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Title: Management techniques for the control of Melinis minutiflora P. Beauv. (molasses grass) : ten years of research on an invasive grass species in the Brazilian Cerrado
Authors: Martins, Carlos Romero
Hay, John Du Vall
Scaléa, Marcio
Malaquias, Juaci Vitória
Assunto:: Fogo
Glifosato
Biomassa
Áreas protegidas
Solos
Issue Date: Oct-2017
Publisher: Sociedade Botânica do Brasil
Citation: MARTINS, Carlos Romero et al. Management techniques for the control of Melinis minutiflora P. Beauv. (molasses grass): ten years of research on an invasive grass species in the Brazilian Cerrado. Acta Botanica Brasilica, Belo Horizonte, v. 31, n. 4, p. 546-554, out./dez. 2017. Disponível em: <http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062017000400546&lng=en&nrm=iso>. Acesso em: 19 fev. 2018. Epub Sep 21, 2017. doi: http://dx.doi.org/10.1590/0102-33062016abb0433.
Abstract: The invasion of exotic species is considered to be a major threat to the preservation of biodiversity. In the Parque Nacional de Brasília (National Park of Brasília), the invasive Melinis minutiflora (molasses grass) occupies more than 10 % of the area of the park. The present, long-term, study compared two treatments of exposure to molasses grass: 1) fire and 2) integrated management (fire + herbicide sprays + manual removal). The aerial biomass of molasses grass in the experimental area initially represented ca. 55 % of the total aerial biomass, a percentage that apparently did not influence native plant species richness at this site. Fire alone was not sufficient to control molasses grass, which attained its pre-treatment biomass values after two years. Integrated management reduced, and maintained, biomass to less than 1 % of its original value after ten years, and maintained this level throughout the study, demonstrating that it is a promising strategy for the recovery of areas invaded by molasses grass in the Cerrado. However, because of the recolonization by molasses grass, long-term monitoring efforts are targeting outbreaks, which would require immediate intervention in order to maintain the native biological diversity of the region.
Licença:: Acta Botanica Brasilica - This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0). Fonte: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062017000400546&lng=en&nrm=iso. Acesso em: 19 fev. 2018.
DOI: http://dx.doi.org/10.1590/0102-33062016abb0433
Appears in Collections:ECO - Artigos publicados em periódicos

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