Optimizing In-Situ Measurement of Representative BVOC Emission Factors Considering Intraspecific Variability
文献类型：期刊论文
| 作者 | Zeng, Jianqiang1,2,3; Zhang, Yanli2,3 ; Pang, Weihua1,2,3; Ran, Haofan1,2,3; Guo, Hao2,3; Song, Wei2,3; Wang, Xinming2,3
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| 刊名 | GEOPHYSICAL RESEARCH LETTERS
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| 出版日期 | 2024-06-16 |
| 卷号 | 51期号:11页码:9 |
| 关键词 | biogenic volatile organic compound (BVOC) emission factors intraspecific variability isoprene monoterpene eucalyptus |
| ISSN号 | 0094-8276 |
| DOI | 10.1029/2024GL108870 |
| 英文摘要 | Accurately measuring emission factors (Es) of biogenic volatile organic compounds (BVOCs) with consideration of intraspecific variability is vital but often overlooked. This study presents in-situ measurements of BVOC emissions from 114 Eucalyptus urophylla individuals using the LI-6800 portable photosynthesis system. We observed intraspecific variability exceeding an order of magnitude in BVOC Es. Despite this variability, our approach yielded statistically representative Es for E. urophylla, yet challenging the feasibility of extensive field measurements. By quickly screening net photosynthesis rate (Pn) across a broad set of individuals and selecting those within a specific Pn range, such as mean +/- 0.1 x SD (standard deviation) of Pn for all screened individuals, for detailed BVOC emission measurements, we achieved comparable mean Es with approximately 10% of the original sampling effort. This offers a practical solution for efficient and accurate field measurement of representative BVOC Es, significantly reducing required sample size while effectively addressing intraspecific variability. Quantifying the emission of volatile organic compounds, such as isoprene, by trees is important yet poses significant challenges, particularly due to the variability observed within a single species. In our study, we used a portable devise to measure these emissions from 114 Eucalyptus urophylla trees within the same plantation, uncovering variances that spanned more than tenfold. Given the impracticality of measuring such a large number of trees to obtain statistically representative emissions data that accounts for intraspecific variability, we proposed a simpler way to get accurate measurements by strategically selecting a smaller subset of trees. This method drastically cuts down the effort and time needed for such studies, making it easier to gather reliable data in natural environments. Biogenic volatile organic compound (BVOC) emission factors (Es) for 114 Eucalyptus urophylla individuals were measured in situ Intraspecific variation in Es of BVOC exceeded an order of magnitude, with average Es statistically representative A novel method was introduced for fast, accurate and efficient measurement of representative Es of BVOC with reduced sample size |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:001239576100001 |
| 源URL | [http://ir.gig.ac.cn/handle/344008/78468]  |
| 专题 | 有机地球化学国家重点实验室 |
| 通讯作者 | Zhang, Yanli; Wang, Xinming |
| 作者单位 | 1.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Geochem, Guangdong Key Lab Environm Protect & Resources Ut, Guangzhou, Peoples R China 3.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zeng, Jianqiang,Zhang, Yanli,Pang, Weihua,et al. Optimizing In-Situ Measurement of Representative BVOC Emission Factors Considering Intraspecific Variability[J]. GEOPHYSICAL RESEARCH LETTERS,2024,51(11):9. |
| APA | Zeng, Jianqiang.,Zhang, Yanli.,Pang, Weihua.,Ran, Haofan.,Guo, Hao.,...&Wang, Xinming.(2024).Optimizing In-Situ Measurement of Representative BVOC Emission Factors Considering Intraspecific Variability.GEOPHYSICAL RESEARCH LETTERS,51(11),9. |
| MLA | Zeng, Jianqiang,et al."Optimizing In-Situ Measurement of Representative BVOC Emission Factors Considering Intraspecific Variability".GEOPHYSICAL RESEARCH LETTERS 51.11(2024):9. |
入库方式： OAI收割
来源：广州地球化学研究所
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