Altered dynamics of broad-leaved tree species in a Chinese subtropical montane mixed forest: the role of an anomalous extreme 2008 ice storm episode

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	Altered dynamics of broad-leaved tree species in a Chinese subtropical montane mixed forest: the role of an anomalous extreme 2008 ice storm episode
	Ge, Jielin 1,2; Xiong, Gaoming 1; Wang, Zhixian 3; Zhang, Mi 4; Zhao, Changming 1; Shen, Guozhen 1; Xu, Wenting 1; Xie, Zongqiang 1
	2015-04-01
发表期刊	ECOLOGY AND EVOLUTION
卷号	5 期号:7 页码:1484-1493
文章类型	Article
摘要	Extreme climatic events can trigger gradual or abrupt shifts in forest ecosystems via the reduction or elimination of foundation species. However, the impacts of these events on foundation species' demography and forest dynamics remain poorly understood. Here we quantified dynamics for both evergreen and deciduous broad-leaved species groups, utilizing a monitoring permanent plot in a subtropical montane mixed forest in central China from 2001 to 2010 with particular relevance to the anomalous 2008 ice storm episode. We found that both species groups showed limited floristic alterations over the study period. For each species group, size distribution of dead individuals approximated a roughly irregular and flat shape prior to the ice storm and resembled an inverse J-shaped distribution after the ice storm. Furthermore, patterns of mortality and recruitment displayed disequilibrium behaviors with mortality exceeding recruitment for both species groups following the ice storm. Deciduous broad-leaved species group accelerated overall diameter growth, but the ice storm reduced evergreen small-sized diameter growth. We concluded that evergreen broad-leaved species were more susceptible to ice storms than deciduous broad-leaved species, and ice storm events, which may become more frequent with climate change, might potentially threaten the perpetuity of evergreen-dominated broad-leaved forests in this subtropical region in the long term. These results underscore the importance of long-term monitoring that is indispensible to elucidate causal links between forest dynamics and climatic perturbations.; Extreme climatic events can trigger gradual or abrupt shifts in forest ecosystems via the reduction or elimination of foundation species. However, the impacts of these events on foundation species' demography and forest dynamics remain poorly understood. Here we quantified dynamics for both evergreen and deciduous broad-leaved species groups, utilizing a monitoring permanent plot in a subtropical montane mixed forest in central China from 2001 to 2010 with particular relevance to the anomalous 2008 ice storm episode. We found that both species groups showed limited floristic alterations over the study period. For each species group, size distribution of dead individuals approximated a roughly irregular and flat shape prior to the ice storm and resembled an inverse J-shaped distribution after the ice storm. Furthermore, patterns of mortality and recruitment displayed disequilibrium behaviors with mortality exceeding recruitment for both species groups following the ice storm. Deciduous broad-leaved species group accelerated overall diameter growth, but the ice storm reduced evergreen small-sized diameter growth. We concluded that evergreen broad-leaved species were more susceptible to ice storms than deciduous broad-leaved species, and ice storm events, which may become more frequent with climate change, might potentially threaten the perpetuity of evergreen-dominated broad-leaved forests in this subtropical region in the long term. These results underscore the importance of long-term monitoring that is indispensible to elucidate causal links between forest dynamics and climatic perturbations.
关键词	Diameter Growth Rate Frost Damage Leaf Habit Recruitment And Mortality The Extreme Climatic Event
WOS标题词	Science & Technology ; Life Sciences & Biomedicine
关键词[WOS]	NORTHERN HARDWOOD FOREST ; OLD-GROWTH FOREST ; CLIMATE-CHANGE ; NEOTROPICAL FOREST ; SOUTHERN CHINA ; MORTALITY ; DAMAGE ; SNOW ; DISTURBANCE ; DROUGHT
收录类别	SCI
语种	英语
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Ecology
WOS记录号	WOS:000352560000011
引用统计	被引频次：24[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://210.75.249.4/handle/363003/5570
专题	中国科学院西北高原生物研究所
作者单位	1.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Adm Bur Shennongjia Natl Nat Reserve, Shennongjia 442421, Hubei, Peoples R China 4.Chinese Acad Sci, Northwest Inst Plateau Biol, Xining 810008, Peoples R China
推荐引用方式 GB/T 7714	Ge, Jielin,Xiong, Gaoming,Wang, Zhixian,et al. Altered dynamics of broad-leaved tree species in a Chinese subtropical montane mixed forest: the role of an anomalous extreme 2008 ice storm episode[J]. ECOLOGY AND EVOLUTION,2015,5(7):1484-1493.
APA	Ge, Jielin.,Xiong, Gaoming.,Wang, Zhixian.,Zhang, Mi.,Zhao, Changming.,...&Xie, Zongqiang.(2015).Altered dynamics of broad-leaved tree species in a Chinese subtropical montane mixed forest: the role of an anomalous extreme 2008 ice storm episode.ECOLOGY AND EVOLUTION,5(7),1484-1493.
MLA	Ge, Jielin,et al."Altered dynamics of broad-leaved tree species in a Chinese subtropical montane mixed forest: the role of an anomalous extreme 2008 ice storm episode".ECOLOGY AND EVOLUTION 5.7(2015):1484-1493.

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