| Texto completo | |
| Autor(es): |
de Oliveira, Gabriel
[1]
;
Brunsell, Nathaniel A.
[2]
;
Chen, Jing M.
[1]
;
Shimabukuro, Yosio E.
[3]
;
Mataveli, V, Guilherme A.
;
dos Santos, Carlos A. C.
[4]
;
Stark, Scott C.
[5]
;
de Lima, Andre
[6]
;
Aragao, Luiz E. O. C.
[7, 8]
Número total de Autores: 9
|
| Afiliação do(s) autor(es): | [1] Univ Toronto, Dept Geog & Planning, Toronto, ON - Canada
[2] Univ Kansas, Dept Geog & Atmospher Sci, Lawrence, KS - USA
[3] Brazilian Natl Inst Space Res, Earth Observat & Geoinformat Div, Sao Jose Dos Campos - Brazil
[4] Univ Fed Campina Grande, Acad Unit Atmospher Sci, Campina Grande, Paraiba - Brazil
[5] Michigan State Univ, Dept Forestry, E Lansing, MI 48824 - USA
[6] Univ Maryland, Dept Geog Sci, College Pk, MD - USA
[7] Univ Exeter, Coll Life & Environm Sci, Exeter, Devon - England
[8] Mataveli, Guilherme A., V, Brazilian Natl Inst Space Res, Earth Observat & Geoinformat Div, Sao Jose Dos Campos - Brazil
Número total de Afiliações: 8
|
| Tipo de documento: | Artigo Científico |
| Fonte: | JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES; v. 126, n. 5 MAY 2021. |
| Citações Web of Science: | 0 |
| Resumo | |
The ongoing deforestation process in Amazonia has led to intensified forest fires in the region, particularly in Brazil, after more than a decade of effective forest conservation policy. This study aims to investigate the recovery of two mature sub-montane ombrophile Amazonian forests affected by fire in terms of energy, water and carbon fluxes utilizing remote sensing (MODIS) and climate reanalysis data (GLDAS). These two forest plots, mainly composed of Manilkara spp. (Macaranduba), Protium spp. (Breu) (similar to 30 m), Bertholletia excelsa (Castanheira) and Dinizia excelsa Ducke (Angelim-Pedra) (similar to 50 m), occupy areas of 100.5 and 122.1 km(2) and were subject to fire on the same day, on September 12, 2010. The fire significantly increased land surface temperature (0.8 degrees C) and air temperature (1.2 degrees C) in the forests over a 3 years interval. However, the forests showed an ability to recover their original states in terms of coupling between the carbon and water cycles comparing the 3-year periods before and after the fires. Results from a wavelet analysis showed an intensification in annual and seasonal fluctuations, and in some cases (e.g., daily net radiation and evapotrasnspiration) sub-annual fluctuation. We interpreted these changes to be consistent with overall intensification of the coupling of energy balance components and drivers imposed by climate and solar cycle seasonality, as well as faster time scale changes, consistent with a shift toward greater forest openness and consequent reduction in the interception of incoming solar radiation by the canopy. (AU) | |
| Processo FAPESP: | 16/02018-2 - Variação interanual do balanço de gases de efeito estufa na Bacia Amazônica e seus controles em um mundo sob aquecimento e mudanças climáticas – Carbam: estudo de longo termo do balanço do carbono da Amazônia |
| Beneficiário: | Luciana Vanni Gatti |
| Modalidade de apoio: | Auxílio à Pesquisa - Programa de Pesquisa sobre Mudanças Climáticas Globais - Temático |
| Processo FAPESP: | 19/25701-8 - Influência do uso e cobertura da terra na emissão de material particulado fino (PM2,5µm) por queimadas nos biomas Amazônia e Cerrado integrando modelagem e sensoriamento remoto |
| Beneficiário: | Guilherme Augusto Verola Mataveli |
| Modalidade de apoio: | Bolsas no Brasil - Pós-Doutorado |