| 来源类型 | Article |
| 规范类型 | 其他 |
| DOI | 10.1038/s41598-017-08755-8 |
| Atmospheric deposition, CO2, and change in the land carbon sink. | |
| Fernández-Martínez M; Vicca S; Janssens IA; Ciais P; Obersteiner M; Bartrons M; Sardans J; Verger A | |
| 发表日期 | 2017 |
| 出处 | Scientific Reports 7 (1): p. 9632 |
| 出版年 | 2017 |
| 语种 | 英语 |
| 摘要 | Concentrations of atmospheric carbon dioxide (CO2) have continued to increase whereas atmospheric deposition of sulphur and nitrogen has declined in Europe and the USA during recent decades. Using time series of flux observations from 23 forests distributed throughout Europe and the USA, and generalised mixed models, we found that forest-level net ecosystem production and gross primary production have increased by 1% annually from 1995 to 2011. Statistical models indicated that increasing atmospheric CO2 was the most important factor driving the increasing strength of carbon sinks in these forests. We also found that the reduction of sulphur deposition in Europe and the USA lead to higher recovery in ecosystem respiration than in gross primary production, thus limiting the increase of carbon sequestration. By contrast, trends in climate and nitrogen deposition did not significantly contribute to changing carbon fluxes during the studied period. Our findings support the hypothesis of a general CO2-fertilization effect on vegetation growth and suggest that, so far unknown, sulphur deposition plays a significant role in the carbon balance of forests in industrialized regions. Our results show the need to include the effects of changing atmospheric composition, beyond CO2, to assess future dynamics of carbon-climate feedbacks not currently considered in earth system/climate modelling. |
| 主题 | Ecosystems Services and Management (ESM) |
| URL | http://pure.iiasa.ac.at/id/eprint/14803/ |
| 来源智库 | International Institute for Applied Systems Analysis (Austria) |
| 引用统计 | |
| 资源类型 | 智库出版物 |
| 条目标识符 | http://119.78.100.153/handle/2XGU8XDN/131027 |
| 推荐引用方式 GB/T 7714 | Fernández-Martínez M,Vicca S,Janssens IA,et al. Atmospheric deposition, CO2, and change in the land carbon sink.. 2017. |
| 条目包含的文件 | ||||||
| 文件名称/大小 | 资源类型 | 版本类型 | 开放类型 | 使用许可 | ||
| s41598-017-08755-8.p（3227KB） | 智库出版物 | 限制开放 | CC BY-NC-SA | 浏览 | ||
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