Carbon and nitrogen stocks and organic matter fractions in the topsoil of traditional and agrisilvicultural systems in the Southeast of Brazil

Página do item simplificado
dc.creatorLeidivan Almeida Frazão
dc.creatorPaulo Henrique Cardoso
dc.creatorMaria Nilfa de Almeida Neta
dc.creatorMauro Franco Castro Mota
dc.creatorLuana Larissa de Souza Almeida
dc.creatorJuliana Martins Ribeiro
dc.creatorThaís Ferreira Bicalho
dc.creatorBrigite Josefine Feigl
dc.date.accessioned2023-05-26T22:48:31Z
dc.date.accessioned2025-09-09T00:32:18Z
dc.date.available2023-05-26T22:48:31Z
dc.date.issued2021
dc.identifier.doihttps://doi.org/10.1071/SR20150
dc.identifier.issn1838-675X
dc.identifier.urihttps://hdl.handle.net/1843/54040
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofSoil Research
dc.rightsAcesso Restrito
dc.subjectSolos - Teor de carbono
dc.subjectHumus
dc.subjectAdubação organomineral
dc.subject.otherAgroforestry
dc.subject.otherCarbon storage in soil
dc.subject.otherSoil organic matter
dc.titleCarbon and nitrogen stocks and organic matter fractions in the topsoil of traditional and agrisilvicultural systems in the Southeast of Brazil
dc.typeArtigo de periódico
local.citation.epage805
local.citation.issue8
local.citation.spage794
local.citation.volume59
local.description.resumoThe adoption of conservationist systems can improve the protection of soil organic matter (SOM) and mitigate greenhouse gas emissions. Thus, we aimed to quantify the soil carbon (C) and nitrogen (N) stocks, C content in the SOM fractions and microbial C (Cmic) in the topsoil of an Acrisol under traditional and agrisilvicultural systems in the Southeast of Brazil. The evaluated treatments were native vegetation of Cerrado (NV), pasture of Urochloa brizantha (PAST), monoculture of pigeon pea (MCP), and agrisilvicultural system (Eucalyptus + pigeon pea; AGS). Soil samples were collected at depths of 0–5, 5–10, and 10–20 cm to determine the soil C and N contents and stocks, C associated with granulometric and humic fractions of SOM, and soil Cmic. The C contents in AGS and MCP systems were similar to NV at 5–10 and 10–20 cm, and soil C stocks in AGS were similar to NV and higher than in PAST system at 0–20 cm. We found a higher percentage of protected C in the silt + clay fraction, and the AGS system contributed to an increase in this organomineral fraction at 10–20 cm soil depth. The C contents in the free light fraction (0–5 cm) and humin (5–10 and 10–20 cm) were also similar between AGS and NV, giving greater protection of SOM in both systems. For Cmic and microbial quotient values we found no differences among the evaluated systems. The results indicated that after conversion of NV to different land uses, the AGS system more effectively increased the C stocks in the topsoil and protected the SOM.
local.publisher.countryBrasil
local.publisher.departmentICA - INSTITUTO DE CIÊNCIAS AGRÁRIAS
local.publisher.initialsUFMG
local.url.externahttps://www.publish.csiro.au/SR/SR20150

Arquivos

Licença do pacote

Agora exibindo 1 - 1 de 1
Imagem de Miniatura
Nome:
License.txt
Tamanho:
1.99 KB
Formato:
Plain Text
Descrição:
Baixar

Coleções

Artigo de Periódico

Logo UFMG