气候变化领域集成服务门户(CCPortal): Decadal vegetation succession from MODIS reveals the spatio-temporal evolution of post-seismic landsliding after the 2008 Wenchuan earthquake

CCPortal

DOI	10.1016/j.rse.2019.111476
	Decadal vegetation succession from MODIS reveals the spatio-temporal evolution of post-seismic landsliding after the 2008 Wenchuan earthquake
	Yunus A.P.; Fan X.; Tang X.; Jie D.; Xu Q.; Huang R.
发表日期	2020
ISSN	00344257
卷号	236
英文摘要	Strong earthquakes, especially in continental mountainous areas, can trigger extensive mass wasting, producing large amounts of debris that accumulates along the hillslopes or in drainage channels. The coseismic deposits and disturbed slopes are prone to be reactivated or remobilized by heavy rainfalls in the subsequent years after the earthquake. Predicting how long post-seismic landslide activity will return to the pre-earthquake level is a key to risk assessment and management. However, this is still poorly understood, and lacks quantitative prediction approach. The 2008 Wenchuan earthquake triggered an unprecedented number of landslides, creating an extraordinary natural laboratory to investigate the evolution of post-seismic landslides and their impacts on environment. Using the vegetation recovery rate as an indicator, we present the observational evidence of the post-seismic landslide evolution based on MODIS NDVI time series between 2000 and 2018. Using a simple vegetation recovery rate (VRR) function, we quantify the rate of vegetation regrowth in the Wenchuan earthquake affected area, and discuss the decaying trend of post-seismic landslide activities. Our findings show that 83% of the co-seismic landslides become inactive within a decade. The NDVI trend suggests that landslide activity may return to the pre-earthquake level within 18 years. The sensitivity of vegetation regrowth to post-seismic landsliding thus offers a great potential to improve our understanding of the spatio-temporal evolution of the post-seismic landslide activities. © 2019 Elsevier Inc.
英文关键词	Landscape evolution; Post-seismic landslides; Vegetation recovery; Wenchuan earthquake
语种	英语
scopus关键词	Landslides; Radiometers; Recovery; Risk assessment; Vegetation; 2008 wenchuan earthquakes; Landscape evolutions; Quantitative prediction; Risk assessment and managements; Seismic landslides; Spatiotemporal evolution; Vegetation recovery; Wenchuan Earthquake; Earthquakes; coseismic process; earthquake trigger; landscape evolution; landslide; MODIS; mountain region; NDVI; rainfall; risk assessment; Sichuan earthquake 2008; spatiotemporal analysis; vegetation type
来源期刊	Remote Sensing of Environment
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/179595
作者单位	State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology, Chengdu, Sichuan 610059, China; College of Earth Sciences, Chengdu University of Technology, Chengdu, Sichuan 610059, China; State Environmental Protection Key Laboratory of Synergetic Control and Joint Remediation for Soil & Water Pollution, Chengdu University of Technology, Chengdu, Sichuan 610059, China; Nagaoka University of Technology, Nagaoka, Niigata 940-2188, Japan
推荐引用方式 GB/T 7714	Yunus A.P.,Fan X.,Tang X.,et al. Decadal vegetation succession from MODIS reveals the spatio-temporal evolution of post-seismic landsliding after the 2008 Wenchuan earthquake[J],2020,236.
APA	Yunus A.P.,Fan X.,Tang X.,Jie D.,Xu Q.,&Huang R..(2020).Decadal vegetation succession from MODIS reveals the spatio-temporal evolution of post-seismic landsliding after the 2008 Wenchuan earthquake.Remote Sensing of Environment,236.
MLA	Yunus A.P.,et al."Decadal vegetation succession from MODIS reveals the spatio-temporal evolution of post-seismic landsliding after the 2008 Wenchuan earthquake".Remote Sensing of Environment 236(2020).