%0 Journal Article %1 1985JGR....90.2380L %A Lamb, B. %A Westberg, H. %A Allwine, G. %A Quarles, T. %D 1985 %J \jgr %K Biogenic Douglas_fir Pseudotsuga_menziesii alpha_pinene coniferous deciduous emissions hydrocarbon isoprene trees %P 2380-2390 %T Biogenic hydrocarbon emissions from deciduous and coniferous trees in the United States %V 90 %X Measurements of natural hydrocarbon emission fluxes are reported for a northeastern U.S. deciduous forest, for a northwestern U.S. coniferous forest, and for dominant tree species in the Atlanta, Georgia, region. The emission data were obtained by using a vegetation enclosure procedure and a micrometerologial gradient technique. Isoprene fluxes determined by the gradient method in the deciduous forest varied from 2500 μg/m2/h at 20°C to 8000 μg/m2/h at 30°C. Corresponding fluxes obtained with the vegetation enclosure method ranged from 890 to 7300 μm/m2/h. Isoprene fluxes determined by both methods increased exponentially with increasing temperature. Emission rates from isoprene-emitting trees in the Atlanta area were similar to those observed in Pennsylvania. Alpha-pinene fluxes measured in a Douglas fir (Pseudotsuga menziesii) forest ranged from 9 to 1320 μg/m2/h. Relative humidity appeared to directly influence the alpha-pinene emission rate. The reasonable agreement between hydrocarbon fluxes obtained with two independent techniqus is significant evidence of the general validity of current biogenic hydrocarbon emission rates.

@article{1985JGR....90.2380L, abstract = {Measurements of natural hydrocarbon emission fluxes are reported for a northeastern U.S. deciduous forest, for a northwestern U.S. coniferous forest, and for dominant tree species in the Atlanta, Georgia, region. The emission data were obtained by using a vegetation enclosure procedure and a micrometerologial gradient technique. Isoprene fluxes determined by the gradient method in the deciduous forest varied from 2500 μg/m2/h at 20°C to 8000 μg/m2/h at 30°C. Corresponding fluxes obtained with the vegetation enclosure method ranged from 890 to 7300 μm/m2/h. Isoprene fluxes determined by both methods increased exponentially with increasing temperature. Emission rates from isoprene-emitting trees in the Atlanta area were similar to those observed in Pennsylvania. Alpha-pinene fluxes measured in a Douglas fir (Pseudotsuga menziesii) forest ranged from 9 to 1320 μg/m2/h. Relative humidity appeared to directly influence the alpha-pinene emission rate. The reasonable agreement between hydrocarbon fluxes obtained with two independent techniqus is significant evidence of the general validity of current biogenic hydrocarbon emission rates.}, added-at = {2008-05-17T01:12:01.000+0200}, adsnote = {Provided by the SAO/NASA Astrophysics Data System}, adsurl = {http://adsabs.harvard.edu/abs/1985JGR....90.2380L}, author = {{Lamb}, B. and {Westberg}, H. and {Allwine}, G. and {Quarles}, T.}, biburl = {https://www.bibsonomy.org/bibtex/21bdfe6c72103072b7336ea88b665e3e2/thulefoth}, description = {Biogenic hydrocarbon emissions from deciduous and coniferous trees in the United}, interhash = {632c2cbc84db5d3130597b1ebdbfe4ee}, intrahash = {1bdfe6c72103072b7336ea88b665e3e2}, journal = {\jgr}, keywords = {Biogenic Douglas_fir Pseudotsuga_menziesii alpha_pinene coniferous deciduous emissions hydrocarbon isoprene trees}, month = {February}, pages = {2380-2390}, timestamp = {2008-05-17T01:12:02.000+0200}, title = {{Biogenic hydrocarbon emissions from deciduous and coniferous trees in the United States}}, volume = 90, year = 1985 }