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Emissions and ambient distributions of Biogenic Volatile Organic Compounds（BVOC）in a ponderosa pine ecosystem: interpretation of PTR-MS mass spectra
Biogenic Volatile Organic Compounds BVOC ponderosa pine ecosystem PTR-MS mass spectra
2010/2/21
Two proton-transfer-reaction mass spectrometry systems were deployed at the Bio-hydro-atmosphere interactions of Energy, Aerosols, Carbon, H2O, Organics and Nitrogen-Southern Rocky Mountain 2008 field...
Carbonyl sulfide exchange in a temperate loblolly pine forest grown under ambient and elevated CO2
Carbonyl sulfide loblolly pine forest CO2
2010/2/1
Vegetation, soil and ecosystem level carbonyl sulfide (COS) exchange was observed at Duke Forest, a temperate loblolly pine forest, grown under ambient (Ring 1, R1) and elevated (Ring 2, R2) CO2. Duri...
Eddy covariance methane measurements at a Ponderosa pine plantation in CaliforniaEddy covariance methane measurements at a Ponderosa pine plantation in California
Eddy covariance methane measurements Ponderosa pine plantation California
2009/11/19
Long term methane flux measurements have been mostly performed with plant or soil enclosure techniques on specific components of an ecosystem. New fast response methane analyzers make it possible to u...
New particle formation from the oxidation of direct emissions of pine seedlings
New particle formation oxidation direct emissions pine seedlings
2009/11/9
Measurements of particle formation following the gas phase oxidation of volatile organic compounds (VOCs) emitted by Scots pine (Pinus sylvestris L.) seedlings are reported. Particle formation and con...
Vertical advection and nocturnal deposition of ozone over a boreal pine forest
Vertical advection nocturnal deposition ozone boreal pine forest
2009/3/31
Night-time ozone deposition for a Scots pine forest in Southern Finland was studied at the SMEAR II measurement station by evaluating the turbulent eddy covariance (EC), storage change and vertical ad...
Eddy covariance fluxes of acyl peroxy nitrates (PAN, PPN and MPAN) above a Ponderosa pine forest
Eddy covariance fluxes acyl peroxy nitrates PAN PPN MPAN Ponderosa pine forest
2009/3/12
During the Biosphere Effects on AeRosols and Photochemistry EXperiment 2007 (BEARPEX-2007), we observed eddy covariance (EC) fluxes of speciated acyl peroxy nitrates (APNs), including peroxyacetyl nit...
Temperature and light dependence of the VOC emissions of Scots pine
Temperature light VOC emissions Scots pine
2009/2/8
The volatile organic compound (VOC) emission rates of Scots pine (Pinus sylvestris L.) were measured from trees growing in a natural forest environment at two locations in Finland. The observed total ...
The bi-directional exchange of oxygenated VOCs between a loblolly pine (Pinus taeda) plantation and the atmosphere
bi-directional exchange oxygenated VOCs loblolly pine plantation atmosphere
2009/1/14
Using new in-situ field observations of the most abundant oxygenated VOCs (methanol, acetaldehyde, acetone, C3/C4 carbonyls, MVK+MAC and acetic acid) we were able to constrain emission and deposition ...
Seasonal variability of monoterpene emission factors for a ponderosa pine plantation in California
Seasonal variability monoterpene emission factors ponderosa pine plantation California
2009/1/6
Monoterpene fluxes have been measured over an 11 month period from June 2003 to April 2004. During all seasons ambient air temperature was the environmental factor most closely related to the measured...
Hydrocarbon fluxes above a Scots pine forest canopy: measurements and modeling
Hydrocarbon fluxes Scots pine forest canopy
2008/12/12
We measured the fluxes of several hydrocarbon species above a Scots pine (Pinus sylvestris) stand using disjunct eddy covariance technique with proton transfer reaction – mass spectrometry. The measur...
Observations of HNO3, ΣAN, ΣPN and NO2 fluxes: evidence for rapid HOx chemistry within a pine forest canopy
HNO3 HOx chemistry forest canopy
2008/11/13
Measurements of exchange of reactive nitrogen oxides between the atmosphere and a ponderosa pine forest in the Sierra Nevada Mountains are reported. During winter, we observe upward fluxes of NO2, and...