaluation system of ecological value, meanwhile our study has mapped and evaluated for the comprehensive value of biotope, finally to divide the ecological function district of the whole town domain, and to propose its protection and planning scheme of the ecological landscape planning pattern. It is to achieve protection and adjustment of land within the green area and vegetation richness, tree coverage and other important ecological indicators to ensure the effect of natural system, without fragmentation in the city in the development process;and how to realize our country city green "smart growth" as the follow-up research direction.

Key words: urbanization, urban and rural planning, biotope mapping, ecological pattern