[2] Nieuwenhuijsen M J. Urban and transport planning, environmentalexposures and health-new concepts, methodsand tools to improve health in cities[J]. Environmental Health, 15, 161-171(2014).

[5] Sugiyama T, Carver A, Koohsari M J et al. Advantages of public green spaces in enhancing population health[J]. Landscape and Urban Planning, 178, 12-17(2018).

[7] Boers S, Hagoort K, Scheepers L et al. Does residential green and blue space promoterecovery in psychotic disorders? A cross-sectionalstudy in the province of Utrecht, The Netherlands[J]. International Journal of Environmental Research and Public Health, 15, 1-8(2018).

[8] Schwartz R M, Christina N, et al. Longitudinalimpact of hurricane sandy exposure onmental health symptoms[J]. International Journal of Environmental Research and Public Health, 14, 1-12(2017).

[9] Dzhambov A M, Markevych I, Hartig T et al. Multiple pathways link urban green- and bluespace to mental health inyoung adults[J]. Environmental Research, 166, 223-233(2018).

[10] Wang W, Lin Z Y, Zhang L W et al. Building visual green index: A measure of visual green spaces for urbanbuilding[J]. Urban Forestry & Urban Greening, 40, 335-343(2019).

[11] Huang J, Deng F, Wu S W et al. Comparisons of personal exposure to PM_2.5 and CO by different commuting modes in Beijing, China[J]. Science of the Total Environment, 425, 52-59(2012).

[13] Semenza J C, M. P. H, Bubin C H et al. Heat-related deaths during the July 1995 heat wave in Chicago[J]. The New England Journal of Medicine, 335, 84-90(1996).

[14] Hajat S, Kovats R S, Lachowycz K. Heat-related and cold-related deaths in England and Wales: Who is at risk?[J]. Occupational and Environmental Medicine, 64, 93-100(2007).

[16] Bowler D E, Buyung-Ali L M, Knight T M et al. A systematic review of evidence for the added benefits to health of exposure to natural environments[J]. BMC Public Health, 456, 1-10(2010).

[17] Coon J T, Boddy K, Stein K et al. Does participating in physical activity in outdoor natural environments have a greater effect on physical and mental wellbeing than physical activity indoors? A systematic review[J]. Community Health, 65, A1-A40(2011).

[18] Capaldi C A, Dopko R L, Zelenski J M. The relationship between nature connectedness andhappiness: A meta-analysis[J]. Frontiers in Psychology, 5, 1-15(2014).

[19] Bodin M, Hartig T. Does the outdoor environment matter for psychologicalrestoration gained through running?[J]. Psychology of Sport and Exercise, 4, 141-153(2003).

[20] Kerr J H, Fujiyama H, Sugano A et al. Psychological responses to exercising in laboratoryand natural environments[J]. Psychology of Sport and Exercise, 7, 345-359(2006).

[21] Johnson B S, Malecki K M et al. Exposure to neighborhood green space and sleep: Evidence from the survey of the health of Wisconsin[J]. Sleep Health, 4, 413-419(2018).

[22] Gidlow C, Smith G, Kempen E V et al. Development of the Natural Environment Scoring Tool (NEST)[J]. Urban Forestry & Urban Greening, 29, 322-333(2017).

[34] Kwan M. From place-based to people-based exposure measures[J]. Social Science & Medicine, 69, 1311-1313(2009).

[35] Grahn P, Stigsdotter U A. Grahn P et al. Landscape planning and stress[J]. Urban Forestry & Urban Greening, 2, 1-18(2003).

[36] Nielsen T S, Hansen K B. Do green areas affect health? Results from a Danish survey onthe use of green areas and health indicators[J]. Health & Place, 13, 839-850(2006).

[37] Berg M V D, Poppel M V P, Smith G et al. Does time spent on visits to green space mediate the associations betweenthe level of residential greenness and mental health?[J]. Urban Forestry & Urban Greening, 25, 94-102(2017).

[38] Zhang L, Zhou S H, Kwan M et al. Impacts of individual daily greenspace exposure on health based on individual activity space and structural equation modeling[J]. International Journal of Environmental Research and Public Health, 15, 1-18(2018).

[39] Gascon M, Triguero-Mas M, Martínez D et al. mental health benefits of long-term exposure to residential green and blue spaces: A systematic review[J]. International Journal of Environmental Research and Public Health, 12, 4354-4379(2015).

[40] Paluska S A, Schwenk T L. Physical activity and mental health[J]. Sports Medicine, 29, 167-180(2000).

[41] Evans W P, Owens P, Marsh S C et al. Environmental factors, locus of control, and adolescent suicide risk[J]. Child and Adolescent Social Work Journal, 22, 301-319(2005).

[42] Rappe E, Kivelä S, Rita H. Visiting outdoor green environments positively impacts self-rated health among older people in long-term care[J]. Hort Technology, 16, 55-59(2006).

[43] Akpinar A, Barbosa-Leiker C, Brooks K A. Does green space matter? Exploring relationships between greenspacetype and health indicators[J]. Urban Forestry & Urban Greening, 20, 407-418(2016).

[44] Helbich M, Klein N, Roberts H et al. More green space is related to less antidepressant prescription rates in the Netherlands: A Bayesian geoadditive quantile regression approach[J]. Environmental Research, 166, 290-297(2018).

[45] Liu Q Y, Zhang Y J, Lin Y W et al. The relationship between self-rated naturalness of university green space and students' restoration and health[J]. Urban Forestry & Urban Greening, 34, 259-268(2018).

[46] Thompson C W, Roe J, Aspinall P et al. More green space is linked to less stress in deprived communities:Evidence from salivary cortisol patterns[J]. Landscape and Urban Planning, 105, 221-229(2012).

[47] Yuan L, Shin K, Managi S. Subjective well-being and environmental quality: The impact of air pollution and green coverage in China[J]. Ecological Economics, 153, 124-138(2018).

[48] Pietilä M, Neuvonen M, Borodulin K et al. Relationships between exposure to urban green spaces, physicalactivity and self-rated health[J]. Journal of Outdoor Recreation and Tourism, 10, 44-54(2015).

[49] Lachowycz K, Jones A P. Towards a better understanding of the relationship between greenspaceand health: Development of a theoretical framework[J]. Landscape and Urban Planning, 118, 62-69(2013).

[50] Reid C E, Kubzansky L D, Li J et al. It's not easy assessing greenness: A comparison of NDVI datasets and neighborhood types and their associations with self-rated health in New York City[J]. Health & Place, 54, 92-101(2018).

[51] Dadvand P, Bartoll X, Basagaña X et al. Green spaces and general health: Roles of mental health status, socialsupport, and physical activity[J]. Environment International, 91, 161-167(2016).

[52] Lee S, Ellis C D, Kweon B et al. Relationship between landscape structure and neighborhoodsatisfaction in urbanized areas[J]. Landscape and Urban Planning, 85, 60-70(2008).

[53] Lu Y. Using google street view to investigate the association between streetgreenery and physical activity[J]. Landscape and Urban Planning, 8, 2-9(2018).

[54] Rzotkiewicz A, Pearson A L, Dougherty B V et al. Systematic review of the use of google street view in health research: Major themes, strengths, weaknesses and possibilities for future research[J]. Health & Place, 52, 240-246(2018).

[56] Li X J, Ratti C, Seiferling I. Mapping urban landscapes along streets using google street view[C]. USA: Springer, Cham, 341-356(2017).

[57] Helbich M, Yao Y, Liu Y et al. Using deep learning to examine street view green and blue spaces and their associations with geriatric depression in Beijing, China[J]. Environment International, 126, 107-117(2019).

[63] Arango C M, Paez D C, Reis R S et al. Association between the perceived environment and physical activity among adults in Latin America: A systematic review[J]. International Journal of Behavioral Nutrition and Physical Activity, 10, 122(2013).