Is it feasible to relate CO2 atmospheric measurements with land use and cover change data?
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2020
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EGU General Assembly
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Atmospheric CO2 concentrations have had a significant increase in recent years reaching levels
never seen before. In the Amazon region, the main CO2 emissions come from land use and cover
change (LUCC), especially for the deforestation of natural forests. It is very important to
understand the impacts of climate change and deforestation on the Amazon forests to understand
their role in the current carbon balance at different scales. The lower-troposphere greenhouse gas
(GHG) monitoring program “CARBAM project”, has been collecting bimonthly GHGs vertical profiles
in four sites of the Amazon since 2010, filling a very important gap in regional GHGs
measurements. Here we compare different LUCC datasets for the Amazon region to see if there is
a relation between annual LUCC and bimonthly CO2 aircraft measurements in the Amazon. We
compared the annual (2010-2018) LUCC area from IBGE, PRODES and mapbiomas pan-amazon
datasets for each mean influence area of the CARBAM sites and relate this LUCC areas with the
annual CO2 fluxes. We found differences in the classification methods of the LUCC data, showing
differences in the total deforested area. The LUCC data have different tendencies in each CARBAM
influence area having more deforestation in the east side of the Amazon CARBAM sites. There is
no clear trend between LUCC and carbon fluxes in the last 8 years. Inter-annual CO2 fluxes
variability could be related with the several droughts that influence the
photosynthesis/respiration. Here we highlight the scale issues regarding LUCC datasets,
atmospheric CO2 measurements and CO2 modeling to better understand the current Amazon
carbon balance.
Como referenciar
TEJADA, GRACIELA; GATTI, LUCIANA; BASSO, LUANA; MARANI, LUCIANO; CASSOL, HENRIQUE; ARAI, EGIDIO; ARAGAO, LUIZ; CRISPIM, STEPHANE; NEVES, RAIANE; DOMINGUES, LUCAS; CORREIA, CAIO; IPIA, ALBER; GLOOR, MANUEL; MILLER, JOHN; VON RANDOW, CELSO. Is it feasible to relate CO2 atmospheric measurements with land use and cover change data?: A primary assessment of land use and cover change datasets in the Amazon. In: EGU General Assembly, May 4-8, 2020, Online. Abstract... Göttingen, Germany: Copernicus, 2020. Disponível em: http://200.136.52.105/handle/123456789/31677. Acesso em: 30 Dec 2025.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.