Uso de semivariogramas escalonados no planejamento amostral de atributos físicos do solo em ambientes na região sul do Amazonas

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Autor(es): dc.contributorUniversidade do Estado de São Paulo, Departamento de Solos e Fertilizantes-
Autor(es): dc.contributorUniversidade Federal do Amazonas, Instituto de Educação, Agricultura e Ambiente-
Autor(es): dc.creatorde Aquino, Renato Eleotério-
Autor(es): dc.creatorCampos, Milton César Costa-
Autor(es): dc.creatorMarques Junior, José-
Autor(es): dc.creatorde Oliveira, Ivanildo Amorim-
Autor(es): dc.creatorTeixeira, Danie De Bortoli-
Autor(es): dc.creatorda Cunha, José Maurício-
Data de aceite: dc.date.accessioned2022-08-04T22:04:36Z-
Data de disponibilização: dc.date.available2022-08-04T22:04:36Z-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2015-01-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1590/01000683rbcs20150524-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/220348-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/220348-
Descrição: dc.descriptionThere is a great lack of information from soil surveys in the southern part of the State of Amazonas, Brazil. The use of tools such as geostatistics may improve environmental planning, use and management. In this study, we aimed to use scaled semivariograms in sample design of soil physical properties of some environments in Amazonas. We selected five areas located in the south of the state of Amazonas, Brazil, with varied soil uses, such as forest, archaeological dark earth (ADE), pasture, sugarcane cropping, and agroforestry. Regular mesh grids were set up in these areas with 64 sample points spaced at 10 m from each other. At these points, we determined the particle size composition, soil resistance to penetration, moisture, soil bulk density and particle density, macroporosity, microporosity, total porosity, and aggregate stability in water at a depth of 0.00-0.20 m. Descriptive and geostatistical analyses were performed. The sample density requirements were lower in the pasture area but higher in the forest. We concluded that managed-environments had differences in their soil physical properties compared to the natural forest; notably, the soil in the ADE environment is physically improved in relation to the others. The physical properties evaluated showed a structure of spatial dependence with a slight variability of the forest compared to the others. The use of the range parameter of the semivariogram analysis proved to be effective in determining an ideal sample density.-
Descrição: dc.descriptionUniversidade do Estado de São Paulo, Departamento de Solos e Fertilizantes-
Descrição: dc.descriptionUniversidade Federal do Amazonas, Instituto de Educação, Agricultura e Ambiente-
Formato: dc.format21-30-
Idioma: dc.languageen-
Relação: dc.relationRevista Brasileira de Ciencia do Solo-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectPhysical properties-
Palavras-chave: dc.subjectSample density-
Palavras-chave: dc.subjectScaled semivariograms-
Palavras-chave: dc.subjectSpatial variability-
Título: dc.titleUso de semivariogramas escalonados no planejamento amostral de atributos físicos do solo em ambientes na região sul do Amazonas-
Título: dc.titleUse of scaled semivariograms in the planning sample of soil physical properties in southern Amazonas, Brazil-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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