Use este identificador para citar ou linkar para este item: https://locus.ufv.br//handle/123456789/16562
Tipo: Artigo
Título: Greenhouse gas emissions and carbon sequestration by agroforestry systems in southeastern Brazil
Autor(es): Torres, Carlos Moreira Miquelino Eleto
Jacovine, Laércio Antônio Gonçalves
Olivera Neto, Sílvio Nolasco de
Fraisse, Clyde William
Soares, Carlos Pedro Boechat
Castro Neto, Fernando de
Ferreira, Lino Roberto
Zanuncio, José Cola
Lemes, Pedro Guilherme
Abstract: Agrosilvopastoral and silvopastoral systems can increase carbon sequestration, offset greenhouse gas (GHG) emissions and reduce the carbon footprint generated by animal production. The objective of this study was to estimate GHG emissions, the tree and grass aboveground biomass production and carbon storage in different agrosilvopastoral and silvopastoral systems in southeastern Brazil. The number of trees required to offset these emissions were also estimated. The GHG emissions were calculated based on pre-farm (e.g. agrochemical production, storage, and transportation), and on-farm activities (e.g. fertilization and machinery operation). Aboveground tree grass biomass and carbon storage in all systems was estimated with allometric equations. GHG emissions from the agroforestry systems ranged from 2.81 to 7.98 t CO2e ha−1. Carbon storage in the aboveground trees and grass biomass were 54.6, 11.4, 25.7 and 5.9 t C ha−1, and 3.3, 3.6, 3.8 and 3.3 t C ha−1 for systems 1, 2, 3 and 4, respectively. The number of trees necessary to offset the emissions ranged from 17 to 44 trees ha−1, which was lower than the total planted in the systems. Agroforestry systems sequester CO2 from the atmosphere and can help the GHG emission-reduction policy of the Brazilian government.
Palavras-chave: Greenhouse gas
Agroforestry systems
Editor: Scientific Reports
Tipo de Acesso: Open Access
URI: http://dx.doi.org/10.1038/s41598-017-16821-4
http://www.locus.ufv.br/handle/123456789/16562
Data do documento: 1-Dez-2017
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