| Texto completo | |
| Autor(es): Mostrar menos - |
Franco, Marco A.
;
Rizzo, Luciana V.
;
Teixeira, Marcio J.
;
Artaxo, Paulo
;
Azevedo, Tasso
;
Lelieveld, Jos
;
Nobre, Carlos A.
;
Pohlker, Christopher
;
Poschl, Ulrich
;
Shimbo, Julia
;
Xu, Xiyan
;
Machado, Luiz A. T.
Número total de Autores: 12
|
| Tipo de documento: | Artigo Científico |
| Fonte: | NATURE COMMUNICATIONS; v. 16, n. 1, p. 10-pg., 2025-09-02. |
| Resumo | |
The Amazon rainforest is one of Earth's most diverse ecosystems, playing a key role in maintaining regional and global climate stability. However, recent changes in land use, vegetation, and the climate have disrupted biosphere-atmosphere interactions, leading to significant alterations in the water, energy, and carbon cycles. These disturbances have far-reaching consequences for the entire Earth system. Here, we quantify the relative contributions of deforestation and global climate change to observed shifts in key Amazonian climate parameters. We analyzed long-term atmospheric and land cover change data across 29 areas in the Brazilian Legal Amazon from 1985 to 2020, using parametric statistical models to disentangle the effects of forest loss and alterations of temperature, precipitation, and greenhouse gas mixing ratios. While the rise in atmospheric methane (CH4) and carbon dioxide (CO2) mixing ratios is primarily driven by global emissions (>99%), deforestation has significantly increased surface air temperatures and reduced precipitation during the Amazonian dry season. Over the past 35 years, deforestation has accounted for approximately 74% of the similar to 21 mm dry season(-1) decline and 16.5% of the 2 degrees C rise in maximum surface air temperature. Understanding the interplay between global climate change and deforestation is essential for developing effective mitigation and adaptation strategies to preserve this vital ecosystem. (AU) | |
| Processo FAPESP: | 21/12954-5 - Gases de efeito estufa na Amazônia: integração de dados de diferentes plataformas de observação e investigação de relações com fatores ambientais |
| Beneficiário: | Márcio José Teixeira |
| Modalidade de apoio: | Bolsas no Brasil - Pós-Doutorado |
| Processo FAPESP: | 20/15230-5 - Centro de Pesquisa e Inovação de Gases de Efeito Estufa - RCG2I |
| Beneficiário: | Julio Romano Meneghini |
| Modalidade de apoio: | Auxílio à Pesquisa - Programa Centros de Pesquisa Aplicada |
| Processo FAPESP: | 22/07974-0 - Efeitos sinergéticos das mudanças climáticas e do uso do solo nas fontes e sumidouros de carbono na Amazônia |
| Beneficiário: | Luiz Augusto Toledo Machado |
| Modalidade de apoio: | Auxílio à Pesquisa - Programa de Pesquisa sobre Mudanças Climáticas Globais - Temático |
| Processo FAPESP: | 21/13610-8 - Sensoriamento remoto de gases do efeito estufa, poluentes atmosféricos e aerossóis na Amazônia |
| Beneficiário: | Marco Aurélio de Menezes Franco |
| Modalidade de apoio: | Bolsas no Brasil - Pós-Doutorado |