标题: Multiscale synergistic effects of urban green space morphology on heat-pollution: A case study of Guangdong-Hong Kong-Macao Greater Bay Area, China

作者: Zhang, JY (Zhang, Junye); Hong, S (Hong, Song); Chen, B (Chen, Bin); Wu, SB (Wu, Shengbiao)

来源出版物: ECOLOGICAL INDICATORS  卷: 173  文献号: 113390  DOI: 10.1016/j.ecolind.2025.113390  Published Date: 2025 APR  

摘要: Urban heat island and air pollution issues caused by ozone (O3) and particulate matter (PM2.5) pose serious threats to the public health. The synergistic impact of urban green space (UGS) on both seasonal heat and air pollution (heat-pollution) from a multiscale perspective remains a scientific challenge. Land surface temperature (LST), O3 and PM2.5 were used as research variables. Morphological Spatial Pattern Analysis (MSPA) was applied to quantify urban green space morphology (UGSM), and the PLUS model was employed to explore the future spatial patterns of UGS under three scenarios. A multiscale perspective combined with multiscale Geographically Weighted Regression (MGWR) and SHapley Additive exPlanations (SHAP) was used to reveal the complex impacts of UGSM on heat-pollution. The results showed that from 2000 to 2020, the area and aggregation degree in the study area decreased. High values of LST, O3 and PM2.5 concentrations were primarily distributed in main urban expansion zones. The impact of UGSM on LST, O3 and PM2.5 exhibited spatial heterogeneity and scale effect, and the degree of impact increased with scale. Moreover, the overall contribution of UGSM indicators to LST, O3 and PM2.5 varied at different scales. On the whole, UGSM effectively mitigate LST. Seasonal analysis reveals that UGSs most significantly regulate LST in summer. UGSM indicators also exhibit seasonal variability in their effects on O3 and PM2.5. UGSM optimization strategies targeting to heat-pollution were proposed. This study provides recommendations for improving UGS planning and mitigating the heat-pollution problem in the Greater Bay Area.

作者关键词: Urban green space morphology; Land surface temperature; Air pollution; Multiscale; Spatial heterogeneity

地址: [Zhang, Junye; Hong, Song] Wuhan Univ, Sch Resource & Environm Sci, Wuhan 430079, Peoples R China.

[Zhang, Junye; Hong, Song] Wuhan Univ, Key Lab Geog Informat Syst, Minist Educ, Wuhan 430079, Peoples R China.

[Chen, Bin; Wu, Shengbiao] Univ Hong Kong, Fac Architecture, Future Urban & Sustainable Environm FUSE Lab, Div Landscape Architecture,Dept Architecture, Hong Kong, Peoples R China.

通讯作者地址: Hong, S (通讯作者)，Wuhan Univ, Sch Resource & Environm Sci, Wuhan 430079, Peoples R China.

Hong, S (通讯作者)，Wuhan Univ, Key Lab Geog Informat Syst, Minist Educ, Wuhan 430079, Peoples R China.

电子邮件地址: songhongpku@126.com

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