Soil organic matter dynamics and land-use change on Oxisols in the Cerrado, Brazil

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.creatorGmach, Maria-Regina-
Autor(es): dc.creatorDias, Bruno O.-
Autor(es): dc.creatorSilva, Carlos A.-
Autor(es): dc.creatorNóbrega, Júlio C. A.-
Autor(es): dc.creatorLustosa-Filho, José F.-
Autor(es): dc.creatorSiqueira-Neto, Marcos-
Data de aceite: dc.date.accessioned2026-02-09T11:19:25Z-
Data de disponibilização: dc.date.available2026-02-09T11:19:25Z-
Data de envio: dc.date.issued2019-02-25-
Data de envio: dc.date.issued2019-02-25-
Data de envio: dc.date.issued2018-09-
Fonte completa do material: dc.identifierhttps://repositorio.ufla.br/handle/1/33040-
Fonte completa do material: dc.identifierhttps://www.sciencedirect.com/science/article/pii/S2352009417302626#!-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1138434-
Descrição: dc.descriptionLand-use change (LUC) from native vegetation to feedstock production is the main responsible for the losses of carbon (C) from soil organic matter (SOM) to atmosphere. We evaluated different land-uses common in the Cerrado with potential to restore SOM levels. We sampled soil (0.0–0.1; 0.1–0.2; 0.2–0.3; 0.3–0.4 m) from sites located in the municipality of Uruçuí (Piauí State, Northeast region of Brazil). Land-uses evaluated were: i) native vegetation (NV); ii) no-tillage over six years (NT6); iii) no-tillage over nine years (NT9); iv) Urochloa brizantha pasture over two years (PA2); v) U. brizantha pasture over six years (PA6); vi) Eucalyptus urophylla afforestation over six years (EU6); and vii) E. urophylla afforestation over twelve years (EU12). We determined soil C stocks, chemical (fulvic and humic acids) and physical (particulate and organic-mineral complexes) SOM fractions. Pasture was land-use that presented better results in terms to maintain C pools (recalcitrant and labile), consequently could restore soil C stocks. The no-tillage, due to the high difference between the results for the adoption times, was difficult to have an accurate interpretation if is effectively increasing the C stocks. On the other hand, Eucalyptus afforestation does not seem to be an efficient land-use when it comes to the restoration of SOM levels, at least under the current management practices as well as the soil and climatic conditions in the Cerrado.-
Idioma: dc.languageen-
Publicador: dc.publisherElsevier-
Direitos: dc.rightsrestrictAccess-
???dc.source???: dc.sourceGeoderma Regional-
Palavras-chave: dc.subjectLand-use change-
Palavras-chave: dc.subjectSoil organic matter-
Palavras-chave: dc.subjectXanthic ferralsols-
Palavras-chave: dc.subjectSoil carbon-
Palavras-chave: dc.subjectNo-tillage system-
Palavras-chave: dc.subjectEucalyptus afforestation-
Palavras-chave: dc.subjectMudança no uso da terra-
Palavras-chave: dc.subjectCarbono do solo-
Palavras-chave: dc.subjectSistema plantio direto-
Palavras-chave: dc.subjectMatéria orgânica do solo-
Palavras-chave: dc.subjectReflorestamento de eucaliptos-
Título: dc.titleSoil organic matter dynamics and land-use change on Oxisols in the Cerrado, Brazil-
Tipo de arquivo: dc.typeArtigo-
Aparece nas coleções:Repositório Institucional da Universidade Federal de Lavras (RIUFLA)

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