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Title: Potential carbon sequestration in rubber tree plantations in the northwestern region of the Paraná State, Brazil
Potencial de sequestro de carbono em seringais no noroeste do Paraná, Brasil
Authors: Maggiotto, Selma Regina
Oliveira, Dalziza de
Marur, Celso Jamil
Stivari, Sonia Maria Soares
Leclerc, Monique
Wagner-Riddle, Claudia
Assunto:: Seringueira
Razão isotópica
Estoque de carbono
Issue Date: 2014
Publisher: Editora da Universidade Estadual de Maringá - EDUEM
Citation: Maggiotto, S. R. et al. Potential carbon sequestration in rubber tree plantations in the northwestern region of the Paraná State, Brazil. Acta Scientiarum Agronomy, v. 36, n. 2, p. 239-245, 2014. DOI: https://doi.org/10.4025/actasciagron.v36i2.17404. Disponível em: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1807-86212014000200014. Acesso em: 16 out. 2019.
Abstract: O plantio de seringueiras é uma opção para melhorar as propriedades físicas e químicas do solo e promover o sequestro de carbono atmosférico, seja na biomassa ou no solo. Apesar das vantagens, o potencial de sequestro de carbono dos seringais no solo e na biomassa não foi ainda avaliado. Um estudo foi conduzido em seringais localizados em Paranapoema, na região noroeste do Paraná, com os objetivos de medir a biomassa em seringais de diferentes idades, e determinar o conteúdo de carbono e o δ13C do solo. O acúmulo de biomassa foi avaliado pelo método destrutivo em seringais de diferentes idades. O estoque total de carbono até 60 cm do solo foi de 63,4 Mg C ha-1 na pastagem adjacente aos seringais, 66,8 e 79,3 Mg C ha-1 nos seringais de 4 e 15 anos de idade, respectivamente, equivalendo a uma taxa anual de aumento de carbono no solo de 0,85 e 1,06 Mg ha-1, sem considerar o acúmulo de carbono pela biomassa da planta. Os valores de δ13C do solo indicaram uma conversão relativamente rápida do carbono proveniente de plantas C4 (pastagem, Brachiaria-Urochloa brizantha) para carbono de plantas C3 (seringal). Os resultados deste estudo indicam o grande potencial de seringais em sequestrar carbono em um período relativamente curto.
Abstract: Rubber tree plantations may improve the soil's physical and chemical properties, and they may sequester atmospheric carbon in the biomass or the soil. However, the potential role of these plantations in sequestering carbon in the soil and plant biomass has not been fully evaluated. This study evaluated rubber tree plantations at Paranapoema, which is located in the northwestern region of the Paraná state of Brazil, to measure the biomass in plantations of different ages and to determine the organic carbon content and δ13C in the soils. Biomass accumulation was evaluated using the destructive method in plantations of different ages. The total carbon stock in the top 60 cm of the soil was 63.4 Mg C ha-1 for the pasture adjacent to the plantations and 66.8 and 79.3 Mg C ha-1 for the 4- and 15-year-old rubber tree plantations, respectively. These values are equivalent to an annual increase in soil carbon stocks of 0.85 and 1.06 Mg ha-1, respectively, and they do not include the accumulation of carbon as tree woody biomass. The soil δ13C indicated a relatively fast conversion from the previous C4-C (pasture; Brachiaria-Urochloa brizantha) to C3-C (rubber tree). The results from this study suggest that rubber tree plantations have untapped potential to sequester carbon over a relatively short time period.
metadata.dc.description.unidade: Faculdade de Agronomia e Medicina Veterinária (FAV)
Licença:: License information: This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cite.
DOI: https://dx.doi.org/10.4025/actasciagron.v36i2.17404
Appears in Collections:Artigos publicados em periódicos e afins

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