气候变化领域集成服务门户(CCPortal): Summer temperature drives radial growth of alpine shrub willows on the northeastern Tibetan Plateau

CCPortal

DOI	10.1657/AAAR0015-069
	Summer temperature drives radial growth of alpine shrub willows on the northeastern Tibetan Plateau
	Lu, Xiaoming; Huang, Ru; Wang, Yafeng; Sigdel, Shalik Ram; Dawadi, Binod; Liang, Eryuan; Julio Camarero, J.
通讯作者	Liang, EY (通讯作者)
发表日期	2016
ISSN	1523-0430
EISSN	1938-4246
起始页码	461
结束页码	468
卷号	48 期号:3
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.
关键词	DWARF SHRUBS TREE-RINGS CLIMATE RECONSTRUCTION PRECIPITATION CHINA AREA XYLOGENESIS MOUNTAINS RESPONSES
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Physical Geography
WOS类目	Environmental Sciences ; Geography, Physical
WOS记录号	WOS:000382800700002
来源期刊	ARCTIC ANTARCTIC AND ALPINE RESEARCH
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/258823
推荐引用方式 GB/T 7714	Lu, Xiaoming,Huang, Ru,Wang, Yafeng,et al. Summer temperature drives radial growth of alpine shrub willows on the northeastern Tibetan Plateau[J]. 中国科学院青藏高原研究所,2016,48(3).
APA	Lu, Xiaoming.,Huang, Ru.,Wang, Yafeng.,Sigdel, Shalik Ram.,Dawadi, Binod.,...&Julio Camarero, J..(2016).Summer temperature drives radial growth of alpine shrub willows on the northeastern Tibetan Plateau.ARCTIC ANTARCTIC AND ALPINE RESEARCH,48(3).
MLA	Lu, Xiaoming,et al."Summer temperature drives radial growth of alpine shrub willows on the northeastern Tibetan Plateau".ARCTIC ANTARCTIC AND ALPINE RESEARCH 48.3(2016).