Study On City Park’s Space Optimization Aiming At Population Health Performance

City trend makes the human beings far from the nature,public health is facing serious challenges,Curbing population health problem of "sub healthy state prevails" has become one of the most important hot science issues of common concern of all mankind. City park space environment design research that promote population health is to follow the direction of urban planning, landscape architecture discipline development ——intervente, constraint and guide people to change the living environment and lifestyle so as to improve people’s quality of life and promote the health by the construction of human settlements environment. Although the research content is not comprehensive or perfect, for landscape architecture and urban planning, it is a new starting point and a preliminary attempt on actively participating in the whole of mankind of this important scientific problems.In the system of human settlements, city park is an important place for people to contact with nature, playing a positive role in promoting human health. City Park not only improve the city’s ecological environment, beautify the city landscape, a more important function is through the use of city green space, make people build up health, restore or alleviate mental problems and tense mood and obtain happiness, realize the whole health including physiological health,psychological health and good social ability.This study takes space environment of city park as the object, takes enhancing the physical and mental pressure to ease the population groups living needs as the starting point, uses the analytic hierarchy process(AHP) to build the park space environment quality evaluation system; uses behavior note method 、 data analysis reveal the temporal and spatial distribution and environmental activities of population in city park use. On the basis of statistical analysis, the study determines the promotion of population health park space environment optimization model, constructes city park space environmental to promote population health, realizes the active intervention on the health of the population. The results can be a reference for the similar research.This paper consists of seven chapters. The first chapter is the introduction describes the research background and origin, defines the research content、 research significance、research purpose、 research methods、domestic and foreign research present situation analysis, summarizes the characteristics of current research. The second chapter carries on the analysis of the relationship between city park and human health, the role of a bridge elaborated the city park use activity, finds the combination point between city park space environment and the population health, which laying the foundation for the following analysis capacity. The third、fouth chapters takes four representative city parks in the downtown area of Chongqing city as research cases,certifies population health promovement of city park、relationship between park space environment quality and population health through specific investigation of temporal and spatial distribution and the use of population activities,the different needs of different groups,people population health performance. Also the part determines the key content and direction of city park space planning of the health oriented, providing a solid basis for next chapter of the optimum design of space construction. The fifth chapter propounds optimization suggestions to build and promote population health through park space environment planning content. The seventh chapter summarizes the full text and research results.