摘要:AbstractEvidences suggested social network in newly developed communities in China has become weaker than old ones. One feasible solution of this problem is promoting outdoor activities through environment modification. The relationships between environmental factors and outdoor activities are the major concerns of this research. This paper developed a basic social-ecological model to explain the mechanism of outdoor activity. An intensive survey was carried out to examine how environmental factors affect outdoor activities. Finally 7668 users’ activity data were obtained by observation. The result suggested that certain physical environment factors are linked to outdoor activities in China.