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| DOI | 10.1016/j.atmosenv.2020.118064 |
| Biogenic volatile organic compounds in different ecosystems in Southern Kenya | |
| Liu Y.; Schallhart S.; Tykkä T.; Räsänen M.; Merbold L.; Hellén H.; Pellikka P. | |
| 发表日期 | 2021 |
| ISSN | 1352-2310 |
| 卷号 | 246 |
| 英文摘要 | Biogenic volatile organic compounds (BVOCs) have an important impact on atmospheric chemistry. Mixing ratio of BVOCs in different ecosystems have been measured and discussed in detail in recent decades. However, field measurements from tropical Africa remain scarce. In this study, we present the mixing ratio of BVOCs, including isoprene, monoterpenoids, sesquiterpenes, bornylacetate, and 2–methyl–3–buten–2–ol from typical forests, bushlands, grasslands and agricultural ecosystems in Taita Taveta County, southern Kenya. The measurements were conducted in April 2019 during the end of the dry season. The total BVOC mixing ratios in forest, agricultural, bushland and grassland ecosystems were 913 ± 183 pptv, 1094 ± 179 pptv, 751 ± 47 pptv and 886 ± 95 pptv, respectively. Isoprene represented 76%, 86%, 91% and 85%, respectively, of total mixing ratios. Monoterpenoids represented in 23%, 14%, 8% and 14% of total mixing ratios, respectively. Monoterpenoid have strong effect on the total BVOC mixing ratios, especially at the certain landscape (i.e. wattletree, pine and cypress forest, and dry grassland). The monoterpenoids were dominated by α–pinene, limonene and β–pinene in all of the ecosystems. Linalool was found in a relative high mixing ratio from all lowland samples, which was likely responding to the lower soil moisture. © 2020 Elsevier Ltd |
| 关键词 | BVOC mixing ratioEcosystemIsopreneKenyaMonoterpenoidSesquiterpene |
| 语种 | 英语 |
| scopus关键词 | Agricultural robots; Atmospheric chemistry; Forestry; Isoprene; Mixing; Monoterpenes; Soil moisture; Volatile organic compounds; Agricultural ecosystems; Biogenic volatile organic compounds; Cypress forest; Field measurement; Grassland ecosystems; Mixing ratios; Monoterpenoids; Sesquiterpenes; Ecosystems; beta farnesene; beta pinene; bornyl acetate; caryophyllene; isoprene; limonene; linalool; monoterpenoid; pinene; sesquiterpene; terpinolene; volatile organic compound; agricultural ecosystem; atmospheric chemistry; chemical compound; grassland soil; landscape ecology; mixing ratio; secondary metabolite; soil moisture; spatiotemporal analysis; terpene; terrestrial ecosystem; volatile organic compound; Acacia mearnsii; biogenesis; chemical analysis; ecosystem; Euphorbia; Euphorbia candelabra; forest; grassland; Kenya; landscape; maize; nonhuman; priority journal; soil moisture; Kenya; Taita-Taveta; Cupressus |
| 来源期刊 | ATMOSPHERIC ENVIRONMENT
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| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/248723 |
| 作者单位 | Department of Geosciences and Geography, University of Helsinki, P.O. Box 64, Helsinki, 00014, Finland; Finnish Meteorological Institute, PL 503, Helsinki, 00101, Finland; Institute for Atmospheric and Earth System Research, Faculty of Science, University of Helsinki, Finland; Mazingira Centre, International Livestock Research Institute (ILRI), PO Box 30709, Nairobi, 00100, Kenya |
| 推荐引用方式 GB/T 7714 | Liu Y.,Schallhart S.,Tykkä T.,et al. Biogenic volatile organic compounds in different ecosystems in Southern Kenya[J],2021,246. |
| APA | Liu Y..,Schallhart S..,Tykkä T..,Räsänen M..,Merbold L..,...&Pellikka P..(2021).Biogenic volatile organic compounds in different ecosystems in Southern Kenya.ATMOSPHERIC ENVIRONMENT,246. |
| MLA | Liu Y.,et al."Biogenic volatile organic compounds in different ecosystems in Southern Kenya".ATMOSPHERIC ENVIRONMENT 246(2021). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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