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| Diverse responses of belowground internal nitrogen cycling to increasing aridity | |
Kou, Dan1; Peng, Yunfeng; Wang, Guanqin1; Ding, Jinzhi1; Chen, Yongliang; Yang, Guibiao1; Fang, Kai1; Liu, Li1; Zhang, Beibei; Mueller, Christoph2,3; Zhang, Jinbo4; Yang, Yuanhe1
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| 2018 | |
| 发表期刊 | SOIL BIOLOGY & BIOCHEMISTRY
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| ISSN | 0038-0717 |
| 卷号 | 116页码:189-192 |
| 摘要 | Belowground microbial nitrogen (N) processes play key roles in regulating terrestrial ecosystem services such as vegetation production, however, our understanding of their responses to climate change remains limited. We determined patterns and controls of five gross N transformation processes along a typical aridity gradient on the Tibetan Plateau. Potential gross N transformation rates responded diversely to the changing aridity. Both mineralization (M-N, average rate: 2.87 mg N kg(-1) soil d(-1)) and ammonium inunobilization (I-NH4, 3.35 mg N kg(-1) soil d(-1)) declined as aridity increased. Autotrophic nitrification (O-NH4, 1.72 mg N kg(-1) soil d(-1)) exhibited a bell-shaped pattern along the gradient, with an optimum aridity of 0.53 (1- aridity index (AI)). By contrast, rates of nitrate immobilization (I-NO3, 0.46 mg N kg(-1) soil d(-1)) and dissimilatory nitrate reduction to ammonium (DNRA, 0.10 mg N kg(-1) soil d(-1)) did not respond to the changing aridity. These results suggest that predicted increases in aridity will exert different effects on various soil internal N cycling processes, and thus potentially have profotmd impact on structure and function of dryland ecosystems. |
| 关键词 | Ammonia oxidation archaea Drylands Mineralization Microbial inunobilization Nitrification Nitrogen cycle |
| 学科领域 | Soil Science |
| DOI | 10.1016/j.soilbio.2017.10.010 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS关键词 | RETENTION ; DRYLANDS ; FOREST |
| WOS记录号 | WOS:000419417900022 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 文献子类 | Article |
| 出版地 | OXFORD |
| EISSN | 1879-3428 |
| 资助机构 | National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31670482, 41371213] ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences [QYZDB-SSW-SMC049] ; Chinese Academy of Sciences-Pelting University Pioneer Cooperation Team ; Thousand Young Talents ProgramChinese Academy of Sciences |
| 作者邮箱 | zhangjinbo@njnu.edu.cn ; yhyang@ibcas.ac.cn |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.ibcas.ac.cn/handle/2S10CLM1/20639 |
| 专题 | 植被与环境变化国家重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Justus Liebig Univ Giessen, Dept Plant Ecol, Heinrich Buff Ring 26, D-35392 Giessen, Germany 4.Univ Coll Dublin, Sch Biol & Environm Sci, Dublin, Ireland 5.Nanjing Normal Univ, Sch Geog Sci, Nanjing 210047, Jiangsu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Kou, Dan,Peng, Yunfeng,Wang, Guanqin,et al. Diverse responses of belowground internal nitrogen cycling to increasing aridity[J]. SOIL BIOLOGY & BIOCHEMISTRY,2018,116:189-192. |
| APA | Kou, Dan.,Peng, Yunfeng.,Wang, Guanqin.,Ding, Jinzhi.,Chen, Yongliang.,...&Yang, Yuanhe.(2018).Diverse responses of belowground internal nitrogen cycling to increasing aridity.SOIL BIOLOGY & BIOCHEMISTRY,116,189-192. |
| MLA | Kou, Dan,et al."Diverse responses of belowground internal nitrogen cycling to increasing aridity".SOIL BIOLOGY & BIOCHEMISTRY 116(2018):189-192. |
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| j.soilbio.2017.10.01（507KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 浏览 请求全文 | |
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