气候变化领域集成服务门户(CCPortal): Tree growth responses and resilience after the 1950-Zayu-Medog earthquake, southeast Tibetan Plateau

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DOI	10.1016/j.dendro.2020.125724
	Tree growth responses and resilience after the 1950-Zayu-Medog earthquake, southeast Tibetan Plateau
	Fu, Ting; Liang, Eryuan; Lu, Xiaoming; Gao, Shan; Zhang, Lin; Zhu, Haifeng; Rossi, Sergio; Camarero, J. Julio
通讯作者	Lu, XM (通讯作者)
发表日期	2020
ISSN	1125-7865
EISSN	1612-0051
卷号	62
英文摘要	Understanding how severe disturbances affect forest dynamics is fundamental in ecology, conservation and management. Earthquakes of large magnitude severely impact mountain landscapes, causing strong disturbances on forests. However, it is unknown how the resilience of tree growth after strong earthquakes changes as a function of site factors as elevation. Herein, we investigated the radial-growth responses of surviving trees after the 1950-Zayu-Medog MW 8.6 earthquake which devastated the southeastern Tibetan Plateau. We reconstructed radial growth dynamics of Abies delavayi var. motuoensis after 1950 in six sites selected along an elevational transect located in the Medog valley. Post-earthquake growth responses were detected among 60% of sampled trees in the period 1950-1955, but these responses varied depending on site elevation. Trees at the alpine treeline were less disturbed compared to those located at mid and low elevations. Severe growth suppressions, including the formation of missing rings, occurred during the first three years after the earthquake, and were stronger at low elevations. Growth releases mostly occurred after 1954. Long-term growth release, lasting more than ten years, was mainly observed at low elevations, near talus fans prone to landslides and rock falls. Growth rates returned to pre-earthquake values 45 years after the earthquake occurrence. Our results evidence how tectonic influences on tree growth depend on local factors as elevation, and demonstrate that tree resilience after severe geo-hazards is contingent on site conditions.
关键词	IMPACTS LANDSLIDES VEGETATION DESTRUCTION RECOVERY FOREST FAULT
英文关键词	Dendrogeomorphology; Tree rings; Tectonic activity; Growth release; Growth suppression; Mountain forests
语种	英语
WOS研究方向	Forestry ; Physical Geography
WOS类目	Forestry ; Geography, Physical
WOS记录号	WOS:000552252500001
来源期刊	DENDROCHRONOLOGIA
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/259989
推荐引用方式 GB/T 7714	Fu, Ting,Liang, Eryuan,Lu, Xiaoming,et al. Tree growth responses and resilience after the 1950-Zayu-Medog earthquake, southeast Tibetan Plateau[J]. 中国科学院青藏高原研究所,2020,62.
APA	Fu, Ting.,Liang, Eryuan.,Lu, Xiaoming.,Gao, Shan.,Zhang, Lin.,...&Camarero, J. Julio.(2020).Tree growth responses and resilience after the 1950-Zayu-Medog earthquake, southeast Tibetan Plateau.DENDROCHRONOLOGIA,62.
MLA	Fu, Ting,et al."Tree growth responses and resilience after the 1950-Zayu-Medog earthquake, southeast Tibetan Plateau".DENDROCHRONOLOGIA 62(2020).