Agrosilvopastoral systems and well-managed pastures increase soil carbon stocks in the brazilian cerrado

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dc.creatorIgor Costa de Freitas
dc.creatorJuliana Martins Ribeiro
dc.creatorNayara Christina Almeida Araújo
dc.creatorMarcia Vitória Santos
dc.creatorRegynaldo Arruda Sampaio
dc.creatorLuiz Arnaldo Fernandes
dc.creatorAlcinei Místico Azevedo
dc.creatorBrigitte Josefine Feigl
dc.creatorCarlos Eduardo Pellegrino Cerri
dc.creatorLeidivan Almeida Frazão
dc.date.accessioned2022-06-09T15:37:59Z
dc.date.accessioned2025-09-09T01:15:16Z
dc.date.available2022-06-09T15:37:59Z
dc.date.issued2020-11
dc.description.sponsorshipOutra Agência
dc.identifier.doihttps://doi.org/10.1016/j.rama.2020.08.001
dc.identifier.issn1550-7424
dc.identifier.urihttps://hdl.handle.net/1843/42395
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofRangeland Ecology and Management
dc.rightsAcesso Aberto
dc.subjectEcologia agrícola
dc.subjectAgrossilvicultura
dc.subjectPecuária
dc.subjectPastagens - Manejo
dc.subjectSolos - Qualidade
dc.subjectMatéria orgânica
dc.subjectEcologia dos cerrados
dc.subject.other13C abundance integrated production system
dc.subject.otherN stockss
dc.subject.otherAgroecology
dc.titleAgrosilvopastoral systems and well-managed pastures increase soil carbon stocks in the brazilian cerrado
dc.typeArtigo de periódico
local.citation.epage785
local.citation.issue6
local.citation.spage776
local.citation.volume73
local.description.resumoAgrosilvopastoral systems have been promoted as sustainable models that combine crops, livestock grazing, and forestry in the same area. We hypothesize that agrosilvopastoral systems can improve soil C and N stocks over time. Therefore, in this study, we aimed to evaluate the changes in soil C and N stocks after conversion of low-productivity pasture into well-managed pasture and agrosilvopastoral land in the Brazilian Cerrado. Soil samples were collected in 2016 and 2018 at 0–5, 5–10, 10–20, and 20–30 cm depths from the following areas: integrated crop-livestock-forest (ICLF), marandu grass (Brachiaria brizantha) monoculture (MAR), low productivity pasture of signal grass (Brachiaria decumbens) monoculture (PAST), and native vegetation (NV; “Cerrado”). The C and N content and stocks, 13C natural abundance, and C contents in the physical and chemical fractions of soil organic matter (SOM) were measured. The ICLF and MAR systems promoted faster recovery of soil C and N stocks at all soil depths compared with PAST. The C content of the free light fraction of SOM under the ICLF and MAR systems increased, reaching values similar to NV up to 20 cm. The C content was higher in the humin fraction at all depths in all areas, and for this measurement, the ICLF system performed remarkably compared with PAST at a depth of 5–10 cm. Our findings support the hypothesis that conversion of low-productivity pasture into agrosilvopastoral and actively managed pasture systems leads to improvements in soil quality and C and N stocks in the Brazilian Cerrado.
local.publisher.countryBrasil
local.publisher.departmentICA - INSTITUTO DE CIÊNCIAS AGRÁRIAS
local.publisher.initialsUFMG
local.url.externahttps://bioone.org/journals/rangeland-ecology-and-management/volume-73/issue-6/j.rama.2020.08.001/Agrosilvopastoral-Systems-and-Well-Managed-Pastures-Increase-Soil-Carbon-Stocks/10.1016/j.rama.2020.08.001.full

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