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Geographical and climatic gradients of evergreen versus deciduous broad-leaved tree species in subtropical China: Implications for the definition of the mixed forest

文献类型：期刊论文

作者Ge, Jielin; Xie, Zongqiang
刊名ECOLOGY AND EVOLUTION
出版日期2017
卷号7期号:11页码:3636-3644
关键词deciduousness extreme cold temperature forest delimitation leaf type mixed forest transitional zone
ISSN号2045-7758
DOI10.1371/journal.pone.0170286
文献子类Article
英文摘要Understanding climatic influences on the proportion of evergreen versus deciduous broad-leaved tree species in forests is of crucial importance when predicting the impact of climate change on broad-leaved forests. Here, we quantified the geographical distribution of evergreen versus deciduous broad-leaved tree species in subtropical China. The Relative Importance Value index (RIV) was used to examine regional patterns in tree species dominance and was related to three key climatic variables: mean annual temperature (MAT), minimum temperature of the coldest month (MinT), and mean annual precipitation (MAP). We found the RIV of evergreen species to decrease with latitude at a lapse rate of 10% per degree between 23.5 and 25 degrees N, 1% per degree at 25-29.1 degrees N, and 15% per degree at 29.1-34 degrees N. The RIV of evergreen species increased with: MinT at a lapse rate of 10% per degrees C between -4.5 and 2.5 degrees C and 2% per degrees C at 2.5-10.5 degrees C; MAP at a lapse rate of 10% per 100mm between 900 and 1,600mm and 4% per 100mm between 1,600 and 2,250mm. All selected climatic variables cumulatively explained 71% of the geographical variation in dominance of evergreen and deciduous broad-leaved tree species and the climatic variables, ranked in order of decreasing effects were as follows: MinT>MAP>MAT. We further proposed that the latitudinal limit of evergreen and deciduous broad-leaved mixed forests was 29.1-32 degrees N, corresponding with MAT of 11-18.1 degrees C, MinT of -2.5 to 2.51 degrees C, and MAP of 1,000-1,630mm. This study is the first quantitative assessment of climatic correlates with the evergreenness and deciduousness of broad-leaved forests in subtropical China and underscores that extreme cold temperature is the most important climatic determinant of evergreen and deciduous broad-leaved tree species' distributions, a finding that confirms earlier qualitative studies. Our findings also offer new insight into the definition and distribution of the mixed forest and an accurate assessment of vulnerability of mixed forests to future climate change.
学科主题Science & Technology - Other Topics
出版地HOBOKEN
WOS关键词TRADE-OFF ; PATTERNS ; TEMPERATURE ; PRECIPITATION ; DETERMINANTS ; CONSERVATION ; CANOPIES ; LIMITS ; MODEL ; COLD
语种英语
WOS记录号WOS:000394231800009
出版者WILEY
资助机构National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31600360] ; National Basic Research Program of ChinaNational Basic Research Program of China [2010CB951301] ; Special Research Program for Public-welfare Environmental Protection Projects of China [201309039] ; Chinese Academy of SciencesChinese Academy of Sciences [KFJ-SW-STS-167]
源URL[http://ir.ibcas.ac.cn/handle/2S10CLM1/22137]  
专题植被与环境变化国家重点实验室
作者单位Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing, Peoples R China
推荐引用方式
GB/T 7714		 Ge, Jielin,Xie, Zongqiang. Geographical and climatic gradients of evergreen versus deciduous broad-leaved tree species in subtropical China: Implications for the definition of the mixed forest[J]. ECOLOGY AND EVOLUTION,2017,7(11):3636-3644.
APA Ge, Jielin,&Xie, Zongqiang.(2017).Geographical and climatic gradients of evergreen versus deciduous broad-leaved tree species in subtropical China: Implications for the definition of the mixed forest.ECOLOGY AND EVOLUTION,7(11),3636-3644.
MLA Ge, Jielin,et al."Geographical and climatic gradients of evergreen versus deciduous broad-leaved tree species in subtropical China: Implications for the definition of the mixed forest".ECOLOGY AND EVOLUTION 7.11(2017):3636-3644.

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来源：植物研究所

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