Climate sensitivity of high altitude tree growth across the Hindu Kush Himalaya

doi:10.1016/j.foreco.2021.118963

	Climate sensitivity of high altitude tree growth across the Hindu Kush Himalaya
	Zheng, Lili 1,2; Shi, Peili 1,2; Song, Minghua 1; Zhou, Tiancai 1,2; Zong, Ning 1; Zhang, Xianzhou 1,2
刊名	FOREST ECOLOGY AND MANAGEMENT
	2021-04-15
卷号	486 页码:11
关键词	Global warming Spatio-temporal patterns Linear-mixed effects models Spring drought Winter temperature
ISSN号	0378-1127
DOI	10.1016/j.foreco.2021.118963
通讯作者	Shi, Peili(shipl@igsnrr.ac.cn)
英文摘要	High altitude tree growth is predominantly limited by low temperature, and thus more responsive to climate warming. The Hindu Kush Himalaya (HKH) has experienced the most rapid climate warming in the world, however, a regional study on climate sensitivity of high altitude tree growth is still lacking. We collected tree ring growth data of 21 high altitude tree species from 128 sites and used linear mixed-effects models to comprehensively quantify the best explanatory climate variables of tree growth and the spatio-temporal pattern of climate sensitivity across the HKH. Tree growth was negatively sensitive to spring temperature, and positively sensitive to spring precipitation and self-calibrated Palmer Drought Severity Index (scPDSI) in the westerly-dominated region, while positively sensitive to temperature, particularly in winter in the monsoon-dominated region. Tree growth was more sensitive to climate change in Juniperus and Picea than in Abies. But only the tree growth of Abies showed more sensitivity at higher- than at lower-altitudes. Climate sensitivity was significantly higher after the 1950s than before the 1950s, but this trend disappeared after the 1980s. Our results demonstrate the complexity of climate sensitivity of tree growth under a changing climate across the study region. Under the future IPCC climate change scenario, our study further suggests that spring drought caused by the warmer and drier climate will be detrimental to tree growth in the relatively drier region of the central and western HKH, while warming climate may be beneficial to tree growth in the relatively humid eastern HKH. Our findings indicate that regional studies of tree growth sensitivity to climate change should go beyond spatio-temporal patterns to consider the identity of taxa and the long-term divergent responses. The results advance the understanding of spatio-temporal patterns of tree growth sensitivity to climate change and contribute a valuable perspective of biogeographical vegetation change in the world highest elevation of the vulnerable Himalayas.
资助项目	National Natural Science Foundation of China ; ICIMOD Joint Research Project[41661144045] ; China Postdoctoral Science Foundation[2019M660778]
WOS研究方向	Forestry
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000621599200009
资助机构	National Natural Science Foundation of China ; ICIMOD Joint Research Project ; China Postdoctoral Science Foundation
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/160411]
专题	中国科学院地理科学与资源研究所
通讯作者	Shi, Peili
作者单位	1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Zheng, Lili,Shi, Peili,Song, Minghua,et al. Climate sensitivity of high altitude tree growth across the Hindu Kush Himalaya[J]. FOREST ECOLOGY AND MANAGEMENT,2021,486:11.
APA	Zheng, Lili,Shi, Peili,Song, Minghua,Zhou, Tiancai,Zong, Ning,&Zhang, Xianzhou.(2021).Climate sensitivity of high altitude tree growth across the Hindu Kush Himalaya.FOREST ECOLOGY AND MANAGEMENT,486,11.
MLA	Zheng, Lili,et al."Climate sensitivity of high altitude tree growth across the Hindu Kush Himalaya".FOREST ECOLOGY AND MANAGEMENT 486(2021):11.