气候变化领域集成服务门户(CCPortal): Dendrochronological potential of the alpine shrub Rhododendron nivale on the south-eastern Tibetan Plateau

CCPortal

DOI	10.1093/aob/mcp158
	Dendrochronological potential of the alpine shrub Rhododendron nivale on the south-eastern Tibetan Plateau
	Liang, Eryuan; Eckstein, Dieter
通讯作者	Liang, EY (通讯作者)
发表日期	2009
ISSN	0305-7364
EISSN	1095-8290
起始页码	665
结束页码	670
卷号	104 期号:4
英文摘要	Shrubs and dwarf shrubs are wider spread on the Tibetan Plateau than trees and hence offer a unique opportunity to expand the present dendrochronological network into extreme environments beyond the survival limit of trees. Alpine shrublands on the Tibetan Plateau are characterized by rhododendron species. The dendrochronological potential of one alpine rhododendron species and its growth response to the extreme environment on the south-east Tibetan Plateau were investigated. Twenty stem discs of the alpine snowy rhododendron (Rhododendron nivale) were collected close to the tongue of the Zuoqiupu Glacier in south-east Tibet, China. The skeleton plot technique was used for inter-comparison between samples to detect the growth pattern of each stem section. The ring-width chronology was developed by fitting a negative exponential function or a straight line of any slope. Bootstrapping correlations were calculated between the standard chronology and monthly climate data. The wood of snowy rhododendron is diffuse-porous with evenly distributed small-diameter vessels. It has well-defined growth rings. Most stem sections can be visually and statistically cross-dated. The resulting 75-year-long standard ring-width chronology is highly correlated with a timberline fir chronology about 200 km apart, providing a high degree of confidence in the cross-dating. The climate/growth association of alpine snowy rhododendron and of this timberline fir is similar, reflecting an impact of monthly mean minimum temperatures in November of the previous year and in July during the year of ring formation. The alpine snowy rhododendron offers new research directions to investigate the environmental history of the Tibetan Plateau in those regions where up to now there was no chance of applying dendrochronology.
关键词	TEMPERATURE RECONSTRUCTION TREE RINGS GLACIER CLIMATE JUNIPER RIVER AREA
英文关键词	South-east Tibetan Plateau; Rhododendron nivale; alpine shrub; growth ring; cross-dating; dendroclimatological potential; climate; growth association
语种	英语
WOS研究方向	Plant Sciences
WOS类目	Plant Sciences
WOS记录号	WOS:000269195900006
来源期刊	ANNALS OF BOTANY
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/257656
推荐引用方式 GB/T 7714	Liang, Eryuan,Eckstein, Dieter. Dendrochronological potential of the alpine shrub Rhododendron nivale on the south-eastern Tibetan Plateau[J]. 中国科学院青藏高原研究所,2009,104(4).
APA	Liang, Eryuan,&Eckstein, Dieter.(2009).Dendrochronological potential of the alpine shrub Rhododendron nivale on the south-eastern Tibetan Plateau.ANNALS OF BOTANY,104(4).
MLA	Liang, Eryuan,et al."Dendrochronological potential of the alpine shrub Rhododendron nivale on the south-eastern Tibetan Plateau".ANNALS OF BOTANY 104.4(2009).