Measurements of hydrocarbon emissions from a boreal fen using the REA technique

被引：45

作者：

Haapanala, S ^{[1
]}

Rinne, J

Pystynen, KH

Hellén, H

Hakola, H

Riutta, T

机构：

[1] Univ Helsinki, Dept Phys Sci, Helsinki, Finland

[2] Finnish Meteorol Inst, Air Chem Lab, FIN-00101 Helsinki, Finland

[3] Univ Helsinki, Dept Forest Ecol, Helsinki, Finland

来源：

BIOGEOSCIENCES | 2006年 / 3卷 / 01期

关键词：

D O I：

10.5194/bg-3-103-2006

中图分类号：

Q14 [生态学（生物生态学）];

学科分类号：

071012 ; 0713 ;

摘要：

Fluxes of biogenic volatile organic compounds (VOC) and methane were measured above a boreal fen. Vegetation on the fen is dominated by Sphagnum mosses and sedges. A relaxed eddy accumulation (REA) system with dynamic deadband was designed and constructed for the measurements. Methane, C-2-C-6 hydrocarbons and some halogenated hydrocarbons were analysed from the samples by gas chromatographs equipped with FID and ECD. A significant flux of isoprene and methane was detected during the growing seasons. Isoprene emission was found to follow the common isoprene emission algorithm. Average standard emission potential of isoprene was 680 mu g m(-2) h(-1). Fluxes of other non-methane hydrocarbons were below detection limit.

引用

页码：103 / 112

页数：10

共 56 条

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