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A platform for research: civil engineering, architecture and urbanism
How urban ecological land affects resident heat exposure: Evidence from the mega-urban agglomeration in China
Graphical abstract Display Omitted
Highlights An index of resident heat exposure considering population distribution and ecological land accessibility is modeled. Urban ecological land diversity dominates the patterns of resident heat exposure. Spatial marginal mitigation effect of urban ecological land dominance increased by 234.97% in 2000–2020. Urban ecological transition can enhance the impact of landscape structure on resident heat exposure. The interaction between urban ecological land and natural-human factors gradually enhanced the drive for resident heat exposure.
Abstract Resident heat exposure (RHE) is becoming more severe in the coming decades owing to rapid urbanization and climate change. Urban ecological land (UEL) provides important ecosystem services, such as mitigating the urban heat islands effect. However, the impacts of UEL on RHE remain poorly understood. This study quantifies the effects of UEL and its interaction with the natural-anthropogenic environment on RHE in the Guangdong-Hong Kong-Macao Greater Bay Area, a mega-urban agglomeration in China. The results showed a tight spatial–temporal coupling between the UEL and RHE: UEL transitioned from degradation-fragmentation in 2000–2010 to recovery-agglomeration in 2010–2020, while the RHE distribution evolved from intensification-expansion-inequity to mitigation-contraction-equity. The average explanatory power (q value) of UEL and its structure on RHE also increased by 75.99% and 70.79%, respectively. UEL patch diversity gradually dominated the RHE distribution, and the spatial marginal effect of UEL dominance increased by 234.97%. Moreover, RHE shifted from being dominated by UEL and anthropogenic heat emissions interactions to being jointly driven by UEL and natural-anthropogenic factors (especially the interaction of patch fragmentation with topography and built-up land expansion). The results of this study provide valuable information for nature-based (i.e., UEL) landscape planning and management to develop “human-centric” RHE mitigation strategies.
How urban ecological land affects resident heat exposure: Evidence from the mega-urban agglomeration in China
Graphical abstract Display Omitted
Highlights An index of resident heat exposure considering population distribution and ecological land accessibility is modeled. Urban ecological land diversity dominates the patterns of resident heat exposure. Spatial marginal mitigation effect of urban ecological land dominance increased by 234.97% in 2000–2020. Urban ecological transition can enhance the impact of landscape structure on resident heat exposure. The interaction between urban ecological land and natural-human factors gradually enhanced the drive for resident heat exposure.
Abstract Resident heat exposure (RHE) is becoming more severe in the coming decades owing to rapid urbanization and climate change. Urban ecological land (UEL) provides important ecosystem services, such as mitigating the urban heat islands effect. However, the impacts of UEL on RHE remain poorly understood. This study quantifies the effects of UEL and its interaction with the natural-anthropogenic environment on RHE in the Guangdong-Hong Kong-Macao Greater Bay Area, a mega-urban agglomeration in China. The results showed a tight spatial–temporal coupling between the UEL and RHE: UEL transitioned from degradation-fragmentation in 2000–2010 to recovery-agglomeration in 2010–2020, while the RHE distribution evolved from intensification-expansion-inequity to mitigation-contraction-equity. The average explanatory power (q value) of UEL and its structure on RHE also increased by 75.99% and 70.79%, respectively. UEL patch diversity gradually dominated the RHE distribution, and the spatial marginal effect of UEL dominance increased by 234.97%. Moreover, RHE shifted from being dominated by UEL and anthropogenic heat emissions interactions to being jointly driven by UEL and natural-anthropogenic factors (especially the interaction of patch fragmentation with topography and built-up land expansion). The results of this study provide valuable information for nature-based (i.e., UEL) landscape planning and management to develop “human-centric” RHE mitigation strategies.
How urban ecological land affects resident heat exposure: Evidence from the mega-urban agglomeration in China
Feng, Rundong (author) / Wang, Fuyuan (author) / Liu, Shenghe (author) / Qi, Wei (author) / Zhao, Yicai (author) / Wang, Yifan (author)
2022-11-18
Article (Journal)
Electronic Resource
English
Ecological Sensitivity of Urban Agglomeration in the Guanzhong Plain, China
| DOAJ | 2023