The sweet side of global change-dynamic responses of non-structural carbohydrates to drought, elevated CO2 and nitrogen fertilization in tree species

doi:10.1093/treephys/tpy059

	The sweet side of global change-dynamic responses of non-structural carbohydrates to drought, elevated CO2 and nitrogen fertilization in tree species
	Li, Weibin 1; Hartmann, Henrik 2; Adams, Henry D.3; Zhang, Hongxia 4,5; Jin, Changjie 4; Zhao, Chuanyan 1; Guan, Dexin 4; Wang, Anzhi 4; Yuan, Fenghui 4; Wu, Jiabing 4
刊名	TREE PHYSIOLOGY
	2018-11-01
卷号	38 期号:11 页码:1706-1723
关键词	above-ground woody biomass foliage global change meta-analysis non-structural carbohydrates roots
ISSN号	0829-318X
DOI	10.1093/treephys/tpy059
英文摘要	Non-structural carbohydrates (NSC) play a central role in plant functioning as energy carriers and building blocks for primary and secondary metabolism. Many studies have investigated how environmental and anthropogenic changes, like increasingly frequent and severe drought episodes, elevated CO2 and atmospheric nitrogen (N) deposition, influence NSC concentrations in individual trees. However, this wealth of data has not been analyzed yet to identify general trends using a common statistical framework. A thorough understanding of tree responses to global change is required for making realistic predictions of vegetation dynamics. Here we compiled data from 57 experimental studies on 71 tree species and conducted a meta-analysis to evaluate general responses of stored soluble sugars, starch and total NSC (soluble sugars+starch) concentrations in different tree organs (foliage, above-ground wood and roots) to drought, elevated CO2 and N deposition. We found that drought significantly decreased total NSC in roots (-17.3%), but not in foliage and above-ground woody tissues (bole, branch, stem and/or twig). Elevated CO2 significantly increased total NSC in foliage (+26.2%) and roots (+12.8%), but not in above-ground wood. By contrast, total NSC significantly decreased in roots (-17.9%), increased in above-ground wood (+6.1%), but was unaffected in foliage from N fertilization. In addition, the response of NSC to three global change drivers was strongly affected by tree taxonomic type, leaf habit, tree age and treatment intensity. Our results pave the way for a better understanding of general tree function responses to drought, elevated CO2 and N fertilization. The existing data also reveal that more long-term studies on mature trees that allow testing interactions between these factors are urgently needed to provide a basis for forecasting tree responses to environmental change at the global scale.
资助项目	Fundamental Research Funds for the Central Universities[lzujbky-2018-3] ; National Natural Science Foundation of China[31400541] ; National Natural Science Foundation of China[41675112] ; National Natural Science Foundation of China[41375119] ; National Natural Science Foundation of China[41571051] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB15010301]
WOS研究方向	Forestry
语种	英语
出版者	OXFORD UNIV PRESS
WOS记录号	WOS:000452458300009
内容类型	期刊论文
源URL	[http://210.72.129.5/handle/321005/123799]
专题	中国科学院沈阳应用生态研究所
通讯作者	Li, Weibin; Wu, Jiabing
作者单位	1.Lanzhou Univ, Coll Pastoral Agr Sci & Technol, Minist Agr & Rural Affairs, State Key Lab Grassland & Agroecosyst,Key Lab Gra, Lanzhou 730020, Gansu, Peoples R China 2.Max Planck Inst Biogeochem, Hans Knoll Str 10, D-07745 Jena, Germany 3.Oklahoma State Univ, Dept Plant Biol Ecol & Evolut, Stillwater, OK 74078 USA 4.Chinese Acad Sci, Inst Appl Ecol, Key Lab Forest Ecol & Management, Shenyang 110016, Liaoning, Peoples R China 5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Li, Weibin,Hartmann, Henrik,Adams, Henry D.,et al. The sweet side of global change-dynamic responses of non-structural carbohydrates to drought, elevated CO2 and nitrogen fertilization in tree species[J]. TREE PHYSIOLOGY,2018,38(11):1706-1723.
APA	Li, Weibin.,Hartmann, Henrik.,Adams, Henry D..,Zhang, Hongxia.,Jin, Changjie.,...&Wu, Jiabing.(2018).The sweet side of global change-dynamic responses of non-structural carbohydrates to drought, elevated CO2 and nitrogen fertilization in tree species.TREE PHYSIOLOGY,38(11),1706-1723.
MLA	Li, Weibin,et al."The sweet side of global change-dynamic responses of non-structural carbohydrates to drought, elevated CO2 and nitrogen fertilization in tree species".TREE PHYSIOLOGY 38.11(2018):1706-1723.