Fine-scale distribution of treeline trees and the nurse plant facilitation on the eastern Tibetan Plateau

doi:10.1016/j.ecolind.2016.01.041

	Fine-scale distribution of treeline trees and the nurse plant facilitation on the eastern Tibetan Plateau
	Lyu, Lixin ; Zhang, Qi-Bin ; Deng, Xu ; Makinen, Harri 1
	2016
发表期刊	ECOLOGICAL INDICATORS
ISSN	1470-160X
卷号	66 页码:251-258
摘要	Above-average climate warming occurred during the 20th century in high altitude regions, and alpine treelines are believed to be an early indicator to respond to these warming-related changes. However, empirical investigations on treeline dynamics showed diverse results. The main objectives of this study are: (1) to investigate if treeline position shifted and if tree recruitment changed along with climate warming, and (2) to test if adult trees have nursing effect on tree establishment at treelines. We investigated two Balfour spruce (Picea balfouriana Rehd. et Wils.) treelines in Chang Niang (CNT) and Dang Dui (DDT), Dingqing county, Changdu prefecture, eastern Tibet. At each treeline site, three replicate plots with a size 30 m x 50 m were established. The coordinates of each tree within the plots were recorded and the age of each tree was identified by dendrochronological method. The changes in treeline position and tree recruitment were examined from spatially fine-scale distribution of trees and their age structure. The spatial patterns of individual trees were analyzed to infer the neighborhood effects. Results indicate that plots CNT2, CNT3, DDT1 and DDT2 showed stable treeline position during the last century, whereas plots CNT1 and DDT3 showed treeline advancing movement. Tree recruitments in all the six plots were enhanced during the 20th century, with two peaks occurring in the 1890-1910s and the 1950-1990s. Seedlings and saplings showed a general clustered distribution in all the six plots. The diverse pattern of treeline movement and episodic regeneration suggest that the treeline activity is not merely a result of climate change. Nursing effects from adult trees may play an important role in shaping the treeline activities on the eastern Tibetan Plateau. Our findings reveal diverse patterns in treeline dynamics at a local scale and highlight the importance of incorporating biotic interactions into species distribution modeling approaches. (C) 2016 The Authors. Published by Elsevier Ltd.
关键词	Alpine treeline Treeline dynamics Tree rings Picea balfouriana Tree recruitment Nursing effect Safe sites
学科领域	Biodiversity Conservation ; Environmental Sciences
DOI	10.1016/j.ecolind.2016.01.041
收录类别	SCI
语种	英语
WOS关键词	CONIFER SEEDLING DISTRIBUTION ; ALPINE-TREELINE ; CLIMATE-CHANGE ; ALTITUDINAL GRADIENT ; ELEVATIONAL LIMITS ; CAUCASUS MOUNTAINS ; SPATIAL-PATTERNS ; PINUS-UNCINATA ; RANGE SHIFTS ; RECRUITMENT
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000388912300026
出版者	ELSEVIER
文献子类	Article
出版地	AMSTERDAM
EISSN	1872-7034
资助机构	National Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31361130339, 31300409, 31330015]
作者邮箱	qbzhang@ibcas.ac.cn
作品OA属性	hybrid
引用统计	被引频次：29[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/25166
专题	植被与环境变化国家重点实验室
作者单位	1.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 2.Finnish Forest Res Inst, POB 18, Vantaa 01301, Finland
推荐引用方式 GB/T 7714	Lyu, Lixin,Zhang, Qi-Bin,Deng, Xu,et al. Fine-scale distribution of treeline trees and the nurse plant facilitation on the eastern Tibetan Plateau[J]. ECOLOGICAL INDICATORS,2016,66:251-258.
APA	Lyu, Lixin,Zhang, Qi-Bin,Deng, Xu,&Makinen, Harri.(2016).Fine-scale distribution of treeline trees and the nurse plant facilitation on the eastern Tibetan Plateau.ECOLOGICAL INDICATORS,66,251-258.
MLA	Lyu, Lixin,et al."Fine-scale distribution of treeline trees and the nurse plant facilitation on the eastern Tibetan Plateau".ECOLOGICAL INDICATORS 66(2016):251-258.

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