Nitrogen addition has a stronger effect on stoichiometries of non-structural carbohydrates, nitrogen and phosphorus in Bothriochloa ischaemum than elevated CO2

doi:10.1007/s10725-017-0298-8

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	Nitrogen addition has a stronger effect on stoichiometries of non-structural carbohydrates, nitrogen and phosphorus in Bothriochloa ischaemum than elevated CO2
	Li, Peng 1; Xue, S (reprint author), Northwest A&F Univ, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling, Peoples R China.; Xiao, Lie 1,2; Liu, Guobin 2; Xue, Sha 2
刊名	PLANT GROWTH REGULATION
	2017
卷号	83 期号:2 页码:325-334
关键词	Elevated Co2 Loess Plateau n Addition Nsc Stoichiometry Temperate Grass
ISSN号	0167-6903
DOI	10.1007/s10725-017-0298-8
文献子类	Article
英文摘要	The nutrient concentrations and carbon:nitrogen:phosphorus stoichiometries of plants have been greatly altered by elevated CO2 concentrations and nitrogen (N) deposition. Studies of these changes, however, are mostly limited to tropical and subtropical forests. In this study, a C-4 herbaceous grass (Bothriochloa ischaemum) was grown in a pot experiment at two CO2 concentrations (400 and 800 mu mol mol(-1)) and three levels of N fertilization (0, 2.5 and 5 g N m(-2) y(-1)) in a full factorial design. Plant biomass and the concentrations of non-structural carbohydrates (NSCs), N and phosphorus (P) in the shoots and roots were determined. The elevated CO2 concentration and N addition significantly increased total biomass, starch and NSC concentrations and root:shoot, starch:N, NSC:N, starch:P and NSC:P ratios in whole plants and roots. N addition alone decreased the soluble sugar (SS) concentration in whole plants and increased N concentration and decreased P concentration in whole plants and roots and thus decreased the SS:N ratio and increased the SS:P and N:P ratios. Our results suggested that SS, N and P concentrations and their stoichiometries responded more strongly to N addition than elevated CO2 concentration. Plant growth in this region suffers more from P than N limitation, and N addition would exacerbate the P limitation on plant growth.
学科主题	Plant Sciences
URL标识	查看原文
出版地	DORDRECHT
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000413303400014
资助机构	Western Young Scholars of the Chinese Academy of Sciences [XAB2015A05]; National Natural Science Foundation of China [41371510, 41371508, 41471438, 41330858] ; Western Young Scholars of the Chinese Academy of Sciences [XAB2015A05]; National Natural Science Foundation of China [41371510, 41371508, 41471438, 41330858] ; Western Young Scholars of the Chinese Academy of Sciences [XAB2015A05]; National Natural Science Foundation of China [41371510, 41371508, 41471438, 41330858] ; Western Young Scholars of the Chinese Academy of Sciences [XAB2015A05]; National Natural Science Foundation of China [41371510, 41371508, 41471438, 41330858]
内容类型	期刊论文
源URL	[http://ir.iswc.ac.cn/handle/361005/7899]
专题	水保所科研产出--SCI_2017--SCI
通讯作者	Xue, S (reprint author), Northwest A&F Univ, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling, Peoples R China.
作者单位	1.Xian Univ Technol, State Key Lab Base Ecohydraul Engn, Arid Area, Xian, Shaanxi, Peoples R China 2.Northwest A&F Univ, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling, Peoples R China
推荐引用方式 GB/T 7714	Li, Peng,Xue, S ,Xiao, Lie,et al. Nitrogen addition has a stronger effect on stoichiometries of non-structural carbohydrates, nitrogen and phosphorus in Bothriochloa ischaemum than elevated CO2[J]. PLANT GROWTH REGULATION,2017,83(2):325-334.
APA	Li, Peng,Xue, S ,Xiao, Lie,Liu, Guobin,&Xue, Sha.(2017).Nitrogen addition has a stronger effect on stoichiometries of non-structural carbohydrates, nitrogen and phosphorus in Bothriochloa ischaemum than elevated CO2.PLANT GROWTH REGULATION,83(2),325-334.
MLA	Li, Peng,et al."Nitrogen addition has a stronger effect on stoichiometries of non-structural carbohydrates, nitrogen and phosphorus in Bothriochloa ischaemum than elevated CO2".PLANT GROWTH REGULATION 83.2(2017):325-334.