气候变化领域集成服务门户(CCPortal): Age dependence of xylogenesis and its climatic sensitivity in Smith fir on the south-eastern Tibetan Plateau

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DOI	10.1093/treephys/tps113
	Age dependence of xylogenesis and its climatic sensitivity in Smith fir on the south-eastern Tibetan Plateau
	Li, Xiaoxia; Liang, Eryuan; Gricar, Jozica; Prislan, Peter; Rossi, Sergio; Cufar, Katarina
通讯作者	Liang, EY (通讯作者)
发表日期	2013
ISSN	0829-318X
EISSN	1758-4469
起始页码	48
结束页码	56
卷号	33 期号:1
英文摘要	An age effect on growth trends and climate/growth relationships of trees can possibly be discovered by analysing the seasonal dynamics of xylem development. The aims of this study, therefore, were to compare xylem formation of young (43 +/- 4 years) and old (162 +/- 26 years) Smith fir (Abies georgei var. smithii (Viguie & Gaussen) W. C. Cheng & L. K. Fu) trees in the Sygera Mountains, south-eastern Tibetan Plateau and, to identify the association between wood formation and climate. The seasonal radial growth dynamics of young and old trees was monitored on microcores collected at weekly intervals during two growing seasons. Transverse sections through phloem, cambium and outermost xylem of 9-12 mu m thickness were observed with a light microscope under bright field and polarized light to follow the cambial activity and differentiation of the developing xylem. Young trees were characterized by an earlier onset of xylogenesis, a longer growing season and a higher growth rate, resulting in a higher number of xylem cells. Both young and old trees responded fast to changes of the minimum air temperature, confirming that this factor was dominant by controlling Smith fir growth on the south-eastern Tibetan Plateau.
关键词	TREE-RING GROWTH WOOD FORMATION CAMBIAL ACTIVITY SILVER-FIR SCOTS PINE ABIES-BALSAMEA BOREAL FOREST XYLEM PHENOLOGY SIZE
英文关键词	Abies georgei var; smithii; age dependence; dendroclimatology; minimum temperature; south-eastern Tibetan Plateau; tree ring; weekly wood formation; xylogenesis
语种	英语
WOS研究方向	Forestry
WOS类目	Forestry
WOS记录号	WOS:000314126400006
来源期刊	TREE PHYSIOLOGY
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/258215
推荐引用方式 GB/T 7714	Li, Xiaoxia,Liang, Eryuan,Gricar, Jozica,et al. Age dependence of xylogenesis and its climatic sensitivity in Smith fir on the south-eastern Tibetan Plateau[J]. 中国科学院青藏高原研究所,2013,33(1).
APA	Li, Xiaoxia,Liang, Eryuan,Gricar, Jozica,Prislan, Peter,Rossi, Sergio,&Cufar, Katarina.(2013).Age dependence of xylogenesis and its climatic sensitivity in Smith fir on the south-eastern Tibetan Plateau.TREE PHYSIOLOGY,33(1).
MLA	Li, Xiaoxia,et al."Age dependence of xylogenesis and its climatic sensitivity in Smith fir on the south-eastern Tibetan Plateau".TREE PHYSIOLOGY 33.1(2013).