Long-term effects of post-earthquake landslides on vegetation ecosystem net carbon

Landslides significantly impact carbon dynamics across global regions, yet the long-term vegetation ecosystem net carbon effect from post-earthquake landslides remains unclear. To address this gap, this study focuses on the 2008 Wenchuan earthquake in Sichuan, China. Using landslide inventories and...

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Main Authors: Wen He, Baofeng Di, Shaolin Wu, Jierui Li, Wen Zeng, Yajie Zeng, Ruowei Li, Joseph Kimuli Balikuddembe, Hongkai Chen, Bin Zhang, Gang Chen, Constantine A. Stamatopoulos, Ufuk Yazgan, Isaya Kisekka
Format: Article
Language:English
Published: Elsevier 2025-02-01
Series:Ecological Indicators
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Online Access:http://www.sciencedirect.com/science/article/pii/S1470160X25000998
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author Wen He
Baofeng Di
Shaolin Wu
Jierui Li
Wen Zeng
Yajie Zeng
Ruowei Li
Joseph Kimuli Balikuddembe
Hongkai Chen
Bin Zhang
Gang Chen
Constantine A. Stamatopoulos
Ufuk Yazgan
Isaya Kisekka
author_facet Wen He
Baofeng Di
Shaolin Wu
Jierui Li
Wen Zeng
Yajie Zeng
Ruowei Li
Joseph Kimuli Balikuddembe
Hongkai Chen
Bin Zhang
Gang Chen
Constantine A. Stamatopoulos
Ufuk Yazgan
Isaya Kisekka
author_sort Wen He
collection DOAJ
description Landslides significantly impact carbon dynamics across global regions, yet the long-term vegetation ecosystem net carbon effect from post-earthquake landslides remains unclear. To address this gap, this study focuses on the 2008 Wenchuan earthquake in Sichuan, China. Using landslide inventories and satellite data, we applied the Seasonal Autoregressive Integrated Moving Average Model (SARIMA) model and Bayesian change-point detection to examine long-term effects of post-earthquake landslides on vegetation ecosystem net carbon uptake (ENCU). For the restored areas, the multi-year total vegetation ecosystem net carbon loss (ENCL) was calculated for different landslide-prone areas. Subsequently, the Random Forest Regression Model and Structural Equation Model were used to explore the environmental drivers of ENCL. A substantial decline in ENCU was observed in the post-earthquake, with a 17.40 % reduction noted in May 2008. By 2019, only 45 out of 86 affected areas recovered to pre-earthquake ENCU levels, with 18 areas surpassing their initial levels. Recovery times for most landslides ranged from 8 to 11 years. From 2008 to 2019, the total ENCL across various landslide-affected areas primarily ranged from 5000 to 20,000 gC m−2. Precipitation emerged as a key driver of ENCL, while landscape fragmentation hindered recovery. These findings underscore the need for sustainable post-earthquake land management to maintain carbon balance, offering new insights into how seismic events influence global carbon cycles.
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spelling doaj-art-74e77a56db3246d3bae962e7569ed8ba2025-02-02T05:26:57ZengElsevierEcological Indicators1470-160X2025-02-01171113170Long-term effects of post-earthquake landslides on vegetation ecosystem net carbonWen He0Baofeng Di1Shaolin Wu2Jierui Li3Wen Zeng4Yajie Zeng5Ruowei Li6Joseph Kimuli Balikuddembe7Hongkai Chen8Bin Zhang9Gang Chen10Constantine A. Stamatopoulos11Ufuk Yazgan12Isaya Kisekka13Institute for Disaster Management and Reconstruction, Sichuan University-The Hong Kong Polytechnic University, Chengdu 610207, ChinaInstitute for Disaster Management and Reconstruction, Sichuan University-The Hong Kong Polytechnic University, Chengdu 610207, China; State Key Laboratory of Hydraulics and Mountain River Engineering, College of Water Resource and Hydropower, Sichuan University, Chengdu 610065, China; Center for Archaeological Science, Sichuan University, Chengdu 610065, Sichuan, China; Corresponding author at: Institute for Disaster Management and Reconstruction, Sichuan University-The Hong Kong Polytechnic University, Chengdu 610207, China.College of Architecture and Environment, Sichuan University, Chengdu 610065, Sichuan, ChinaInstitute for Disaster Management and Reconstruction, Sichuan University-The Hong Kong Polytechnic University, Chengdu 610207, ChinaInstitute for Disaster Management and Reconstruction, Sichuan University-The Hong Kong Polytechnic University, Chengdu 610207, ChinaInstitute for Disaster Management and Reconstruction, Sichuan University-The Hong Kong Polytechnic University, Chengdu 610207, ChinaCollege of Grassland, Resources and Environment, Key Laboratory of Grassland Resources of the Ministry of Education of China, Inner Mongolia Agricultural University, Hohhot 010019, ChinaInstitute for Disaster Management and Reconstruction, Sichuan University-The Hong Kong Polytechnic University, Chengdu 610207, ChinaSichuan Provincial Engineering Laboratory of Monitoring and Control for Soil Erosion in Dry Valleys, China West Normal University, Nanchong 637009, ChinaSichuan Provincial Engineering Laboratory of Monitoring and Control for Soil Erosion in Dry Valleys, China West Normal University, Nanchong 637009, ChinaYa ’an Emergency Management Bureau, Ya’an 625000, ChinaStamatopoulos and Associates Co. & Hellenic Open University, Athens 11471, GreeceDisaster Management Institute, Istanbul Technical University, Istanbul, TurkeyDepartment of Land, Air & Water Resources, University of California Davis, Davis 95616, USALandslides significantly impact carbon dynamics across global regions, yet the long-term vegetation ecosystem net carbon effect from post-earthquake landslides remains unclear. To address this gap, this study focuses on the 2008 Wenchuan earthquake in Sichuan, China. Using landslide inventories and satellite data, we applied the Seasonal Autoregressive Integrated Moving Average Model (SARIMA) model and Bayesian change-point detection to examine long-term effects of post-earthquake landslides on vegetation ecosystem net carbon uptake (ENCU). For the restored areas, the multi-year total vegetation ecosystem net carbon loss (ENCL) was calculated for different landslide-prone areas. Subsequently, the Random Forest Regression Model and Structural Equation Model were used to explore the environmental drivers of ENCL. A substantial decline in ENCU was observed in the post-earthquake, with a 17.40 % reduction noted in May 2008. By 2019, only 45 out of 86 affected areas recovered to pre-earthquake ENCU levels, with 18 areas surpassing their initial levels. Recovery times for most landslides ranged from 8 to 11 years. From 2008 to 2019, the total ENCL across various landslide-affected areas primarily ranged from 5000 to 20,000 gC m−2. Precipitation emerged as a key driver of ENCL, while landscape fragmentation hindered recovery. These findings underscore the need for sustainable post-earthquake land management to maintain carbon balance, offering new insights into how seismic events influence global carbon cycles.http://www.sciencedirect.com/science/article/pii/S1470160X25000998Net carbon uptakeNet carbon lossRecovery patternLandscape fragmentationWenchuan earthquake
spellingShingle Wen He
Baofeng Di
Shaolin Wu
Jierui Li
Wen Zeng
Yajie Zeng
Ruowei Li
Joseph Kimuli Balikuddembe
Hongkai Chen
Bin Zhang
Gang Chen
Constantine A. Stamatopoulos
Ufuk Yazgan
Isaya Kisekka
Long-term effects of post-earthquake landslides on vegetation ecosystem net carbon
Ecological Indicators
Net carbon uptake
Net carbon loss
Recovery pattern
Landscape fragmentation
Wenchuan earthquake
title Long-term effects of post-earthquake landslides on vegetation ecosystem net carbon
title_full Long-term effects of post-earthquake landslides on vegetation ecosystem net carbon
title_fullStr Long-term effects of post-earthquake landslides on vegetation ecosystem net carbon
title_full_unstemmed Long-term effects of post-earthquake landslides on vegetation ecosystem net carbon
title_short Long-term effects of post-earthquake landslides on vegetation ecosystem net carbon
title_sort long term effects of post earthquake landslides on vegetation ecosystem net carbon
topic Net carbon uptake
Net carbon loss
Recovery pattern
Landscape fragmentation
Wenchuan earthquake
url http://www.sciencedirect.com/science/article/pii/S1470160X25000998
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