Abstract：
:Previous studies on the effects of greenspace exposure on health are largely based on static contextual units, such as residential neighborhoods, and other administrative units. They tend to ignore the spatiotemporal dynamics of individual daily greenspace exposure and the mediating effects of specific activity type (such as physical activity). Therefore, this study examines individual daily greenspace exposure while taking into account people's daily mobility and the mediating role of physical activity between greenspace exposure and health. Specifically, using survey data collected in Guangzhou, China, and high-resolution remote sensing images, individual activity space for a weekday is delineated and used to measure participants' daily greenspace exposure. Structural equation modeling is then applied to analyze the direct effects of individual daily greenspace exposure on health and its indirect effects through the mediating variable of physical activity. The results show that daily greenspace exposure directly influences individual health and also indirectly affects participants' health status through physical activity. With respect to the total effects, daily greenspace exposure helps improve participants' mental health and contributes to promoting their social health. It also helps improve participants' physical health, although to a lesser extent. In general, the higher the daily greenspace exposure, the higher the physical activity level and the better the overall health (including physical, mental, and social health).
journal_name
Int J Environ Res Public Healthauthors
Zhang L,Zhou S,Kwan MP,Chen F,Lin Rdoi
10.3390/ijerph15102323subject
Has Abstractpub_date
2018-10-22 00:00:00issue
10eissn
1661-7827issn
1660-4601pii
ijerph15102323journal_volume
15pub_type
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