气候变化领域集成服务门户(CCPortal): Spatial patterns of Smith fir alpine treelines on the south-eastern Tibetan Plateau support that contingent local conditions drive recent treeline patterns

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DOI	10.1080/17550874.2012.704647
	Spatial patterns of Smith fir alpine treelines on the south-eastern Tibetan Plateau support that contingent local conditions drive recent treeline patterns
	Wang, Yafeng; Julio Camarero, J.; Luo, Tianxiang; Liang, Eryuan
通讯作者	Liang, EY (通讯作者)
发表日期	2012
ISSN	1755-0874
EISSN	1755-1668
起始页码	311
结束页码	321
卷号	5 期号:3
英文摘要	Background: Recent work has shown little change in the position of the Smith fir treeline on the south-eastern Tibetan Plateau in response to global warming. However, the relationship between tree distribution patterns within the treeline ecotone and low responsiveness is unknown, and additional constraints than climate might be major drivers of these patterns (e.g. microsite availability for regeneration). Aims: To characterise the spatial patterns of Smith fir alpine treelines and to infer the underlying processes driving their dynamics. Methods: We investigated spatial patterns of Smith fir trees across two treeline ecotones in the Sygera Mountains, south-eastern Tibetan Plateau. The O(r)-ring statistic was used to analyse the univariate and bivariate spatial point patterns of three size classes (adults, juveniles and seedlings). Results: Mature trees presented random spatial patterns. Clusters of juveniles and seedlings colonised areas not occupied by mature trees. Seedlings were clustered and established preferentially near juvenile firs, Rhododendron mats and over mosslichen and organic matter substrates, indicating the importance of microsite availability for successful Smith fir recruitment. Conclusions: Local factors such as microsite availability may play a major role in driving recent Smith fir treeline patterns and determine the lack of significant warming-induced upward shifts of these ecotones.
关键词	SPECIES ASSOCIATIONS CLIMATIC VARIABILITY SYGERA MOUNTAINS TUNDRA ECOTONE FOREST RECRUITMENT LINE ESTABLISHMENT CONSEQUENCES REGENERATION
英文关键词	Abies georgei var; smithii; microsite availability; O-ring statistic; recruitment; south-eastern Tibetan Plateau; spatial pattern; stand structure; treeline
语种	英语
WOS研究方向	Plant Sciences
WOS类目	Plant Sciences
WOS记录号	WOS:000312454900005
来源期刊	PLANT ECOLOGY & DIVERSITY
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/258007
推荐引用方式 GB/T 7714	Wang, Yafeng,Julio Camarero, J.,Luo, Tianxiang,et al. Spatial patterns of Smith fir alpine treelines on the south-eastern Tibetan Plateau support that contingent local conditions drive recent treeline patterns[J]. 中国科学院青藏高原研究所,2012,5(3).
APA	Wang, Yafeng,Julio Camarero, J.,Luo, Tianxiang,&Liang, Eryuan.(2012).Spatial patterns of Smith fir alpine treelines on the south-eastern Tibetan Plateau support that contingent local conditions drive recent treeline patterns.PLANT ECOLOGY & DIVERSITY,5(3).
MLA	Wang, Yafeng,et al."Spatial patterns of Smith fir alpine treelines on the south-eastern Tibetan Plateau support that contingent local conditions drive recent treeline patterns".PLANT ECOLOGY & DIVERSITY 5.3(2012).