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The impacts of nitrogen deposition on community N:P stoichiometry do not depend on phosphorus availability in a temperate meadow steppe

文献类型：期刊论文

作者Wang, Hong-Yi; Wang, Zheng-Wen; Ding, Rui5; Hou, Shuang-Li; Yang, Guo-Jiao; Lu, Xiao-Tao; Han, Xing-Guo
刊名ENVIRONMENTAL POLLUTION
出版日期2018
卷号242页码:82-89
ISSN号0269-7491
关键词Aboveground biomass Community composition Ecological stoichiometry Hulunber grassland Intraspecific variation Nitrogen deposition Phosphorus addition Plant functional traits
DOI10.1016/j.envpol.2018.06.088
文献子类Article
英文摘要Nitrogen (N) enrichment has great consequences on several fundamental ecological processes through its impacts on plant nutrition traits (i.e. nutrient concentration and stoichiometric ratios); however, the extent to which the effects of N enrichment depend on phosphorus (P) availability are less well understood. While there is mounting evidence for the species-specific responses of plant nutrition traits to nutrient enrichment, we know little about the changes at the community-level. Here, we measured community-level biomass weighted (CWM) and non-weighted (CM) plant N and P concentrations and N:P ratio in a temperate meadow steppe after four years factorial N and P addition, with biomass and nutrition traits of each species in each plot being recorded. Nitrogen addition significantly increased community-level N concentration, decreased P concentration, and enhanced community N:P ratio. Phosphorus addition had no impacts on community-level N concentration, significantly increased P concentration, and reduced community N:P ratio. The impacts of N addition on community nutrition traits were not dependent on P addition and the community-level nutrition trait responses to N and P additions were primarily driven by intraspecific trait variation (ITV) rather than by species turnover. Community-level nutrition traits in the temperate meadow steppe were sensitive to the projected N and P enrichment. While nutrient enrichment had substantially changed community composition, its impacts on community nutrition traits were driven by ITV. Nitrogen deposition would result in imbalance of N and P in plant community, as indicated by the substantial increase in community-level N:P, which was not affected by increased P availability. (C) 2018 Elsevier Ltd. All rights reserved.
学科主题Environmental Sciences
电子版国际标准刊号1873-6424
出版地OXFORD
WOS关键词PLANT STOICHIOMETRY ; INTRASPECIFIC VARIATION ; WATER ; PRODUCTIVITY ; BIODIVERSITY ; LIMITATION ; KNOWLEDGE ; RESPONSES ; PATTERNS ; INPUTS
语种英语
出版者ELSEVIER SCI LTD
WOS记录号WOS:000446150300009
资助机构National Basic Research Program of ChinaNational Basic Research Program of China [2016YFC0500602, 2015CB150802] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31570530, 31770503] ; Strategic Priority Research Program of the Chinese Academy of SciencesChinese Academy of Sciences [XDB15010404] ; Youth Innovation Promotion Association CAS [2014174]
源URL[http://ir.ibcas.ac.cn/handle/2S10CLM1/20438]  
专题植被与环境变化国家重点实验室
作者单位1.Hou, Shuang-Li
2.Heilongjiang Bayi Agr Univ, Daqing 163319, Peoples R China
3.Yang, Guo-Jiao
4.Chinese Acad Sci, Inst Appl Ecol, Erguna Forest Steppe Ecotone Res Stn, Shenyang 110016, Peoples R China
5.[Wang, Hong-Yi
6.Wang, Zheng-Wen
7.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China
8.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Hong-Yi,Wang, Zheng-Wen,Ding, Rui,et al. The impacts of nitrogen deposition on community N:P stoichiometry do not depend on phosphorus availability in a temperate meadow steppe[J]. ENVIRONMENTAL POLLUTION,2018,242:82-89.
APA Wang, Hong-Yi.,Wang, Zheng-Wen.,Ding, Rui.,Hou, Shuang-Li.,Yang, Guo-Jiao.,...&Han, Xing-Guo.(2018).The impacts of nitrogen deposition on community N:P stoichiometry do not depend on phosphorus availability in a temperate meadow steppe.ENVIRONMENTAL POLLUTION,242,82-89.
MLA Wang, Hong-Yi,et al."The impacts of nitrogen deposition on community N:P stoichiometry do not depend on phosphorus availability in a temperate meadow steppe".ENVIRONMENTAL POLLUTION 242(2018):82-89.

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来源：植物研究所

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