Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1073/pnas.2008901117 |
Separating direct and indirect effects of rising temperatures on biogenic volatile emissions in the Arctic | |
Riikka Rinnan; Lars L. Iversen; Jing Tang; Ida Vedel-Petersen; Michelle Schollert; Guy Schurgers | |
2020-11-30 | |
发表期刊 | Proceedings of the National Academy of Science |
出版年 | 2020 |
英文摘要 | Volatile organic compounds (VOCs) are released from biogenic sources in a temperature-dependent manner. Consequently, Arctic ecosystems are expected to greatly increase their VOC emissions with ongoing climate warming, which is proceeding at twice the rate of global temperature rise. Here, we show that ongoing warming has strong, increasing effects on Arctic VOC emissions. Using a combination of statistical modeling on data from several warming experiments in the Arctic tundra and dynamic ecosystem modeling, we separate the impacts of temperature and soil moisture into direct effects and indirect effects through vegetation composition and biomass alterations. The indirect effects of warming on VOC emissions were significant but smaller than the direct effects, during the 14-y model simulation period. Furthermore, vegetation changes also cause shifts in the chemical speciation of emissions. Both direct and indirect effects result in large geographic differences in VOC emission responses in the warming Arctic, depending on the local vegetation cover and the climate dynamics. Our results outline complex links between local climate, vegetation, and ecosystem–atmosphere interactions, with likely local-to-regional impacts on the atmospheric composition. |
领域 | 地球科学 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/305792 |
专题 | 地球科学 |
推荐引用方式 GB/T 7714 | Riikka Rinnan,Lars L. Iversen,Jing Tang,et al. Separating direct and indirect effects of rising temperatures on biogenic volatile emissions in the Arctic[J]. Proceedings of the National Academy of Science,2020. |
APA | Riikka Rinnan,Lars L. Iversen,Jing Tang,Ida Vedel-Petersen,Michelle Schollert,&Guy Schurgers.(2020).Separating direct and indirect effects of rising temperatures on biogenic volatile emissions in the Arctic.Proceedings of the National Academy of Science. |
MLA | Riikka Rinnan,et al."Separating direct and indirect effects of rising temperatures on biogenic volatile emissions in the Arctic".Proceedings of the National Academy of Science (2020). |
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