Interactions and Driving Force of Land Cover and Ecosystem Service Before and After the Earthquake in Wenchuan County DOI Open Access
Jintai Pang, Li He, Zhengwei He

и другие.

Sustainability, Год журнала: 2025, Номер 17(7), С. 3094 - 3094

Опубликована: Март 31, 2025

The Wenchuan earthquake, an unexpected magnitude 8.0 mega-earthquake that struck on 12 May 2008, significantly changed land cover (LC), particularly affecting vegetation and rock cover. However, the long-term effects of LC changes ecosystem services (ESs) remain unclear in earthquake-affected regions, especially across different spatial scales. This study, focusing County, employs a multi-model framework integrates fractional coverage (FVC), exposure rate (FR), (ESs), combining correlation analysis, geographically weighted regression (GWR), Self-organizing map (SOM) clustering, XGBoost-SHAP model, to analyze spatiotemporal dynamics, interrelationships, driving mechanisms (LC) ESs before after earthquake. Results show that: (1) From 2000 2020, FVC FR fluctuated markedly under earthquake influence, with slight declines habitat quality (HQ) carbon storage (CS) notable improvements soil conservation (SC) water yield (WY). (2) With increasing elevation, FVC–CS–SC group exhibited downward trend synergy, while FR–HQ–WY increased also showed synergy; trade-offs synergies became more pronounced at larger scales, displaying strong heterogeneity. (3) Elevation (explaining 10–60% variance) was main driver for ESs, use, slope, human activities, climate, geological conditions impacting individual indicators. At same time, existing hazard points are mainly concentrated along both sides river valleys, which may be associated intensified human–land conflicts. These findings offer valuable insights into ecological restoration sustainable development regions.

Язык: Английский

Interactions and Driving Force of Land Cover and Ecosystem Service Before and After the Earthquake in Wenchuan County DOI Open Access
Jintai Pang, Li He, Zhengwei He

и другие.

Sustainability, Год журнала: 2025, Номер 17(7), С. 3094 - 3094

Опубликована: Март 31, 2025

The Wenchuan earthquake, an unexpected magnitude 8.0 mega-earthquake that struck on 12 May 2008, significantly changed land cover (LC), particularly affecting vegetation and rock cover. However, the long-term effects of LC changes ecosystem services (ESs) remain unclear in earthquake-affected regions, especially across different spatial scales. This study, focusing County, employs a multi-model framework integrates fractional coverage (FVC), exposure rate (FR), (ESs), combining correlation analysis, geographically weighted regression (GWR), Self-organizing map (SOM) clustering, XGBoost-SHAP model, to analyze spatiotemporal dynamics, interrelationships, driving mechanisms (LC) ESs before after earthquake. Results show that: (1) From 2000 2020, FVC FR fluctuated markedly under earthquake influence, with slight declines habitat quality (HQ) carbon storage (CS) notable improvements soil conservation (SC) water yield (WY). (2) With increasing elevation, FVC–CS–SC group exhibited downward trend synergy, while FR–HQ–WY increased also showed synergy; trade-offs synergies became more pronounced at larger scales, displaying strong heterogeneity. (3) Elevation (explaining 10–60% variance) was main driver for ESs, use, slope, human activities, climate, geological conditions impacting individual indicators. At same time, existing hazard points are mainly concentrated along both sides river valleys, which may be associated intensified human–land conflicts. These findings offer valuable insights into ecological restoration sustainable development regions.

Язык: Английский

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