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- Title
Atividade microbiana como indicador de resposta ambiental em área de deposição de resíduo siderúrgico.
- Authors
Pereira de Sousa, Tamyres; Ribeiro dos Anjos, Andressa; do Carmo Rocha, Mateus; Lima de Morais, Hanna Emily; Rangel Albuquerque, Álisson; Pupo Raimam, Milena
- Abstract
The soil is a medium with complex and dynamic properties. It is the result of the integrated effect of climate and living organisms, which act on the source material, conditioned by the relief during a certain period of time. Natural or induced changes are quickly perceived by soil microorganisms, which are highly sensitive to the presence of contaminants, and can be used as bio-indicators of environmental stress. The objective of this study was to evaluate the effects of steel residue (SR) exhaust dust on soil microbial activity. Soil sample collections were carried out in two forest areas located in the municipality of Maraba, Para State (area A free of SR and area B with SR), considering the rainy (2018) and dry (2019) seasons. Microbial activity was determined through basal soil respiration and microbial biomass carbon (MBC), in addition to the metabolic (qCO2) and microbial (qMic) quotients. There was no difference in soil total organic carbon content between areas, but MBC and qMic were lower in area B in the two investigated seasons, demonstrating the contribution of exhaust dust in reducing microbial activity and decreasing soil carbon reserves.
- Subjects
SOIL respiration; SOIL microbiology; MICROBIAL respiration; CARBON in soils; POLLUTANTS
- Publication
Brazilian Journal of Forest Research / Pesquisa Florestal Brasileira, 2022, Vol 42, p1
- ISSN
1809-3647
- Publication type
Article
- DOI
10.4336/2022.pfb.42e202002089