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Plant organic N uptake maintains species dominance under long-term warming

文献类型：期刊论文

作者Jiang, Lili1; Wang, Shiping1,2; Zhe, Pang3; Xu, Xingliang4; Kardol, Paul5; Li, Yaoming1; Zhang, Lirong1; Wang, Yanfen3; Lei, Zhong6; Lan, Zhichun7
刊名PLANT AND SOIL
出版日期2018-12-01
卷号433期号:1-2页码:243-255
关键词Plant N uptake Alpine grassland The Tibet plateau Plant species coexistence
ISSN号0032-079X
DOI10.1007/s11104-018-3836-x
通讯作者Jiang, Lili(lljiang@itpcas.ac.cn) ; Wang, Yanfen(yfwang@ucas.ac.cn)
英文摘要Background and aimsThere is ample experimental evidence for shifts in plant community composition under climate warming. To date, however, the underlying mechanisms driving these compositional shifts remain poorly understood. Methods The amount and form of nitrogen (N) available to plants are among the primary factors limiting productivity and plant coexistence in terrestrial ecosystems. We conducted a short-term N-15 tracer experiment in a ten-year warming and grazing experiment in an alpine grassland to investigate the effects of warming and grazing on plant uptake of NO3--N, NH4+-N, and glycine-N. Four dominant plant species (Kobresia humilis, Potentilla anseria, Elymus nutans, Poa annua) were selected. Results We found that 10-years of warming decreased plant uptake of inorganic N by up to 80% in all species. In contrast, warming increased the uptake of organic N in K. humilis, P. anseria, and E. nutans but not in P. annua. Results showed that plant relative biomass increased hyperbolically with the ratio of the plant species total uptake of available N and plant community uptake of available N. And a significant positive correlation between plant species uptake of soil glycine-N and the uptake of total available N. Conclusions The stable relative biomass of plant species is largely dependent on organic N uptake by plants. We conclude that plant organic N uptake maintains species dominance under long-term warming.
WOS关键词ALPINE MEADOW ECOSYSTEM ; RELATIVE UPTAKE RATES ; RECENT CLIMATE-CHANGE ; TIBETAN PLATEAU ; ECOLOGICAL RESPONSES ; NITROGEN LIMITATION ; SOIL-NITROGEN ; AMINO-ACIDS ; GRASSLAND ; AMMONIUM
资助项目Strategic Priority Research Program of Chinese Academy of Sciences[XDA20050104] ; National Key Research and Development Program of China[2016YFC0501802] ; National Science Foundation of China[31672474] ; National Science Foundation of China[41731175] ; National Science Foundation of China[31872994] ; National Science Foundation of China[31770524] ; Key program of Tibet Department of Science and Technology ; NRN-LCEE Ser Cymru Climate-Smart Grasslands Project
WOS研究方向Agriculture ; Plant Sciences
语种英语
WOS记录号WOS:000449754900018
出版者SPRINGER
资助机构Strategic Priority Research Program of Chinese Academy of Sciences ; National Key Research and Development Program of China ; National Science Foundation of China ; Key program of Tibet Department of Science and Technology ; NRN-LCEE Ser Cymru Climate-Smart Grasslands Project
源URL[http://ir.igsnrr.ac.cn/handle/311030/52510]  
专题中国科学院地理科学与资源研究所
通讯作者Jiang, Lili; Wang, Yanfen
作者单位1.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Alpine Ecol, Beijing 100101, Peoples R China
2.Chinese Acad Sci, CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China
3.Univ Chinese Acad Sci, Coll Life Sci, Beijing 100049, Peoples R China
4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modelling, Beijing 100101, Peoples R China
5.Swedish Univ Agr Sci, Dept Forest Ecol & Management, S-90183 Umea, Sweden
6.Univ China Australia Ctr Sustainable Urban Dev, Sch Environm Sci & Engn, Tianjin, Peoples R China
7.Nanchang Univ, Inst Life Sci, Ctr Watershed Ecol, Nanchang 330031, Jiangxi, Peoples R China
8.Bangor Univ, Sch Environm Nat Resources & Geog, Bangor LL57 2UW, Gwynedd, Wales
9.Chinese Acad Sci, Northwest Inst Plateau Biol, Key Lab Adaptat & Evolut Plateau Biota, Xining, Qinghai, Peoples R China
10.Univ Western Australia, Fac Law, Sch Earth & Environm, AUS, Perth, WA, Australia
推荐引用方式
GB/T 7714		 Jiang, Lili,Wang, Shiping,Zhe, Pang,et al. Plant organic N uptake maintains species dominance under long-term warming[J]. PLANT AND SOIL,2018,433(1-2):243-255.
APA Jiang, Lili.,Wang, Shiping.,Zhe, Pang.,Xu, Xingliang.,Kardol, Paul.,...&Jones, Davey L..(2018).Plant organic N uptake maintains species dominance under long-term warming.PLANT AND SOIL,433(1-2),243-255.
MLA Jiang, Lili,et al."Plant organic N uptake maintains species dominance under long-term warming".PLANT AND SOIL 433.1-2(2018):243-255.

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来源：地理科学与资源研究所

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