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

doi:10.1016/j.ecolind.2016.01.041

CORC > 植物研究所 > 中国科学院植物研究所 > 植被与环境变化国家重点实验室

	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 2
刊名	ECOLOGICAL INDICATORS
	2016
卷号	66
关键词	Alpine treeline Treeline dynamics Tree rings Picea balfouriana Tree recruitment Nursing effect Safe sites
ISSN号	1470-160X
DOI	10.1016/j.ecolind.2016.01.041
文献子类	Article
英文摘要	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.
学科主题	Biodiversity Conservation ; Environmental Sciences
电子版国际标准刊号	1872-7034
出版地	AMSTERDAM
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)
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000388912300026
资助机构	National Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31361130339, 31300409, 31330015]
内容类型	期刊论文
源URL	[http://ir.ibcas.ac.cn/handle/2S10CLM1/24518]
专题	植被与环境变化国家重点实验室
作者单位	1.Finnish Forest Res Inst, POB 18, Vantaa 01301, Finland 2.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China
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.
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.
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).