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Impact of extra nitrogen on ecological stoichiometry of alpine grasslands on Tibetan Plateau: meta-analysis

文献类型：期刊论文

作者Zhang, Hao Rui1,2; Sun, Wei1; Li, Shao Wei1; Han, Fu Song1,2; Yu, Cheng Qun1; Zhang, Xian Zhou1; Wang, Jing Sheng1; He, Yong Tao1; Zhong, Zhi Ming1
刊名POLISH JOURNAL OF ECOLOGY
出版日期2018
卷号66期号:4页码:315-324
关键词C:N ratio C:P ratio N:P ratio eutrophication nitrogen deposition alpine region
ISSN号1505-2249
DOI10.3161/15052249PJE2018.66.4.001
通讯作者Zhang, Xian Zhou(zhangxz@igsnrr.ac.cn) ; Wang, Jing Sheng(wangjsh@igsnrr.ac.cn)
英文摘要The general impact of extra nitrogen on ecological stoichiometry was examined in alpine grasslands on the Tibetan Plateau. Extra nitrogen increased the ratio of nitrogen to phosphorus (N:P ratio) in leaves and aboveground parts of plants by 43.4% and 32.7%, respectively. In contrast, extra nitrogen reduced the ratio of carbon to nitrogen (C:N ratio) in leaves by 30.6%. Extra nitrogen decreased soil C:N ratio by 9.1% in alpine meadows, but increased soil C:N ratio by 3.4% in alpine steppes. Extra urea had a stronger positive impact on aboveground vegetation N:P ratio than did extra ammonium nitrate. Extra urea rather than ammonium nitrate decreased aboveground vegetation C:N ratio and soil C:N ratio. The impact of extra nitrogen on aboveground vegetation N:P ratio was positively correlated with latitude, mean annual temperature and precipitation, nitrogen application rate and accumulated amount, but negatively correlated with elevation, duration and aboveground vegetation N:P ratio of the control plots. The impact of extra nitrogen on leaves N:P ratio was positively correlated with nitrogen application rate and accumulated amount. The impact of extra nitrogen on leaves C:N ratio was positively correlated with latitude, but negatively correlated with mean annual temperature and precipitation, nitrogen application rate, accumulated amount, duration and leaves C:N ratio of the control plots. Therefore, nitrogen enrichment caused by human activities will most likely alter element balance and alpine plants from nitrogen limitation to phosphorus limitation. This effect may weaken with time, and increase with climatic warming, increased precipitation and nitrogen input rate.
WOS关键词GHG FLUX ; MEADOW ; FERTILIZATION ; DEPOSITION ; CARBON ; CO2
资助项目National Key Research Projects of China[2016YFC0502006] ; National Key Research Projects of China[2017YFA0604801] ; National Natural Science Foundation of China[31600432] ; National Natural Science Foundation of China[41571042] ; Tibet Science and Technology Major Projects of Pratacultural Industry
WOS研究方向Environmental Sciences & Ecology
语种英语
WOS记录号WOS:000459824900001
出版者POLISH ACAD SCIENCES INST ECOLOGY
资助机构National Key Research Projects of China ; National Natural Science Foundation of China ; Tibet Science and Technology Major Projects of Pratacultural Industry
源URL[http://ir.igsnrr.ac.cn/handle/311030/49489]  
专题中国科学院地理科学与资源研究所
通讯作者Zhang, Xian Zhou; Wang, Jing Sheng
作者单位1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modelling, Lhasa Plateau Ecosyst Res Stn, Beijing 100101, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Zhang, Hao Rui,Sun, Wei,Li, Shao Wei,et al. Impact of extra nitrogen on ecological stoichiometry of alpine grasslands on Tibetan Plateau: meta-analysis[J]. POLISH JOURNAL OF ECOLOGY,2018,66(4):315-324.
APA Zhang, Hao Rui.,Sun, Wei.,Li, Shao Wei.,Han, Fu Song.,Yu, Cheng Qun.,...&Zhong, Zhi Ming.(2018).Impact of extra nitrogen on ecological stoichiometry of alpine grasslands on Tibetan Plateau: meta-analysis.POLISH JOURNAL OF ECOLOGY,66(4),315-324.
MLA Zhang, Hao Rui,et al."Impact of extra nitrogen on ecological stoichiometry of alpine grasslands on Tibetan Plateau: meta-analysis".POLISH JOURNAL OF ECOLOGY 66.4(2018):315-324.

入库方式： OAI收割

来源：地理科学与资源研究所

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