Research On The Design Of The Present Situation Of Small Green Space In Chengdu Old Town Center

After rapid incremental development,large and medium-sized cities in China gradually turn to stock development.As a new first-tier city,Chengdu has put forward the planning and construction of a park city in recent years.In the central urban area,green enhancement and green replenishment have been implemented.A five-level green system has been established by connecting green ways,ecological zones,parks,small amusement parks and micro-green Spaces.Under this big background,the green space as a large park green space of complementary,with small size,high flexibility,high accessibility features,is the closest green leisure space to People’s Daily life,bear the residents daily leisure,recreation,entertainment and other entities,can play an irreplaceable role to build a category five greening system.Central city of Chengdu as the earliest Chengdu city construction and development of the earliest area,show the spatial features of "high density" constantly,long-term residents in the high density urban environment need more green space to promote the development of the physical and mental health,and of existing outdoor environment and residents in the area of green health demand highly don’t match.Therefore,the design of micro-green space in high-density cities should not only have a good green base,but also meet people’s growing health needs in terms of design and function,and create a green space conducive to guiding people’s health activities.Therefore,it is of great practical and social significance to explore the design key points of micro-green space in the high-density old city center and systematically update the design system of micro-green space in the old city center based on the health needs of the main users of micro-green space in the old city center of Chengdu.This paper takes the micro-green space in four communities,namely,Kuanxiangzi community,Chengke Road community,Zongfu Road community and Duyuan Street community,which have better landscape base and more visitors in the old city center of Chengdu,as the main research object.Through field investigation,interview investigation and AHP analytic hierarchy process,data were collected from the attributes,distribution characteristics,population distribution and users’ health needs of micro-green space.The environmental evaluation price model of micro-green space was built,and the weight of evaluation indexes in the evaluation layer was calculated.It was concluded that the weight of index factors such as plane layout(C1),site characteristics(C3),green plants(C4),and rest seats(C7)was relatively high,which were 0.180,0.172,0.162 and 0.098 respectively.The evaluation system was applied to the environmental evaluation of micro-green space in the central area of the old city of Chengdu,and finally the key points of micro-green space design were put forward from four aspects,including flexible space organization,landscape function expansion,horticultural therapy and public participation,so as to provide reference for the landscape improvement of micro-green space in the central area of the old city.