GSTDTAP  > 地球科学
DOI10.5194/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
ISSN1680-7316
EISSN1680-7324
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
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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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