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Title: Post-fire dynamics of the woody vegetation of a savanna forest (Cerradão) in the Cerrado-Amazon transition zone
Authors: Reis, Simone Matias
Lenza, Eddie
Marimon, Beatriz Schwantes
Gomes, Letícia
Forsthofer, Mônica
Morandi, Paulo Sérgio
Marimon Junior, Ben Hur
Feldpausch, Ted R.
Elias, Fernando
Assunto:: Conservação
Solo - uso
Mortalidade
Incêndios
Issue Date: Jul-2015
Publisher: Sociedade Botânica do Brasil
Citation: REIS, Simone Matias et al. Post-fire dynamics of the woody vegetation of a savanna forest (Cerradão) in the Cerrado-Amazon transition zone. Acta Botanica Brasilica, Belo Horizonte, v. 29, n. 3, p. 408-416, jul./set. 2015. Disponível em: <http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062015000300408&lng=en&nrm=iso>. Acesso em: 18 abr. 2018. doi: http://dx.doi.org/10.1590/0102-33062015abb0009.
Abstract: Fire can change the species composition, diversity, and structure of savanna vegetation, thus altering growth and mortality rates. Such changes in the woody vegetation of burned savanna forest were evaluated over four years in comparison to unburned savanna forest. All woody plants with a diameter at breast height > 10 cm were measured in 100 permanent plots. Six months later, 38 of these plots were burned. Three and a half years later, all surviving individuals were re-sampled. Species richness, diversity, and the number of individuals did not change in the burned plots, although they had significantly higher (p < 0.05) increases in basal area and mortality rates (5.1% year-1) than the unburned plots (3.0% year-1).Tachigali vulgarishad the greatest post-fire increase in basal area (53%). The results indicate that fire alters the dynamics and structure of the savanna forest, excluding the less fire-tolerant species and smaller individuals (? 15cm). Tachigali vulgaris is a key species for the recovery of savanna forest biomass due to its considerable post-fire gains in basal area, at least over the short term due to its short life cycle. It follows that frequent burning of savanna forest would result in a marked change in the species composition and structure of its woody vegetation.
Licença:: Acta Botanica Brasilica - This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY NC 4.0). Fonte: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062015000300408&lng=en&nrm=iso. Acesso em: 18 abr. 2018.
DOI: http://dx.doi.org/10.1590/0102-33062015abb0009
Appears in Collections:ECL - Artigos publicados em periódicos

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