Precipitation thresholds regulate net carbon exchange at the continental scale
文献类型：期刊论文
| 作者 | Poulter, Benjamin4; Liu, Zhihua2,3; Ballantyne, Ashley P.2; Anderegg, William R. L.1; Li, Wei5; Bastos, Ana5,6; Ciais, Philippe5 |
| 刊名 | NATURE COMMUNICATIONS
 |
| 出版日期 | 2018-09-05 |
| 卷号 | 9 |
| ISSN号 | 2041-1723 |
| DOI | 10.1038/s41467-018-05948-1 |
| 英文摘要 | Understanding the sensitivity of ecosystem production and respiration to climate change is critical for predicting terrestrial carbon dynamics. Here we show that the primary control on the inter-annual variability of net ecosystem carbon exchange switches from production to respiration at a precipitation threshold between 750 and 950 mm yr(-1) in the contiguous United States. This precipitation threshold is evident across multiple datasets and scales of observation indicating that it is a robust result and provides a new scaling relationship between climate and carbon dynamics. However, this empirical precipitation threshold is not captured by dynamic global vegetation models, which tend to overestimate the sensitivity of production and underestimate the sensitivity of respiration to water availability in more mesic regions. Our results suggest that the short-term carbon balance of ecosystems may be more sensitive to respiration losses than previously thought and that model simulations may underestimate the positive carbon-climate feedbacks associated with respiration. |
| WOS研究方向 | Science & Technology - Other Topics |
| 语种 | 英语 |
| WOS记录号 | WOS:000443739000004 |
| 出版者 | NATURE PUBLISHING GROUP |
| 源URL | [http://210.72.129.5/handle/321005/121201]  |
| 专题 | 中国科学院沈阳应用生态研究所 |
| 通讯作者 | Liu, Zhihua |
| 作者单位 | 1.Univ Utah, Dept Biol, Salt Lake City, UT 84112 USA 2.Univ Montana, Dept Ecosyst & Conservat Sci, Missoula, MT 59812 USA 3.Chinese Acad Sci, Inst Appl Ecol, CAS Key Lab Forest Ecol & Management, Shenyang 110016, Liaoning, Peoples R China 4.NASA, Biospher Sci Lab, Goddard Space Flight Ctr, Greenbelt, MD 20770 USA 5.Univ Paris Saclay, Univ Versailles St Quentin, Commissariat Energie Atom & Energies Alternat, CNRS,Lab Sci Climat & Environm,Inst Pierre Simon, F-91191 Gif Sur Yvette, France 6.Ludwig Maximilians Univ Munchen, Dept Geog, Luisenstr 37, D-80333 Munich, Germany |
| 推荐引用方式 GB/T 7714 | Poulter, Benjamin,Liu, Zhihua,Ballantyne, Ashley P.,et al. Precipitation thresholds regulate net carbon exchange at the continental scale[J]. NATURE COMMUNICATIONS,2018,9. |
| APA | Poulter, Benjamin.,Liu, Zhihua.,Ballantyne, Ashley P..,Anderegg, William R. L..,Li, Wei.,...&Ciais, Philippe.(2018).Precipitation thresholds regulate net carbon exchange at the continental scale.NATURE COMMUNICATIONS,9. |
| MLA | Poulter, Benjamin,et al."Precipitation thresholds regulate net carbon exchange at the continental scale".NATURE COMMUNICATIONS 9(2018). |
入库方式： OAI收割
来源：沈阳应用生态研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。