Research On Temporal And Spatial Preference Of Physical Activities In Green Space In Winter In Harbin Based On Public Participation Geographic System

Currently China is facing a sub-health crisis,and strengthening physical activity is the most effective means of promoting public health.With the increasing demand for outdoor physical activity,urban green space has become the first choice for outdoor physical activity and residents' physical activity preference is directly related to green space utilization rate and service efficiency,which has important enlightenment effect on urban green space location planning and space design.This paper took the Harbin residents' physical activities in green space in winter as the research object.From the spatial scale of the city,it utilized the online survey by the PPGIS based on the WeChat applet and questionnaire survey by field visits to obtain the spatial location,subject attribute,activity mode and spatial preference information of physical activity.At the same time,to obtain the spatial characteristics data of Harbin green space by the ways of the relevant departmental government affairs disclosure and the network open data source.On the one hand,it described the spatial and temporal preferences and internal spatial characteristics preferences of Harbin residents' physical activities in green space in winter,and explored the internal spatial characteristics preferences of green space and its influencing mechanism to the physical activities in green space.Finally,based on the above results,the strategy of physical activity visit promotion in green space was proposed to improve the green space utilization rate and service efficiency.In the aspect of index quantification,the spatial characteristics of the green space in the public comment information were included in the PPGIS and field questionnaire survey for residents to score according to their preference level,and the spatial characteristics of each green space were measured by the high scores of each characteristic index;The total amount of physical activity visits calculated by the spatial location information of physical activity obtained by PPGIS and field questionnaires,which then connected to GIS vector layer of the green space,and the physical activity activity visit index calculated according to the Shannon-Weiner index were both used to describe the physical activity visit rate of the green space.Using spatial statistical analysis to quantify the external spatial characteristics index of each green space based on the open map datas from the departmental government affairs disclosure and the network open data source.In the aspect of data analysis,the spatial distribution of physical activity in green space was visually compared and analyze by using superposition analysis and grid density method based on ArcGIS;Descriptive statistics method was used to calculate the spatial and temporal preferences of physical activity and the spatial characteristics of green space based on SPSS.In contrast analysis,pearson correlation and simple linear regression analysis were used to screen the external space characteristics of green space affected by physical activity with its influence mechanism clarified,and then,to summarize the external spatial characteristics of green space physical activity preference.The research results are as follows:(1)On the basis of clarifying the characteristics of subject attributes,systematically analyze the behavioral preference of Harbin residents' physical activities in green space in winter from four levels: activity type,activity intensity,activity frequency and duration of activity;(2)Based on the analysis of the time preference of Harbin residents' physical activities in green space in winter from the overall level,to further analyze and summarize the time preference of Harbin green space physical activity from different subjects,including activities and green strata,and target different groups of people;(3)Based on the analysis of the total physical activity and spatial distribution characteristics of Harbin residents' physical activities in green space in winter,to do further research on the spatial types,scales and morphological preferences of green space in the face of physical activity from different subjects and different active layers;(4)To screen out the internal and external spatial characteristics of the green space that affects preference of physical activities,and analyzing and summarizing the internal spatial characteristics preferences of physical activity green space from the overall and different greenland levels;Starting from the central green space and suburban green space,to investigate the characteristics of the external space characteristics of the green space that affects the physical activity and its impact mechanism,and summarize the characteristics of the external spatial characteristics of the green space;(5)Based on the external spatial feature preference of green space physical activity,a spatial strategy was proposed for central urban and suburban green space location planning.Based on the spatial and temporal preferences of green space physical activity and internal spatial feature preference,a spatial strategy was proposed for different green space internal space design.