Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-17-3357-2017 |
Terpenoid and carbonyl emissions from Norway spruce in Finland during the growing season | |
Hakola, Hannele1; Tarvainen, Virpi1; Praplan, Arnaud P.1; Jaars, Kerneels2; Hemmila, Marja1; Kulmala, Markku3; Back, Jaana4; Hellen, Heidi1 | |
2017-03-08 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS |
ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2017 |
卷号 | 17期号:5 |
文章类型 | Article |
语种 | 英语 |
国家 | Finland; South Africa |
英文摘要 | We present spring and summer volatile organic compound (VOC) emission rate measurements from Norway spruce (Picea abies L. Karst) growing in a boreal forest in southern Finland. The measurements were conducted using in situ gas chromatograph with 1 to 2 h time resolution to reveal quantitative and qualitative short-term and seasonal variability of the emissions. The measurements cover altogether 14 weeks in years 2011, 2014 and 2015. Monoterpene (MT) and sesquiterpene (SQT) emission rates were measured all the time, but isoprene only in 2014 and 2015 and acetone and C-4-C-10 aldehydes only in 2015. The emission rates of all the compounds were low in spring, but MT, acetone, and C-4-C-10 aldehyde emission rates increased as summer proceeded, reaching maximum emission rates in July. Late summer mean values (late July and August) were 29, 17, and 33 ng g(dw)(-1) h(-1) for MTs, acetone, and aldehydes respectively. SQT emission rates increased during the summer and highest emissions were measured in late summer (late summer mean value 84 ng g(dw)(-1) h(-1)) concomitant with highest linalool emissions most likely due to stress effects. The between-tree variability of emission pattern was studied by measuring seven different trees during the same afternoon using adsorbent tubes. Especially the contributions of limonene, terpinolene, and camphene were found to vary between trees, whereas proportions of alpha-pinene (25 +/- 5 %) and beta-pinene (7 +/- 3 %) were more stable. Our results show that it is important to measure emissions at canopy level due to irregular emission pattern, but reliable SQT emission data can be measured only from enclosures. SQT emissions contributed more than 90% of the ozone reactivity most of the time, and about 70% of the OH reactivity during late summer. The contribution of aldehydes to OH reactivity was comparable to that of MT during late summer, 10-30% most of the time. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000396203000003 |
WOS关键词 | VOLATILE ORGANIC-COMPOUNDS ; GAS-PHASE REACTIONS ; OH REACTIVITY MEASUREMENTS ; RATE CONSTANTS ; BOREAL FOREST ; NO3 RADICALS ; SCOTS PINE ; VOC EMISSIONS ; PICEA-ABIES ; ATMOSPHERIC CHEMISTRY |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
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/21674 |
专题 | 地球科学 |
作者单位 | 1.Finnish Meteorol Inst, Atmospher Composit Unit, POB 503, Helsinki 00101, Finland; 2.North West Univ, Unit Environm Sci & Management, Potchefstroom, South Africa; 3.Univ Helsinki, Dept Phys, POB 64, Helsinki 00014, Finland; 4.Univ Helsinki, Dept Forest Ecol, POB 27, Helsinki 00014, Finland |
推荐引用方式 GB/T 7714 | Hakola, Hannele,Tarvainen, Virpi,Praplan, Arnaud P.,et al. Terpenoid and carbonyl emissions from Norway spruce in Finland during the growing season[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2017,17(5). |
APA | Hakola, Hannele.,Tarvainen, Virpi.,Praplan, Arnaud P..,Jaars, Kerneels.,Hemmila, Marja.,...&Hellen, Heidi.(2017).Terpenoid and carbonyl emissions from Norway spruce in Finland during the growing season.ATMOSPHERIC CHEMISTRY AND PHYSICS,17(5). |
MLA | Hakola, Hannele,et al."Terpenoid and carbonyl emissions from Norway spruce in Finland during the growing season".ATMOSPHERIC CHEMISTRY AND PHYSICS 17.5(2017). |
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