Data/hora: 03/06/2024 16:34:26

Biblioteca(s): | Embrapa Amazônia Oriental.
Tipo da produção científica: | Artigo em Periódico Indexado
Circulação/Nível: | A - 1
Data corrente: | 12/03/2019
Data da última atualização: | 27/12/2019
Autoria: | BERENGUER, E.; MALHI, Y.; BRANDO, P.; CORDEIRO, A. C. N.; FERREIRA, J. N.; FRANÇA, F.; ROSSI, L. C.; SEIXAS, M. M. M. de; BARLOW, J.
Afiliação: | Erika Berenguer, University of Oxford / Lancaster University; Yadvinder Malhi, University of Oxford; Paulo Brando, The Woods Hole Research Center / Instituto de Pesquisa Ambiental da Amazônia; Amanda Cardoso Nunes Cordeiro, UFPA; JOICE NUNES FERREIRA, CPATU; Filipe França, Lancaster University / CPATU / IFMG; Liana Chesini Rossi, UNESP; Marina Maria Moraes de Seixas, COLABORADORA CPATU; Jos Barlow, Lancaster University / MPEG.
Título: | Tree growth and stem carbon accumulation in human-modified Amazonian forests following drought and fire.
Ano de publicação: | 2018
Fonte/Imprenta: | Philosophical Transactions of the Royal Society B, v. 373, n. 1760, p. 1-8, Nov. 2018.
DOI: | 10.1098/rstb.2017.0308
Idioma: | Inglês
Conteúdo: | Human-modified forests are an ever-increasing feature across the Amazon Basin, but little is known about how stem growth is influenced by extreme climatic events and the resulting wildfires. Here we assess for the first time the impacts of human-driven disturbance in combination with El Niño?mediated droughts and fires on tree growth and carbon accumulation. We found that after 2.5 years of continuous measurements, there was no difference in stem carbon accumulation between undisturbed and human-modified forests. Furthermore, the extreme drought caused by the El Niño did not affect carbon accumulation rates in surviving trees. In recently burned forests, trees grew significantly more than in unburned ones, regardless of their history of previous human disturbance. Wood density was the only significant factor that helped explain the difference in growth between trees in burned and unburned forests, with low wood?density trees growing significantly more in burned sites. Our results suggest stem carbon accumulation is resistant to human disturbance and one-off extreme drought events, and it is stimulated immediately after wildfires. However, these results should be seen with caution?without accounting for carbon losses, recruitment and longer-term changes in species composition, we cannot fully understand the impacts of drought and fire in the carbon balance of human-modified forests.
Thesagro: | Árvore; Carbono; Crescimento; Floresta.
Categoria do assunto: | K Ciência Florestal e Produtos de Origem Vegetal
Registro original: | Embrapa Amazônia Oriental (CPATU)
Exemplares: | CPATU - (55730-1) - UPC - AP - DD -  -  -  - DIS