Research On The Composition System And Spatial Layout Of Green Space In Small Mountain Towns In Northern Guizhou

As a late-development country,our country in a short span of 30 years to complete the historical mission of developed countries in one hundred,the urbanization construction of rapid development,at the same time,a hundred years of conflicts and problems are outbreaking in short of time.It make the development currenttly is faced with severe challenges.Represented by southwest such as Yunnan Province,Guizhou Province,subject to the terrain and resource conditions,scattered layout,regional population flow,a lot of villages and towns are faced with the problem how to retain and develop.Adhere to the people-oriented and improve the quality of development are the key to the construction of modern country,building urban ecological network,building urban green space system,optimizing urban green space construction are an important measure to construct ecological civilization and realize sustainable development.In this paper,the green space of small mountain towns in northern Guizhou region is taken as the research object,patch type and landscape level to analyze the landscape pattern characteristics of green space of small mountain town.The paper summarized the main advantages and disadvantages of green space of small mountain towns in northern Guizhou.The include(1)disadvantages: the development of green space in each town is unbalanced,the amount of green space in parks is insufficient,the distribution is unbalanced and the area is different;The distribution of attached green space is generally scattered,mostly small green space patches,lack of connectivity,regular patch boundary shape,and there is no good continuity between patches;(2)Advantages: as the dominant patch type,the vast majority of protective green space exists in the periphery of built-up areas or the mountain areas with large slopes,with strong connectivity;At the same time,network analysis is used to study the accessibility of public green Spaces in two different travel modes of walking electric vehicles.The results showed:(1)within 30 minutes,more than 90% of residents can reach public green Spaces in small mountain towns on foot.(2)Within 20 minutes,more than 90% of residents can reach the public green Spaces in small mountain towns by electric vehicles.In the end,sucked the green evaluation index system of construction in mountain towns,(1)the legal regulations of quantitative indicators,relating the population of permanent residents per capita and park green space area per capita to analyze the evaluation of greening quantity.The ratio green space is 25%,per capita public green of 5.5 square meters per person,the tree and shurbs coverage rate is 26%.(2)the accessibility includes two index,which is 60% within 15 minutes of walking and 90% within 20 minutes of electric vehicle.The index evaluation system is applied to analyze the green space of small mountain towns,and the problems are found and optimization suggestions are put forward.Then the index evaluation system is applied again to analyze and verify the structure system and spatial pattern of small mountain towns after optimization,so as to provide reference for the green space construction and adjustment of small mountain towns in the future.