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学科主题: 地理学::自然地理学
题名: Summer temperature drives radial growth of alpine shrub willows on the northeastern Tibetan Plateau
作者: Lu, XM (Lu, Xiaoming)1, 2; Huang, R (Huang, Ru)1, 2; Wang, YF (Wang, Yafeng)1; Sigdel, SR (Sigdel, Shalik Ram)1, 2; Dawadi, B (Dawadi, Binod)1, 3; Liang, EY (Liang, Eryuan)1, 4; Camarero, JJ (Julio Camarero, J.)5
通讯作者: Liang, EY
刊名: ARCTIC ANTARCTIC AND ALPINE RESEARCH
发表日期: 2016
DOI: 10.1657/AAAR0015-069
卷: 48, 期:3, 页:461-468
收录类别: SCI
合作性质: 国际
文章类型: Article
英文摘要: Shrub willows (Salix species) are widespread beyond the latitudinal and altitudinal tree lines. Their ring width has been shown to be a reliable ecological indicator for changes in the harsh cold conditions in the Arctic, but little is known on their growth in alpine conditions. The shrubby Salix oritrepha grows above the treeline on the northeastern Tibetan Plateau (TP), making it an interesting woody species to explore responses of alpine communities to ongoing climate warming in this area. Since precipitation increases with increasing elevation (until 4670 m) in the study area, we hypothesize that the growth of S. oritrepha is mainly constrained by cold summer temperature. We sampled 35 S. oritrepha individuals above the juniper treeline (4200 m), and took basal wood cross sections for dendrochronological analyses. Few missing rings were detected at the shoot base when serial sectioning was applied. Ring width (RW) and basal area increment (BAI) standard chronologies were established. We found that BAI reflected a stronger climatic signal than RW. The radial growth was constrained by low July to August temperatures. We expect that climate warming would enhance the growth of alpine willows, which could alter the services provided by these high-elevation ecosystems.
语种: 英语
WOS记录号: WOS:000382800700002
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.itpcas.ac.cn/handle/131C11/7642
Appears in Collections:图书馆_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Alpine Ecol & Biodivers, Bldg 3,Courtyard 16,Lin Cui Rd, Beijing 100101, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Tribhuvan Univ, Cent Dept Hydrol & Meteorol, Kathmandu, Nepal
4.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China
5.Inst Pirenaico Ecol IPE CSIC, Avda Montanana 1005, Zaragoza 50059, Spain

Recommended Citation:
Lu, XM ,Huang, R ,Wang, YF ,et al. Summer temperature drives radial growth of alpine shrub willows on the northeastern Tibetan Plateau[J]. ARCTIC ANTARCTIC AND ALPINE RESEARCH,2016,48(3):461-468.
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文件名: V.48(3) 461-468 2016.pdf
格式: Adobe PDF
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