Claim · model-written summary
Branch enclosures of woodland plants revealed 78 VOCs.
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionQualifier
Verbatim
e0“Natural volatile organic compound (VOC) fluxes were measured in three U.S. woodlands in summer 1993”
e1“The branch enclosure experiments revealed 78 VOCs”
Title
A. Guenther; J. Greenberg; P. Harley; et al. Tree Physiology 1996. doi:10.1093/treephys/16.1-2.17
Other claims from this paper (18)
- Observation Hexenol derivatives were the most commonly observed oxygenated compounds in woodland branch emissions.
- Observation Albizia showed high isoprene emission rates.
- Observation Chusqua showed high isoprene emission rates.
- Observation Mahonia showed high isoprene emission rates.
- Observation Atriplex showed high monoterpene emission rates.
- Observation Chrysthamnus showed high monoterpene emission rates.
- Observation Sorbus showed high monoterpene emission rates.
- Observation Measurements on 34 additional species confirmed previous VOC emission results.
- Observation Leaf enclosure isoprene emission rates from Quercus were substantially higher than the rates used in existing emission models.
- Method / resource Model predictions of diurnal isoprene flux variations were within ±35% of observed variations.
- Method / resource A 60 min time resolution is reasonable for biogenic emission models.
- Observation Average daytime stand-scale flux over a shrub oak stand was 1.3 mg C m(-2) h(-1).
- Observation Average daytime stand-scale flux over a mixed forest stand was 1.5-2.5 mg C m(-2) h(-1).
- Observation Morning, evening and nighttime fluxes from woodlands were less than 0.1 mg C m(-2) h(-1).
- Observation Average daytime landscape-scale flux over a shrub oak-aspen and rangeland landscape was about 3 mg C m(-2) h(-1).
- Observation Average daytime landscape-scale flux over a deciduous forest landscape was about 7 mg C m(-2) h(-1).
- Method / resource BEIS2 and BEIS2.1 predicted fluxes within 10 to 50% of observed fluxes.
- Method / resource Fluxes predicted by BEIS2 versions were about 300% higher than those of the previous BEIS model.