气候变化领域集成服务门户(CCPortal): The alpine dwarf shrub Cassiope fastigiata in the Himalayas: does it reflect site-specific climatic signals in its annual growth rings?

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DOI	10.1007/s00468-014-1128-5
	The alpine dwarf shrub Cassiope fastigiata in the Himalayas: does it reflect site-specific climatic signals in its annual growth rings?
	Liang, Eryuan; Liu, Wenwen; Ren, Ping; Dawadi, Binod; Eckstein, Dieter
通讯作者	Liang, EY (通讯作者)
发表日期	2015
ISSN	0931-1890
EISSN	1432-2285
起始页码	79
结束页码	86
卷号	29 期号:1
英文摘要	This is the first time to show that alpine Cassiope fastigiata shrubs form distinct annual growth rings and record climatic signals. Cassiope species grow as dwarf shrubs at high latitudes and high elevations. Unlike in the High Arctic, not much is known about their age and growth on the Tibetan Plateau and in the Himalayas. There, Cassiope fastigiata could potentially serve as indicator species for climate change. The objective of our study, therefore, was to investigate its dendroecological potential. For this purpose, 20 shoots were collected both on the south-eastern Tibetan Plateau (site 1) and in the central Himalayas (site 2). Cross-sections of 8-10 mu m in thickness were cut and the widths of the clearly distinguishable growth rings were measured. No missing outer rings were detected at the shoot base when serial sectioning was applied. Of the 40 shoots, 19 at site 1 and 10 at site 2 showed similar growth patterns. The remaining shoots were excluded from further analyses. C. fastigiata formed up to 30 annual growth rings whose width varied from 13 to 150 mu m. Its growth at both sites was positively associated with temperature in late winter/early spring, and at site 2 additionally with precipitation in late autumn of the preceding year and spring of the current year. Our study confirmed that C. fastigiata forms distinct annual growth rings. The growth response to precipitation at site 1 and the lack thereof at site 2 result from differences in hydrology between the south-eastern Tibetan Plateau and the central Himalayas.
关键词	TETRAGONA RECONSTRUCTION TEMPERATURE VEGETATION MOUNTAINS JUNIPER TUNDRA LINE
英文关键词	Dendroecology; Growth-ring formation; High altitude; Treeline; Tibetan Plateau; Central Himalayas
语种	英语
WOS研究方向	Forestry
WOS类目	Forestry
WOS记录号	WOS:000348451800008
来源期刊	TREES-STRUCTURE AND FUNCTION
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/258554
推荐引用方式 GB/T 7714	Liang, Eryuan,Liu, Wenwen,Ren, Ping,et al. The alpine dwarf shrub Cassiope fastigiata in the Himalayas: does it reflect site-specific climatic signals in its annual growth rings?[J]. 中国科学院青藏高原研究所,2015,29(1).
APA	Liang, Eryuan,Liu, Wenwen,Ren, Ping,Dawadi, Binod,&Eckstein, Dieter.(2015).The alpine dwarf shrub Cassiope fastigiata in the Himalayas: does it reflect site-specific climatic signals in its annual growth rings?.TREES-STRUCTURE AND FUNCTION,29(1).
MLA	Liang, Eryuan,et al."The alpine dwarf shrub Cassiope fastigiata in the Himalayas: does it reflect site-specific climatic signals in its annual growth rings?".TREES-STRUCTURE AND FUNCTION 29.1(2015).