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@ARTICLE{Komenda:23866,
author = {Komenda, M. and Kobel, K. and Koppmann, R. and Wildt, J.},
title = {{C}omparability of biogenic {VOC} emission rate
measurements under laboratory and ambient conditions at the
example of monoterpene emissions from {S}cots pine ({P}inus
sylvestris)},
journal = {Journal of atmospheric chemistry},
volume = {45},
issn = {0167-7764},
address = {Dordrecht [u.a.]},
publisher = {Springer Science + Business Media B.V},
reportid = {PreJuSER-23866},
pages = {1 - 23},
year = {2003},
note = {Record converted from VDB: 12.11.2012},
abstract = {Laboratory experiments under controlled environmental
conditions are a useful tool to investigate the influence of
different environmental parameters on VOC emissions from
plants individually. Before using the obtained results to
interpret measurements under ambient conditions, it has to
be ensured that the laboratory system is suitable for
performing emission rate measurements under ambient-like
conditions to derive algorithms describing the emissions of
volatile organic compounds as a function of physical
variables like temperature and light intensity. Here we
compare results from monoterpene emission rate measurements
with Scots pines (Pinus sylvestris L.) under both ambient
environmental conditions using a mobile plant enclosure
chamber, and under controlled laboratory conditions in a
continuously stirred tank reactor. The different analytical
instruments to quantify monoterpene emissions were compared
in an intercalibration experiment. Measurements of the
mixing ratios of alpha-pinene, beta-pinene, 3-carene,
camphene, and limonene on the order of some hundred parts
per trillion differed by less than $20\%.$ The laboratory
system has proven capable of providing ambient-like
conditions and results of monoterpene emission rate
measurements under laboratory conditions could be
extrapolated to the natural environment. Monoterpene
emission rate measurements with identical specimens of Scots
pines conducted within small temporal differences under
similar laboratory and outdoor conditions agreed well. Both
laboratory and outdoor experiments clearly showed that
distinct and constant values neither exist for the standard
emission rates nor for the emission pattern of monoterpenes
from Scots pine. Temporal variations in the standard
emission rates from identical specimens and plant-to-plant
variations were on the order of one magnitude.},
keywords = {J (WoSType)},
cin = {ICG-II / ICG-III},
ddc = {540},
cid = {I:(DE-Juel1)VDB48 / I:(DE-Juel1)VDB49},
pnm = {Chemie und Dynamik der Geo-Biosphäre},
pid = {G:(DE-Juel1)FUEK257},
shelfmark = {Environmental Sciences / Meteorology $\&$ Atmospheric
Sciences},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000183325000001},
doi = {10.1023/A:1024082410326},
url = {https://juser.fz-juelich.de/record/23866},
}