Use este identificador para citar ou linkar para este item: http://repositorio.inpa.gov.br/handle/123/3639
Título: Biogeochemical cycling of carbon, water, energy, trace gases, and aerosols in Amazonia: The LBA-EUSTACH experiments
Autor(es): M O Andreae
J GRACE
P KABAT
J LELIEVELD
Y MALHI
Antonio Ocimar Manzi
F X MEIXNER
ANTONIO D NOBRE
CARLOS NOBRE
Maria de Lourdes Pinheiro Ruivo
M A SILVADIAS
Paulo Artaxo
P STEFANI
R VALENTINI
J VON JOUANNE
M J WATERLOO
C Brandão
F E Carswell
P Ciccioli
A L DA COSTA
A D CULF
JL ESTEVES
J H C GASH
Assunto: Atmospheric Composition and Structure
Geochemical cycles
ISSN: 0148-0227
Revista: Journal of Geophysical Research
Volume: 107
Resumo: The biogeochemical cycling of carbon, water, energy, aerosols, and trace gases in the Amazon Basin was investigated in the project European Studies on Trace Gases and Atmospheric Chemistry as a Contribution to the Large-Scale Biosphere-Atmosphere Experiment in Amazonia (LBA-EUSTACH). We present an overview of the design of the project, the measurement sites and methods, and the meteorological conditions during the experiment. The main results from LBA-EUSTACH are: Eddy correlation studies in three regions of the Amazon Basin consistently show a large net carbon sink in the undisturbed rain forest. Nitrogen emitted by forest soils is subject to chemical cycling within the canopy space, which results in re-uptake of a large fraction of soil-derived NOx by the vegetation. The forest vegetation is both a sink and a source of volatile organic compounds, with net deposition being particularly important for partially oxidized organics. Concentrations of aerosol and cloud condensation nuclei (CCN) are highly seasonal, with a pronounced maximum in the dry (burning) season. High CCN concentrations from biomass burning have a pronounced impact on cloud microphysics, rainfall production mechanisms, and probably on large-scale climate dynamics.
URI: http://repositorio.inpa.gov.br/handle/123/3639
ISSN: 0148-0227
DOI: https://dx.doi.org/10.1029/2001JD000524
Aparece nas coleções:Coordenação de Dinâmica Ambiental (CDAM)

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