Modulating effects of temperature on CO2-inhibited isoprene emissions in Eucalyptus urophylla
文献类型：期刊论文
| 作者 | Pang, Weihua1,2,3; Zhang, Yanli1,2,3 ; Zeng, Jianqiang1,2; Tian, Xiao1,2; Wang, Xinming1,2,3
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| 刊名 | FRONTIERS IN ENVIRONMENTAL SCIENCE
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| 出版日期 | 2024-10-02 |
| 卷号 | 12页码:9 |
| 关键词 | biogenic volatile organic compounds (bvocs) isoprene tropical/subtropical isoprene-CO2 response Eucalyptus urophylla |
| DOI | 10.3389/fenvs.2024.1490552 |
| 英文摘要 | Terrestrial vegetation emits substantial amounts of highly reactive isoprene, significantly impacting atmospheric chemistry and climate change. Both atmospheric carbon dioxide (CO2) concentration and temperature can influence plant isoprene emissions; however, whether these factors have a synergistic effect remains unclear, particularly for tropical/subtropical plants. In this study, we conducted in-situ controlled experiments on Eucalyptus urophylla, a representative tropical/subtropical species, to investigate the seasonal variation in the response of isoprene emissions to CO2 concentrations (ISOP-CO2 response) and to identify potential controlling factors. The results showed that high CO2 exerts a nearly linear inhibitory effect on isoprene emissions, as indicated by the slope of the ISOP-CO2 response curve. This inhibitory effect exhibited evident seasonal changes, with stronger suppression during cooler seasons and weaker suppression during warmer seasons. This finding contrasts with the default ISOP-CO2 response in the MEGAN model, which ignored seasonal variation. Further analysis showed a significant correlation between the slope of the ISOP-CO(2 )response curve and growth temperature from the past 10 days, indicating that these metrics are effective indicators for predicting seasonal changes. Our findings reveal a synergistic mechanism between temperature and CO2 concentration effects on isoprene emissions. By coupling the effects of growth temperature with the ISOP-CO2 response, this mechanism can be integrated into models to provide more accurate predictions of future isoprene emissions, reducing prediction biases, especially during cooler seasons. |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:001332580200001 |
| 源URL | [http://ir.gig.ac.cn/handle/344008/81206]  |
| 专题 | 有机地球化学国家重点实验室 |
| 通讯作者 | Zhang, Yanli |
| 作者单位 | 1.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Geochem, Guangdong Key Lab Environm Protect & Resources Uti, Guangzhou, Peoples R China 3.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Pang, Weihua,Zhang, Yanli,Zeng, Jianqiang,et al. Modulating effects of temperature on CO2-inhibited isoprene emissions in Eucalyptus urophylla[J]. FRONTIERS IN ENVIRONMENTAL SCIENCE,2024,12:9. |
| APA | Pang, Weihua,Zhang, Yanli,Zeng, Jianqiang,Tian, Xiao,&Wang, Xinming.(2024).Modulating effects of temperature on CO2-inhibited isoprene emissions in Eucalyptus urophylla.FRONTIERS IN ENVIRONMENTAL SCIENCE,12,9. |
| MLA | Pang, Weihua,et al."Modulating effects of temperature on CO2-inhibited isoprene emissions in Eucalyptus urophylla".FRONTIERS IN ENVIRONMENTAL SCIENCE 12(2024):9. |
入库方式： OAI收割
来源：广州地球化学研究所
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