Temporal evaluation of soil chemical attributes after slash-and-burn agriculture in the Western Brazilian Amazon

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dc.creatorEduardo Carvalho da Silva Neto
dc.creatorMarcos Gervasio Pereira
dc.creatorElizio Ferreira Frade
dc.creatorSandra Bezerra da Silva
dc.creatorJoão Andrade de Carvalho
dc.creatorJosé Carlos dos Santos
dc.date2019
dc.date.accessioned2026-07-07T03:54:32Z
dc.descriptionIn Amazonia, the main causes of deforestation are systems based on slash-and-burn agriculture. The objective of this work was to evaluate temporal changes in the soil chemical attributes after the vegetation has been slashed and burned in an area of native forest in the Western Amazon. For this study, four hectares of forest in Cruzeiro do Sul, State of Acre, Brazil, was slashed and burned. The soil in the study area was classified as Ultisol (Argissolo Amarelo Distrófico típico). Soil samples were collected over the course of one year, the first one being collected 16 hours after the burn and the others at 30, 60, 90, 150, 210, 270, and 360 days after the burn. The soil surface layers were more sensitive to fire action. Ashes from vegetation burn increased pH values, basic cations, and C values only in the first months, resulting in higher basal saturation values (V%). The practice of slash-and-burn after 12 months resulted in lower values of pH, Ca, Mg, K, and P and higher values of Al and H, as well as saturation by aluminum in the soil, indicating this practice contributes to the reduction of soil fertility.
dc.formatapplication/pdf
dc.identifier1679-9275
dc.identifierhttps://www.redalyc.org/articulo.oa?id=303060470043
dc.identifierhttps://www.redalyc.org/journal/3030/303060470043/
dc.identifierhttps://www.redalyc.org/journal/3030/303060470043/html/
dc.identifierhttps://www.redalyc.org/journal/3030/303060470043/303060470043.epub
dc.identifierhttps://www.redalyc.org/journal/3030/303060470043/movil
dc.identifier10.4025/actasciagron.v41i1.42609
dc.identifier.urihttp://hdl.handle.net/123456789/446991
dc.languageen
dc.publisherUniversidade Estadual de Maringá
dc.relationhttp://www.redalyc.org/revista.oa?id=3030
dc.rightsActa Scientiarum. Agronomy
dc.sourceActa Scientiarum. Agronomy (Brasil) Vol.41
dc.subjectAgrociencias
dc.titleTemporal evaluation of soil chemical attributes after slash-and-burn agriculture in the Western Brazilian Amazon
dc.typeartículo científico

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Acta Scientiarum. Agronomy - Universidade Estadual de Maringá