Flux of methane from the soil in area of forest and pasture in West Pará

Authors

DOI:

https://doi.org/10.5902/2179460X80259

Keywords:

Greenhouse effect, Sink, Emission

Abstract

In the Amazon region studies on greenhouse gases are still carried out with low frequency, so understanding the dynamics and flow of these gases in the region is of great importance. Among these gases is methane, which is the second most concentrated greenhouse gas in the atmosphere. In this context, the objective of this study was to quantify the methane fluxes in primary forest and pasture areas and analyze the seasonal variability of the emission/absorption of this gas, as well as to verify the influence of environmental factors acting on the behavior of methane. The study region was the Municipality of Belterra, Western Pará. To measure the methane fluxes in the soil, static chambers were used with the aid of a greenhouse gas analyzer (Los Gatos Research (LGR-915-0011). The methane flux in the soil in the Flona region averaged -1,499 ± 1.3 mg CH₄ m−2 d−1 and an average of -0.4776 ± 1.21 mg CH₄ m−2 d−1 for the pasture area, positive and negative values ​​were obtained for the different areas, indicating emission and consumption of methane, respectively, in the studied period.

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Author Biographies

Taiane Alves da Silva, Federal University of Alagoas

Bachelor in Atmospheric Sciences from the Federal University of Western Pará

Rafael Corrêa Muniz, Federal University of Western Pará

Graduated in Geology from the Federal University of Western Pará. Master in Environmental Sciences by the Graduate Program in Natural Resources of the Amazon - UFOPA. Currently, studying for a doctorate at the Graduate Program in Society, Nature and Development-UFOPA. Has experience in geology and geochemistry, with emphasis on river biogeochemistry.

Laura dos Santos Lima, Federal University of Western Pará

Undergraduate student in Atmospheric Sciences at the Federal University of Western Pará (UFOPA)

Raphael Pablo Tapajós Silva, Federal University of Western Pará

He holds a degree in Full Degree in Physics from the Federal University of Pará, Santarém (2009), a master's degree (2012) and a doctorate (2017) in Sciences from the Federal University of Western Pará, with a sandwich period at the State University of New York (2016) at Special Visiting Researcher Program (PPVEs-CAPES). He is currently an Adjunct Professor of the Atmospheric Sciences course at the Federal University of Western Pará.

José Mauro Sousa de Moura, Federal University of Western Pará

He is an Adjunct Professor at the Federal University of Western Pará, holds a degree in Full Degree in Biological Sciences and improvement in Science teaching from the Federal University of Pará -UFPA (2000), Master's (2005) in Ecology of Agroecosystems and Doctorate (2010) in Sciences (Chemistry in Agriculture and the Environment) by the Center for Nuclear Energy in Agriculture - CENA. He has experience in the area of ​​biogeochemistry of aquatic and forest ecosystems, with emphasis on flow of organic matter and trace gases (RN-222 and CH4), working mainly on the following topics: use of stable isotopes of Carbon, Nitrogen and Oxygen, flow of gases in rivers, soils and vertical profiles of tropical forests

References

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Cover image V. 45, Especial Edition, 2023. XXII Workshop Brasileiro de Micrometeorologia.

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Published

2023-11-22

How to Cite

Silva, T. A. da, Muniz, R. C., Lima, L. dos S., Silva, R. P. T., & Moura, J. M. S. de. (2023). Flux of methane from the soil in area of forest and pasture in West Pará. Ciência E Natura, 45(esp. 2), e80259. https://doi.org/10.5902/2179460X80259

Issue

Vol. 45 No. esp. 2 (2023): XII Workshop Brasileiro de Micrometeorologia

Section

Special Edition

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