Gradual expansion of moisture sensitive Abies spectabilis forest in the Trans-Himalayan zone of central Nepal associated with climate change

	Gradual expansion of moisture sensitive Abies spectabilis forest in the Trans-Himalayan zone of central Nepal associated with climate change
	Tiwari, Achyut 1,2,3; Fan, Ze-Xin 1; Jump, Alistair S.5,6; Li, Shu-Feng 1; Zhou, Zhe-Kun1,4
	2017
发表期刊	DENDROCHRONOLOGIA
ISSN	1125-7865
卷号	41 页码:34-43
摘要	Population structure and tree recruitment dynamics in the natural treeline ecotone of high mountains are strong indicators of vegetation responses to climate. Here, we examined recruitment dynamics of Abies spectabilis across the treeline ecotone (3439-3638 m asl) of Chimang Lekh of Annapurna Conservation Area in the Trans-Himalayan zone of central Nepal. Dendrochronological techniques were used to establish stand age structure by ring counts of adults, and by terminal bud scar count for seedlings and saplings. The results showed abundant seedling recruitment, higher regenerative inertia and colonization with a consistent range shift of the A. spectabilis treeline. The upward expansion of this sub-alpine treeline was found to be driven by a strong dependence of seedling recruitment and radial growth on snowmelt and precipitation as temperatures rise. The radial growth of A. spectabilis at the alpine timberline ecotone (ATE) and closed timberline forest (CTF) showed sensitivity to spring season (March-May) climate. Tree ring indices of CTF showed a strong positive correlation with spring and annual precipitation, and a significant negative correlation with spring and annual temperature, however, moisture sensitivity was less strong at ATE than CTF. (C) 2016 Elsevier GmbH. All rights reserved.
关键词	Trans-himalaya Treeline Recruitment Ecotone
收录类别	SCI
语种	英语
WOS记录号	WOS:000406004600005
引用统计
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/54860
专题	中国科学院东亚植物多样性与生物地理学重点实验室
作者单位	1.Chinese Acad Sci, Xishuangbanna Trop Bot Garden, Key Lab Trop Forest Ecol, Beijing 666303, Yunnan, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Tribhuvan Univ, Tri Chandra Campus, Kathmandu, Nepal 4.Chinese Acad Sci, Kunming Inst Bot, Key Lab Biogeog & Biodivers, Kunming 650204, Yunnan, Peoples R China 5.Univ Stirling, Sch Nat Sci, Biol & Environm Sci, Stirling FK9 4LA, Scotland 6.CREAF, Campus Bellaterra UAB,Edifici C, Cerdanyola Del Valles 08193, Spaina
推荐引用方式 GB/T 7714	Tiwari, Achyut,Fan, Ze-Xin,Jump, Alistair S.,et al. Gradual expansion of moisture sensitive Abies spectabilis forest in the Trans-Himalayan zone of central Nepal associated with climate change[J]. DENDROCHRONOLOGIA,2017,41:34-43.
APA	Tiwari, Achyut,Fan, Ze-Xin,Jump, Alistair S.,Li, Shu-Feng,&Zhou, Zhe-Kun.(2017).Gradual expansion of moisture sensitive Abies spectabilis forest in the Trans-Himalayan zone of central Nepal associated with climate change.DENDROCHRONOLOGIA,41,34-43.
MLA	Tiwari, Achyut,et al."Gradual expansion of moisture sensitive Abies spectabilis forest in the Trans-Himalayan zone of central Nepal associated with climate change".DENDROCHRONOLOGIA 41(2017):34-43.

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