Intensified plant N and C pool with more available nitrogen under experimental warming in an alpine meadow ecosystem
文献类型：期刊论文
| 作者 | Peng, Fei1; Xue, Xian1; You, Quangang1,2; Xu, Manhou3; Chen, Xiang1,2; Guo, Jian1; Wang, Tao1 |
| 刊名 | ECOLOGY AND EVOLUTION
 |
| 出版日期 | 2016-12-01 |
| 卷号 | 6期号:23页码:8546-8555 |
| ISSN号 | 2045-7758 |
| 关键词 | alpine meadow incubation infrared heater microbial biomass mineralization |
| DOI | 10.1002/ece3.2583 |
| 通讯作者 | Xue, Xian(xianxue@lzb.ac.cn) |
| 英文摘要 | Nitrogen (N) availability is projected to increase in a warming climate. But whether the more available N is immobilized by microbes (thus stimulates soil carbon (C) decomposition), or is absorbed by plants (thus intensifies C uptake) remains unknown in the alpine meadow ecosystem. Infrared heaters were used to simulate climate warming with a paired experimental design. Soil ammonification, nitrification, and net mineralization were obtained by in situ incubation in a permafrost region of the Qinghai-Tibet Plateau (QTP). Available N significantly increased due to the stimulation of net nitrification and mineralization in 0-30 cm soil layer. Microbes immobilized N in the end of growing season in both warming and control plots. The magnitude of immobilized N was lower in the warming plots. The root N concentration significantly reduced, but root N pool intensified due to the significant increase in root biomass in the warming treatment. Our results suggest that a warming-induced increase in biomass is the major N sink and will continue to stimulate plant growth until plant N saturation, which could sustain the positive warming effect on ecosystem productivity. |
| 收录类别 | SCI |
| WOS关键词 | QINGHAI-TIBET PLATEAU ; CLIMATE-CHANGE ; ARCTIC PLANTS ; MICROBIAL BIOMASS ; SOIL ; CARBON ; RESPONSES ; MINERALIZATION ; TEMPERATURE ; NUTRIENT |
| WOS研究方向 | Environmental Sciences & Ecology ; Evolutionary Biology |
| WOS类目 | Ecology ; Evolutionary Biology |
| 语种 | 英语 |
| 出版者 | WILEY-BLACKWELL |
| WOS记录号 | WOS:000392062100020 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2557483 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Xue, Xian |
| 作者单位 | 1.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resource, Key Lab Desert & Desertificat, Beijing, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China 3.Taiyuan Normal Univ, Taiyuan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Peng, Fei,Xue, Xian,You, Quangang,et al. Intensified plant N and C pool with more available nitrogen under experimental warming in an alpine meadow ecosystem[J]. ECOLOGY AND EVOLUTION,2016,6(23):8546-8555. |
| APA | Peng, Fei.,Xue, Xian.,You, Quangang.,Xu, Manhou.,Chen, Xiang.,...&Wang, Tao.(2016).Intensified plant N and C pool with more available nitrogen under experimental warming in an alpine meadow ecosystem.ECOLOGY AND EVOLUTION,6(23),8546-8555. |
| MLA | Peng, Fei,et al."Intensified plant N and C pool with more available nitrogen under experimental warming in an alpine meadow ecosystem".ECOLOGY AND EVOLUTION 6.23(2016):8546-8555. |
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来源：寒区旱区环境与工程研究所
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