气候变化领域集成服务门户(CCPortal): Phenological variation in height growth and needle unfolding of Smith fir along an altitudinal gradient on the southeastern Tibetan Plateau

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DOI	10.1007/s00468-012-0793-5
	Phenological variation in height growth and needle unfolding of Smith fir along an altitudinal gradient on the southeastern Tibetan Plateau
	Wang, Yafeng; Li, Xiaoxia; Dawadi, Binod; Eckstein, Dieter; Liang, Eryuan
通讯作者	Liang, EY (通讯作者)
发表日期	2013
ISSN	0931-1890
EISSN	1432-2285
起始页码	401
结束页码	407
卷号	27 期号:2
英文摘要	Little is known about variations in tree phenology and their driving forces on the Tibetan Plateau. Herein, we monitored shoot growth and needle unfolding of Smith fir (Abies georgei var. smithii) between 3,800 and 4,360 m a.s.l. in the Sygera Mountains, southeastern Tibetan Plateau. The trees were 0.45-1.48 m high and 12-39 years old. Their phenology was observed every week between May 5 and August 26, 2011. With increasing elevation, shoot growth and needle unfolding started increasingly later, thus indicating a thermal driving force. Although the weekly shoot increment was decreasing with increasing elevation, height growth at various elevations ended in the same week, implying other factors than temperature being responsible for the end of height growth. The accumulated heat sum for the onset of shoot growth appeared to be lower between 4,200 and 4,360 m than between 3,800 and 4,000 m. The anticipated spring warming will likely induce an earlier onset of shoot growth, whereas shoot growth will apparently not benefit from autumn warming. However, the lack of long-term data records precluded a robust statistical test of the underlying cause-and-effect relationships involved in the phenological variations of height growth and needle unfolding.
关键词	CLIMATE-CHANGE IMPACTS SYGERA MOUNTAINS PINUS-SYLVESTRIS TREE-LINE TEMPERATURE PHOTOPERIOD INDUCTION CESSATION RESPONSES DORMANCY
英文关键词	Phenology; Smith fir; Height growth; Leaf unfolding; Accumulated temperature sum; Altitudinal gradient; Tibetan Plateau
语种	英语
WOS研究方向	Forestry
WOS类目	Forestry
WOS记录号	WOS:000316403400007
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/258194
推荐引用方式 GB/T 7714	Wang, Yafeng,Li, Xiaoxia,Dawadi, Binod,et al. Phenological variation in height growth and needle unfolding of Smith fir along an altitudinal gradient on the southeastern Tibetan Plateau[J]. 中国科学院青藏高原研究所,2013,27(2).
APA	Wang, Yafeng,Li, Xiaoxia,Dawadi, Binod,Eckstein, Dieter,&Liang, Eryuan.(2013).Phenological variation in height growth and needle unfolding of Smith fir along an altitudinal gradient on the southeastern Tibetan Plateau.TREES-STRUCTURE AND FUNCTION,27(2).
MLA	Wang, Yafeng,et al."Phenological variation in height growth and needle unfolding of Smith fir along an altitudinal gradient on the southeastern Tibetan Plateau".TREES-STRUCTURE AND FUNCTION 27.2(2013).