Future inequality of human exposure to greenspace resource and spatial utilization strategy in China

Resources Conservation and Recycling, Год журнала: 2025, Номер 218, С. 108231 - 108231

Опубликована: Март 5, 2025

Язык: Английский

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Ecological land evolution index: An improved approach to characterize the process of ecological land evolution

Research Square (Research Square), Год журнала: 2025, Номер unknown

Опубликована: Янв. 9, 2025

Background Ecological land evolution is essential in shaping regional landscape patterns, influencing ecosystem processes, and altering functions. However, existing indices inadequately quantify both ecological degradation restoration particularly regarding patch-scale dynamics related to connectivity fragmentation. This study aimed propose the Land Evolution Index (ELEI), a novel metric designed comprehensively assess spatiotemporal intricacies of at patch level. By integrating spatial proximity connectivity, ELEI offers more refined holistic evaluation compared traditional indices, thereby enhancing our comprehension these dynamic processes. Results Utilizing four temporal snapshots (1990, 2000, 2010, 2020) use raster data from urban agglomeration middle reaches Yangtze River (UAMRYR) China, we applied patterns restoration(ELR) degradation(ELD). The results demonstrate significant heterogeneity evolution. Cities such as YCH, HY, JJ showed large-scale restoration, primarily driven by expansion connecting infilling patches. In contrast, highly urbanized areas like WH CS exhibited severe fragmentation, form fragmented enclosed also revealed shifts ELR ELD distributions, with fragmentation intensifying 2000 followed signs reversal subsequent decade due initiatives. Compared other provides in-depth comprehensive understanding rapidly urbanizing areas, identifying regions where efforts have succeeded continues. Conclusions studying demonstrated ELEI’s effectiveness key degradation, offering crucial insights for policymakers striving balance economic development conservation. Additionally, variants (Mean (MELEI) Area-Weighted Mean (AWMELEI)) highlights their value tracking over time, providing valuable tool conservation planning management.

Язык: Английский

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Current and future thermal effects and spatial optimization modelling of urban greenspace in megacity

Sustainable Cities and Society, Год журнала: 2025, Номер unknown, С. 106199 - 106199

Опубликована: Фев. 1, 2025

Язык: Английский

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The Polycentricity of Urban Population Will Lead to Improvements in Urban Heat Island Effect: Evidence from the Yangtze River Delta in China

Sustainable Futures, Год журнала: 2025, Номер unknown, С. 100510 - 100510

Опубликована: Фев. 1, 2025

Язык: Английский

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Optimizing Urban Greenspace Landscapes to Mitigate Population Exposure to Extreme Heat in 21st Century Chinese Cities

Environmental Science & Technology, Год журнала: 2025, Номер unknown

Опубликована: Март 11, 2025

Urban greenspace (UGS) is a crucial nature-based solution for mitigating increasing human exposure to extreme heat, but its long-term potential has been poorly quantified. We used high spatial-temporal resolution data sets of urban land cover and population grid in combination with an climate model, machine learning, use simulation model assess the impact UGS on (high-heat exposure, HHE) spatial optimization strategies. Results showed that HHE have strong spatiotemporal dynamic coupling 21st century Chinese cities. Moreover, shrinkage increased by 0.58–1.15 °C, while expansion mitigated it 0.72–1.26 both stronger SSP3–7.0 SSP5–8.5 scenarios. Different from common impressions, relationships, rather than quantities UGS, are more influential (1.3–1.8 times) HHE. Our solutions suggest simply enhancing connectivity between patches can mitigate 9.1–21.1%, especially eastern central results provide example how improve adaptation ecological space designs strongly promote research optimal patterns future robust heat mitigation.

Язык: Английский

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Ecological land evolution index: an improved approach to characterize the process of ecological land evolution

Ecological Processes, Год журнала: 2025, Номер 14(1)

Опубликована: Апрель 27, 2025

Abstract Background Ecological land evolution is pivotal in shaping regional landscapes and ecosystem functions. However, existing metrics are limited quantifying patch-scale dynamics of connectivity fragmentation during the processes ecological degradation restoration. This study introduces Land Evolution Index (ELEI), a novel framework integrating spatial proximity to evaluate spatiotemporal complexities changes at patch level. By incorporating adjacency rules continuous value systems, ELEI offers granular analysis connectivity-fragmentation tradeoffs, addressing limitations traditional landscape metrics. Results Using four temporal use datasets (1990–2020) from urban agglomeration middle reaches Yangtze River (UAMRYR) China, we applied characterize restoration (ELR) (ELD). Sensitivity confirmed ELEI’s robustness, identifying connected area as primary drivers. Monte Carlo simulations validated formula stability, highlighting symmetrical responses but residual uncertainties extreme scenarios (|ELEI|> 60). Additionally, results demonstrate significant heterogeneity evolution. Degradation initially intensified 2000 2010, then decelerated 2010 2020, while process first weakened subsequently strengthened. Notably, degraded steadily expanded throughout period, reaching 17,684.20 km 2 between 1990 restored totaled 12,025.56 . Fragmentation dominated processes, connection patterns drove Urban centers like Wuhan Changsha experienced severe aligned with rapid urbanization, whereas cities such Yichang, Hengyang, Jiujiang achieved via infilling connection. Conclusions provides nuanced understanding rapidly urbanizing regions by successes ongoing hotspots. integration variants (arithmetic mean (MELEI) area-weighted (AWMELEI)) highlights their tracking long-term trends processes. actionable insights for balancing development conservation, underscoring its planning sustainable management.

Язык: Английский

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Quantifying the impact of urban blue-green spaces on humid-heat exposure risk: A case study of Nanjing’s central urban area

Ecological Indicators, Год журнала: 2025, Номер 176, С. 113708 - 113708

Опубликована: Июнь 5, 2025

Язык: Английский

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