Characteristics of urban expansion in megacities and its impact on water-related ecosystem services: A comparative study of Chengdu and Wuhan, China

Ecological Indicators, Journal Year: 2023, Volume and Issue: 158, P. 111322 - 111322

Published: Nov. 28, 2023

The megacity expansion that continues to occur in developing countries is an unavoidable trend at this stage, yet there exists a dearth of knowledge regarding the comprehensive impacts urban on water-related ecosystem services (WESs) within these areas. Taking Chengdu and Wuhan, two megacities upper middle Yangtze River Economic Belt China as study area, first compare magnitude, rate, spatial divergence, mode expansion; then evaluate its impact three typical types WESs, i.e., water yield (WY), purification (WP), habitat quality (HQ) using econometric models bivariate Moran's I. research findings show Chengdu's suburbs tend experience edge-based along rivers, while Wuhan's city center also spreads outward from river junctions Han rivers. Urban negatively all effect greater than Wuhan. WY Wuhan severely impacted by expansion, WP well. HQ suffers largest negative impact. reveals spillover with extensive externalities WESs centers both cities positive southwestern Chengdu. Based results, we suggest should focus protecting limiting cross-regional suburbs. Attention be paid water-ecological protection suburb City managers consider ecological zoning geared toward conservation address adverse expansion.

Language: Английский

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Long-term assessment of ecological risk dynamics in Wuhan, China: Multi-perspective spatiotemporal variation analysis

Environmental Impact Assessment Review, Journal Year: 2023, Volume and Issue: 105, P. 107372 - 107372

Published: Dec. 9, 2023

Language: Английский

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Seasonal changes in ecosystem health and their spatial relationship with landscape structure in china's Loess plateau

Ecological Indicators, Journal Year: 2024, Volume and Issue: 163, P. 112127 - 112127

Published: May 11, 2024

Environmental managers have sought to optimize landscape structure maintain regional ecosystem health (EH). However, we still lack a full understanding of the effects changing on EH, especially in terms shorter time scales (e.g., monthly or seasonal scales) and spatial heterogeneity. To address this gap, study used vigor-organization-resilience-services (VORS) model assess annual variation EH Loess Plateau (LP) during 2000–2015, then applied geographically weighted regression (GWR) investigate different aspects (i.e., composition configuration) change over time. Our results showed that level LP from 2000 2015 displayed temporal non-stationarity at scales, pattern decreasing southeast northwest. The had obvious heterogeneity, depending local configuration. In general, configuration exerted greater impact than apart Shannon's diversity index percentage forestland area, but intensity direction higher temporally instability therefore should receive more attention. Furthermore, regulation dominant patch size, connectivity forest spacing is optimal choice for management. suggest responses changes vary by place, integrating characteristics can help decision-makers make precise arrangements adjustments keep negative ecological impacts within reasonable limits.

Language: Английский

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Ecosystem health in the Yangtze and Yellow River basins in China: Regional differences and driving forces

Ecological Indicators, Journal Year: 2024, Volume and Issue: 166, P. 112422 - 112422

Published: Aug. 1, 2024

Language: Английский

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Effects of a changing climate and anthropogenic impacts on net primary production in Yinshanbeilu, Inner Mongolia, China

Environmental Impact Assessment Review, Journal Year: 2023, Volume and Issue: 102, P. 107185 - 107185

Published: June 26, 2023

Language: Английский

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