Response of tree rings to earthquakes during the past 350 years at Jiuzhaigou in the eastern Tibet

doi:10.1016/j.scitotenv.2020.138714

	Response of tree rings to earthquakes during the past 350 years at Jiuzhaigou in the eastern Tibet
	Fan, Jiawei 1; Wei, Xiaotong 1; Shi, Wei 1; Guo, Qiaoqiao 1; Zhang, Siqi 1; Xu, Hongyan 1; Song, Huiming 4; Xu, Chenxi 2,3; An, Wenling 2,3; Jiang, Hanchao 1
刊名	SCIENCE OF THE TOTAL ENVIRONMENT
	2020-08-20
卷号	731 页码:12
关键词	Dendroseismology Dendroclimatology Growth suppression Shaking intensity Hazardous environment Tibetan Plateau
ISSN号	0048-9697
DOI	10.1016/j.scitotenv.2020.138714
通讯作者	Fan, Jiawei(jwfan@ies.ac.cn) ; Jiang, Hanchao(hcjiang@ies.ac.cn)
英文摘要	Trees growing in the tectonically active and climatically sensitive regions, such as the Tibetan Plateau, frequently suffer damage from strong earthquakes and extreme hydro-climatic events. Spruce trees in the Jiuzhaigou National Park exhibited abrupt periods of growth suppression with durations of 3-9 years, which was demonstrated to have recorded five seismic events during the last 350 years after excluding the climatic impacts. The ring-width reductions occurred immediately after earthquakes in the growing seasons of 1748, 1879 and 2017, and one year later in 1961 when the earthquake occurred after the growing season in 1960. In contrast, seismic signals of the 1976 earthquake were moderated in the tree-ring indices by improved climatic conditions in 1975. The intensity prediction equation and isoseismal modelling results suggested that past earthquakes required a minimum intensity threshold of 6.2-6.8 MMI to significantly impact tree growth, thus indicating a minimum magnitude threshold of M(w)5.3 for near-field (<= 20 km) earthquakes and M(w)7.4 for regional (<= 115 km) earthquakes. These results would greatly improve the dendroseismological reconstruction of past earthquake characteristics and the valid assessment of future probabilities in the eastern Tibet, and help to identify and eliminate seismic signals in the dendroclimatological studies in the hazardous environments. (C) 2020 Elsevier B.V. All rights reserved.
资助项目	National Key Research and Development Program of China[2017YFA0603400] ; National Natural Science Foundation of China[41702179] ; National Natural Science Foundation of China[41602358] ; Chinese Academy of Sciences (CAS) Pioneer Hundred Talents Program ; special project of the fundamental scientific research of the Institute of Geology, China Earthquake Administration[IGCEA1713]
WOS关键词	COSEISMIC DEFORMATION ; ESTIMATING LOCATIONS ; INTENSITY ; RECONSTRUCTION ; ATTENUATION ; PLATEAU ; SICHUAN ; CHINA ; ASIA ; PRECIPITATION
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000537419200012
资助机构	National Key Research and Development Program of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences (CAS) Pioneer Hundred Talents Program ; special project of the fundamental scientific research of the Institute of Geology, China Earthquake Administration
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/14859]
专题	地球环境研究所_现代环境研究室
通讯作者	Fan, Jiawei; Jiang, Hanchao
作者单位	1.China Earthquake Adm, State Key Lab Earthquake Dynam, Inst Geol, Beijing 100029, Peoples R China 2.CAS Ctr Excellence Life & Paleoenvironm, Beijing 100044, Peoples R China 3.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 4.Chinese Acad Sci, Inst Earth Environm, Xian 710061, Peoples R China
推荐引用方式 GB/T 7714	Fan, Jiawei,Wei, Xiaotong,Shi, Wei,et al. Response of tree rings to earthquakes during the past 350 years at Jiuzhaigou in the eastern Tibet[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2020,731:12.
APA	Fan, Jiawei.,Wei, Xiaotong.,Shi, Wei.,Guo, Qiaoqiao.,Zhang, Siqi.,...&Jiang, Hanchao.(2020).Response of tree rings to earthquakes during the past 350 years at Jiuzhaigou in the eastern Tibet.SCIENCE OF THE TOTAL ENVIRONMENT,731,12.
MLA	Fan, Jiawei,et al."Response of tree rings to earthquakes during the past 350 years at Jiuzhaigou in the eastern Tibet".SCIENCE OF THE TOTAL ENVIRONMENT 731(2020):12.