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Summer temperature drives radial growth of alpine shrub willows on the northeastern Tibetan Plateau
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; Liang, EY
Source PublicationARCTIC ANTARCTIC AND ALPINE RESEARCH
2016
Volume48Issue:3Pages:461-468
DOI10.1657/AAAR0015-069
AbstractShrub 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.
Subject Area自然地理学
WOS IDWOS:000382800700002
Language英语
Indexed BySCI
KeywordDwarf Shrubs Tree-rings Climate Reconstruction Precipitation China Area Xylogenesis Mountains Responses
Cooperation Status国际
Department环境
SubtypeArticle
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Document Type期刊论文
Identifierhttp://ir.itpcas.ac.cn/handle/131C11/7642
Collection图书馆
Corresponding AuthorLiang, EY
Affiliation1.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
GB/T 7714
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.
APA Lu, XM .,Huang, R .,Wang, YF .,Sigdel, SR .,Dawadi, B .,...&Liang, EY.(2016).Summer temperature drives radial growth of alpine shrub willows on the northeastern Tibetan Plateau.ARCTIC ANTARCTIC AND ALPINE RESEARCH,48(3),461-468.
MLA Lu, XM ,et al."Summer temperature drives radial growth of alpine shrub willows on the northeastern Tibetan Plateau".ARCTIC ANTARCTIC AND ALPINE RESEARCH 48.3(2016):461-468.
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