CO2 exchange in natural pastures of the Pampa biome raising beef cattle under rotational management




Flux tower, Carbon balance, Pampa biome


The relationship between food production and the preservation of the environment has become a topic of international debate, mainly related to greenhouse gas emissions. In this way, it became increasingly important to know potential sources and sinks of these gases, mainly evaluating the carbon balance in the area of agriculture and livestock. In Rio Grande do Sul, agricultural activity is extremely important culturally and economically, occupying a large part of the state, mainly within the Pampa biome, which has large areas of natural pastures capable of serving as fodder for animals. In this work, we quantified the exchange of CO2 through the Eddy Covariance methodology in two experimental sites of native pasture of the Pampa biome used for cattle raising, in the rotating system, which aims to maintain the diversity of the native pasture. With one-year data we showed that both sites were CO2 sinks, ranging from -82,4 g C m-2 a-1 to -282,3 g C m-2 a-1, due to differences in environmental conditions and vegetation composition. Thus, raising cattle on the natural pasture of the pampa biome can contribute to offsetting greenhouse gas emissions in other agricultural sectors.


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Author Biographies

Alecsander Mergen, Universidade Federal de Santa Maria

Physicist, Master in Physics

Gustavo Pujol Veeck, Universidade Federal de Santa Maria

Physicist, PhD in Physics

Valério de Patta Pillar, Federal University of Rio Grande do Sul

Agronomist, PhD in Plant Sciences

Rodrigo Baggio, Federal University of Rio Grande do Sul

Agronomist Engineer, PhD in Ecology

Fernando Luiz Ferreira de Quadros, Universidade Federal de Santa Maria

Agronomist, PhD in Animal Science

Luciana Marin, Universidade Federal de Santa Maria

Zootechnician, Master in Zootechnics

Vanessa de Arruda Souza, Universidade Federal de Santa Maria

Meteorologist, PhD in Remote Sensing

Michel Baptistella Stefanello, Universidade Federal de Santa Maria

Physicist, PhD in Physics

Maria Eduarda Oliveira Pinheiro, Universidade Federal de Santa Maria

Physics, PhD in Physics

Daniele Morgenstern Aimi, Universidade Federal de Santa Maria

Physics, PhD in Physics

Débora Regina Roberti, Universidade Federal de Santa Maria

Physics, PhD in Physics


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How to Cite

Mergen, A., Veeck, G. P., Pillar, V. de P., Baggio, R., Quadros, F. L. F. de, Marin, L., Souza, V. de A., Stefanello, M. B., Pinheiro, M. E. O., Aimi, D. M., & Roberti, D. R. (2023). CO2 exchange in natural pastures of the Pampa biome raising beef cattle under rotational management. Ciência E Natura, 45(esp. 2), e81293.

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