Bridging the Green Space Divide: A Big Data-Driven Analysis of Park Accessibility Inequities in Chinese Megacities Using Enhanced 3SFCA Modeling

Sustainability, Год журнала: 2025, Номер 17(5), С. 2059 - 2059

Опубликована: Фев. 27, 2025

This study enhances our understanding of urban park accessibility and social equity through a novel methodological framework in Chengdu, China. By improving the three-step floating catchment area (3SFCA) method with space syntax metrics multi-modal transportation analysis, we identify spatial disparities green access. Our methodology, validated Baidu heat map data, demonstrates improved accuracy estimating population demand patterns. Key findings include: (1) The enhanced 3SFCA outperforms traditional approaches predicting accessibility, providing reliable evidence for planning; (2) significant exist across modes, particularly affecting non-motorized transport users; (3) newly developed areas show greater access inequities than established neighborhoods; (4) important mismatches between vulnerable distributions. research provides targeted recommendations reducing all residents, benefiting children elderly populations rapidly urbanizing contexts.

Язык: Английский

Human–Nature Relationships in Country Parks at the Urban–Rural Fringe: A Case Study of the Huitian Region, Beijing

Land, Год журнала: 2025, Номер 14(5), С. 1086 - 1086

Опубликована: Май 16, 2025

Urban green spaces face increasing pressure to reconcile ecological conservation with rising public demand as urbanization accelerates. Yet the spatial coupling of human needs and natural provisioning in urban–rural fringe remains insufficiently understood. Focusing on country park cluster Beijing’s Huitian region, this study develops an integrated assessment framework—combining importance, connectivity potential, construction suitability, recreational demand—to evaluate nature suitability pinpoint mismatches human–nature interactions. Ecological importance is quantified through sensitivity analysis InVEST-based habitat-quality modeling, while potential estimated via normalized least-cost corridor analysis. Construction derived from proportion artificial surfaces road network density, measured by population concentration, facility transport accessibility. These metrics are synthesized map nature-suitability patterns reveal divergences between provisioning. The results show a pronounced north–south gradient Dongxiaokou Ditch Forest Park emerging hotspots. Nineteen source patches identified, strongest southern sector Park. Areas high coincide well-developed infrastructure, whereas clusters around Tiantongyuan Beiqing Road. Natural elements intertwine form core 870.74 hm2, yet 13.29% area exhibits mismatches—particularly residential zones lacking green-space access. Over-development within Recreation likewise falls short expectations. offers targeted recommendations—ecological protection, optimization, enhancement, integration multifunctional infrastructure—and provides transferable framework for coordinating systems other contexts.

Язык: Английский