Title:	Soil greenhouse gases emissions in a goat production system in the Brazilian semiarid region.
Authors:	SIGNOR, D. MEDEIROS, T. A. F. MORAES, S. A. de CORREA, L. C. TOMAZI, M. MOURA, M. S. B. de DEON, M. D. I.
Affiliation:	DIANA SIGNOR DEON, CPATSA; THAIANY ARAÚJO FERREIRA MEDEIROS, UNIVASF; SALETE ALVES DE MORAES, CPATSA; LUIZ CLAUDIO CORREA, CPATSA; MICHELY TOMAZI, CPAO; MAGNA SOELMA BESERRA DE MOURA, CPATSA; MAGNUS DALL IGNA DEON, CPATSA.
Date Issued:	2022
Citation:	Pesquisa Agropecuária Tropical, v. 52, e72371, 2022.
Description:	In the climate change scenario, studying greenhouse gases (GHG) emissions and measures of mitigation in the Caatinga biome are strategic and may provide a basis for mitigation plans. This study aimed to evaluate the soil CO2, CH4and N2O fluxes, as well as determining an annual baseline for GHG emissions, in a reference site of silvopastoral production system in the Brazilian semiarid region, in order to provide subsidies for future studies on GHG emissions mitigation. The GHG fluxes were monitored over one year, in a buffel grass pasture and in grazed and native Caatinga areas, which are components of a long-term silvopastoral system. The CO2 fluxes ranged from -19.98 to 179.12 mg m-2 h-1 of CO2-C, CH4 fluxes from -76.21 to 113.87 ?g m-2 h-1 of CH4-C, N2O fluxes from -1,043.12 to 471.37 ?g m-2 h-1 of N2O-N and the soil moisture was the main factor limiting the GHG fluxes. The total emissions converted to CO2-equivalent in the anthropized areas were lower than in the native area (65 % for the buffel grass pasture and 741 % for the grazed Caatinga). Therefore, it is possible to affirm that the GHG soil emissions from grazed areas in the Caatinga biome are not as high as in the native Caatinga, what is an important indication of the environmental sustainability of the evaluated silvopastoral system
Thesagro:	Caprino Efeito Estufa Sistema de Produção Solo Cenchrus ciliaris Pastagem Dióxido de Carbono Metano
NAL Thesaurus:	Goats Carbon dioxide Nitrous oxide Silvopastoral systems
Keywords:	Emissões de gases Semiárido Óxido nitroso Sistema silvipastoril
ISSN:	1983-4063
Type of Material:	Artigo de periódico
Access:	openAccess
Appears in Collections:	Artigo em periódico indexado (CPATSA)