Warming decreased and grazing increased plant uptake of amino acids in an alpine meadow
文献类型：期刊论文
| 作者 | Ma, Shuang1; Zhu, Xiaoxue2; Zhang, Jing1; Zhang, Lirong3; Che, Rongxiao1; Wang, Fang1; Liu, Hanke1; Niu, Haishan3,4; Wang, Shiping5,6; Cui, Xiaoyong1,4 |
| 刊名 | ecology and evolution
 |
| 出版日期 | 2015-09-01 |
| 卷号 | 5期号:18页码:3995-4005 |
| 关键词 | C-13-N-15-glycine amino acid uptake grazing plant community Qinghai-Tibetan Plateau warming |
| 中文摘要 | organic nitrogen (n) uptake by plants has been recognized as a significant component of terrestrial n cycle. several studies indicated that plants have the ability to switch their preference between inorganic and organic forms of n in diverse environments; however, research on plant community response in organic nitrogen uptake to warming and grazing is scarce. here, we demonstrated that organic n uptake by an alpine plant community decreased under warming with c-13-n-15-enriched glycine addition method. after 6years of treatment, warming decreased plant organic n uptake by 37% as compared to control treatment. under the condition of grazing, warming reduced plant organic n uptake by 44%. grazing alone significantly increased organic n absorption by 15%, whereas under warming condition grazing did not affect organic n uptake by the kobresia humilis community on tibetan plateau. besides, soil no3-n content explained more than 70% of the variability observed in glycine uptake, and c:n ratio in soil dissolved organic matter remarkably increased under warming treatment. these results suggested warming promoted soil microbial activity and dissolved organic n mineralization. grazing stimulated organic n uptake by plants, which counteracted the effect of warming. |
| 英文摘要 | organic nitrogen (n) uptake by plants has been recognized as a significant component of terrestrial n cycle. several studies indicated that plants have the ability to switch their preference between inorganic and organic forms of n in diverse environments; however, research on plant community response in organic nitrogen uptake to warming and grazing is scarce. here, we demonstrated that organic n uptake by an alpine plant community decreased under warming with c-13-n-15-enriched glycine addition method. after 6years of treatment, warming decreased plant organic n uptake by 37% as compared to control treatment. under the condition of grazing, warming reduced plant organic n uptake by 44%. grazing alone significantly increased organic n absorption by 15%, whereas under warming condition grazing did not affect organic n uptake by the kobresia humilis community on tibetan plateau. besides, soil no3-n content explained more than 70% of the variability observed in glycine uptake, and c:n ratio in soil dissolved organic matter remarkably increased under warming treatment. these results suggested warming promoted soil microbial activity and dissolved organic n mineralization. grazing stimulated organic n uptake by plants, which counteracted the effect of warming. |
| WOS标题词 | science & technology ; life sciences & biomedicine |
| 类目[WOS] | ecology |
| 研究领域[WOS] | environmental sciences & ecology |
| 关键词[WOS] | soil microbial biomass ; organic nitrogen ; tibetan plateau ; carbon availability ; inorganic nitrogen ; extraction method ; n availability ; boreal forests ; arctic tundra ; root uptake |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000362090700012 |
| 源URL | [http://ir.nwipb.ac.cn/handle/363003/5512]  |
| 专题 | 西北高原生物研究所_中国科学院西北高原生物研究所 |
| 作者单位 | 1.Univ Chinese Acad Sci, Dept Life Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Northwest Inst Plateau Biol, Key Lab Adaptat & Evolut Plateau Biota, Xining 810008, Peoples R China 3.Univ Chinese Acad Sci, Dept Resource & Environm, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Huairou Ecol & Environm Observ, Beijing 101408, Peoples R China 5.Chinese Acad Sci, Inst Tibetan Plateau Res, Lab Alpine Ecol & Biodivers, Beijing 100101, Peoples R China 6.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ma, Shuang,Zhu, Xiaoxue,Zhang, Jing,et al. Warming decreased and grazing increased plant uptake of amino acids in an alpine meadow[J]. ecology and evolution,2015,5(18):3995-4005. |
| APA | Ma, Shuang.,Zhu, Xiaoxue.,Zhang, Jing.,Zhang, Lirong.,Che, Rongxiao.,...&Cui, Xiaoyong.(2015).Warming decreased and grazing increased plant uptake of amino acids in an alpine meadow.ecology and evolution,5(18),3995-4005. |
| MLA | Ma, Shuang,et al."Warming decreased and grazing increased plant uptake of amino acids in an alpine meadow".ecology and evolution 5.18(2015):3995-4005. |
入库方式： OAI收割
来源：西北高原生物研究所
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