Phosphorus rather than nitrogen regulates ecosystem carbon dynamics after permafrost thaw
文献类型：期刊论文
| 作者 | Yang, Guibiao3; Peng, Yunfeng; Abbott, Benjamin W.; Biasi, Christina1; Wei, Bin3; Zhang, Dianye; Wang, Jun; Yu, Jianchun; Li, Fei; Wang, Guanqin3 |
| 刊名 | GLOBAL CHANGE BIOLOGY
 |
| 出版日期 | 2021 |
| 卷号 | 27期号:22页码:5818-5830 |
| 关键词 | carbon cycle carbon fluxes carbon-climate feedback climate warming nutrient availability thermokarst |
| ISSN号 | 1354-1013 |
| DOI | 10.1111/gcb.15845 |
| 文献子类 | Article |
| 英文摘要 | Ecosystem carbon (C) dynamics after permafrost thaw depends on more than just climate change since soil nutrient status may also impact ecosystem C balance. It has been advocated that nitrogen (N) release upon permafrost thaw could promote plant growth and thus offset soil C loss. However, compared with the widely accepted C-N interactions, little is known about the potential role of soil phosphorus (P) availability. We combined 3-year field observations along a thaw sequence (constituted by four thaw stages, i.e., non-collapse and 5, 14, and 22 years since collapse) with an in-situ fertilization experiment (included N and P additions at the level of 10 g N m(-2) year(-1) and 10 g P m(-2) year(-1)) to evaluate ecosystem C-nutrient interactions upon permafrost thaw. We found that changes in soil P availability rather than N availability played an important role in regulating gross primary productivity and net ecosystem productivity along the thaw sequence. The fertilization experiment confirmed that P addition had stronger effects on plant growth than N addition in this permafrost ecosystem. These two lines of evidence highlight the crucial role of soil P availability in altering the trajectory of permafrost C cycle under climate warming. |
| 学科主题 | Biodiversity Conservation ; Ecology ; Environmental Sciences |
| 出版地 | HOBOKEN |
| 电子版国际标准刊号 | 1365-2486 |
| WOS关键词 | CO2 FLUX ; SOIL ; TUNDRA ; AVAILABILITY ; PRODUCTIVITY ; DEGRADATION ; LIMITATION ; PLATEAU ; ALASKA |
| WOS研究方向 | Science Citation Index Expanded (SCI-EXPANDED) |
| 语种 | 英语 |
| WOS记录号 | WOS:000688992800001 |
| 出版者 | WILEY |
| 资助机构 | National Natural Science Foundation of China [31825006, 31988102, 91837312] ; Second Tibetan Plateau Scientific Expedition and Research (STEP) program [2019QZKK0106] ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences [QYZDB-SSW-SMC049] ; China National Postdoctoral Program for Innovative Talents [BX20200363] |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/26473]  |
| 专题 | 植被与环境变化国家重点实验室 |
| 作者单位 | 1.Abbott, Benjamin W.] Brigham Young Univ, Dept Plant & Wildlife Sci, Provo, UT 84602 USA 2.Univ Chinese Acad Sci, Beijing, Peoples R China 3.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 4.Univ Eastern Finland, Dept Environm & Biol Sci, Kuopio, Finland |
| 推荐引用方式 GB/T 7714 | Yang, Guibiao,Peng, Yunfeng,Abbott, Benjamin W.,et al. Phosphorus rather than nitrogen regulates ecosystem carbon dynamics after permafrost thaw[J]. GLOBAL CHANGE BIOLOGY,2021,27(22):5818-5830. |
| APA | Yang, Guibiao.,Peng, Yunfeng.,Abbott, Benjamin W..,Biasi, Christina.,Wei, Bin.,...&Yang, Yuanhe.(2021).Phosphorus rather than nitrogen regulates ecosystem carbon dynamics after permafrost thaw.GLOBAL CHANGE BIOLOGY,27(22),5818-5830. |
| MLA | Yang, Guibiao,et al."Phosphorus rather than nitrogen regulates ecosystem carbon dynamics after permafrost thaw".GLOBAL CHANGE BIOLOGY 27.22(2021):5818-5830. |
入库方式： OAI收割
来源：植物研究所
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