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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},
}