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| Microbial denitrification dominates nitrate losses from forest ecosystems | |
| Fang, Yunting; Koba, Keisuke; Makabe, Akiko; Takahashi, Chieko; Zhu, Weixing2; Hayashi, Takahiro; Hokari, Azusa A.; Urakawa, Rieko3; Bai, Edith; Houlton, Benjamin Z.; Xi, Dan; Zhang, Shasha; Matsushita, Kayo1; Tu, Ying; Liu, Dongwei; Zhu, Feifei; Wang, Zhenyu; Zhou, Guoyi5; Chen, Dexiang6; Makita, Tomoko1; Toda, Hiroto1; Liu, Xueyan1; Chen, Quansheng7; Zhang, Deqiang5; Li, Yide6; Yoh, Muneoki1 | |
| 2015 | |
| 发表期刊 | PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
 |
| ISSN | 0027-8424 |
| 卷号 | 112期号:5页码:1470-1474 |
| 摘要 | Denitrification removes fixed nitrogen (N) from the biosphere, thereby restricting the availability of this key limiting nutrient for terrestrial plant productivity. This microbially driven process has been exceedingly difficult to measure, however, given the large background of nitrogen gas (N-2) in the atmosphere and vexing scaling issues associated with heterogeneous soil systems. Here, we use natural abundance of N and oxygen isotopes in nitrate (NO3-) to examine dentrification rates across six forest sites in southern China and central Japan, which span temperate to tropical climates, as well as various stand ages and N deposition regimes. Our multiple stable isotope approach across soil to watershed scales shows that traditional techniques underestimate terrestrial denitrification fluxes by up to 98%, with annual losses of 5.6-30.1 kg of N per hectare via this gaseous pathway. These N export fluxes are up to sixfold higher than NO3- leaching, pointing to widespread dominance of denitrification in removing NO3- from forest ecosystems across a range of conditions. Further, we report that the loss of NO3- to denitrification decreased in comparison to leaching pathways in sites with the highest rates of anthropogenic N deposition. |
| 关键词 | denitrification nitrate isotopes nitrogen cycling forested watersheds |
| 学科领域 | Multidisciplinary Sciences |
| DOI | 10.1073/pnas.1416776112 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS关键词 | ATMOSPHERIC NITRATE ; TERRESTRIAL ECOSYSTEMS ; FRESH-WATER ; NITROGEN ; SYSTEM ; SOIL ; PERSPECTIVE ; LIMITATION ; DEPOSITION ; DELTA-O-17 |
| WOS研究方向 | Science Citation Index Expanded (SCI-EXPANDED) |
| WOS记录号 | WOS:000349087700062 |
| 出版者 | NATL ACAD SCIENCES |
| 文献子类 | Article |
| 出版地 | WASHINGTON |
| 资助机构 | Japan Society for the Promotion of Science [JSPS] [GS008, 26252020] ; National Natural Science Foundation of China [31370464] ; State Key Laboratory of Forest and Soil Ecology, Institute of Applied Ecology, Chinese Academy of Sciences [Y1SRC211S1] ; JSPS [21310008] ; National Science Foundation [DEB-1150246] ; JSPS ; [20-08421] ; [21-09318] |
| 作者邮箱 | keikoba@cc.tuat.ac.jp |
| 作品OA属性 | Green Published, Bronze |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.ibcas.ac.cn/handle/2S10CLM1/25623 |
| 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 Appl Ecol, State Key Lab Forest & Soil Ecol, Shenyang 110164, Peoples R China 2.Tokyo Univ Agr & Technol, Inst Agr, Fuchu, Tokyo 1838509, Japan 3.SUNY Binghamton, Dept Biol Sci, Binghamton, NY 13902 USA 4.Univ Tokyo, Grad Sch Agr & Life Sci, Tokyo 1138657, Japan 5.Houlton, Benjamin Z.] Univ Calif Davis, Dept Land Air & Water Resources, Davis, CA 95616 USA 6.Chinese Acad Sci, South China Bot Garden, Key Lab Vegetat Restorat & Management Degraded Ec, Guangzhou 510650, Guangdong, Peoples R China 7.Chinese Acad Forestry, Res Inst Trop Forestry, Guangzhou 510520, Guangdong, Peoples R China 8.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China |
| 推荐引用方式 GB/T 7714 | Fang, Yunting,Koba, Keisuke,Makabe, Akiko,et al. Microbial denitrification dominates nitrate losses from forest ecosystems[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2015,112(5):1470-1474. |
| APA | Fang, Yunting.,Koba, Keisuke.,Makabe, Akiko.,Takahashi, Chieko.,Zhu, Weixing.,...&Yoh, Muneoki.(2015).Microbial denitrification dominates nitrate losses from forest ecosystems.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,112(5),1470-1474. |
| MLA | Fang, Yunting,et al."Microbial denitrification dominates nitrate losses from forest ecosystems".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 112.5(2015):1470-1474. |
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| Fang-2015-Microbial （790KB） | 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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