Please use this identifier to cite or link to this item: http://hdl.handle.net/1843/42039
Type: Artigo de Periódico
Title: Greenhouse gas emissions and carbon sequestration by agroforestry systems in southeastern Brazil
Authors: Carlos Moreira Miquelino Eleto Torres
Laércio Antônio Gonçalves Jacovine
Sílvio Nolasco de Olivera Neto
Clyde William Fraisse
Carlos Pedro Boechat Soares
Fernando de Castro Neto
Lino Roberto Ferreira
Jose Cola Zanuncio
Pedro Guilherme Lemes Alves
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.
Subject: Agrosilvicultura
Florestas
Efeito estufa (Atmosfera)
Sequestro de carbono
Biomassa vegetal
language: eng
metadata.dc.publisher.country: Brasil
Publisher: Universidade Federal de Minas Gerais
Publisher Initials: UFMG
metadata.dc.publisher.department: ICA - INSTITUTO DE CIÊNCIAS AGRÁRIAS
Rights: Acesso Aberto
metadata.dc.identifier.doi: 10.1038/s41598-017-16821-4
URI: http://hdl.handle.net/1843/42039
Issue Date: 1-Dec-2017
metadata.dc.url.externa: https://www.nature.com/articles/s41598-017-16821-4.pdf
metadata.dc.relation.ispartof: Scientific Reports
Appears in Collections:Artigo de Periódico



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