Spatial variability of physical attributes and soil aggregates in archaeological dark dirt under pasture

dc.contributor.authorSoares, Marcelo Dayron Rodrigues
dc.contributor.authorCampos, Milton César Costa
dc.contributor.authorDa Cunha, José Maurício
dc.contributor.authorDe Souza, Zigomar Menezes
dc.contributor.authorDe Oliveira, Ivanildo Amorim [UNESP]
dc.contributor.authorDe Aquino, Renato Eleotério [UNESP]
dc.contributor.authorMantovanelli, Bruno Campos
dc.contributor.authorOliveira, Ludimila Souza
dc.contributor.institutionUniversidade Federal do Amazonas (UFAM)
dc.contributor.institutionUniversidade Estadual de Campinas (UNICAMP)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade Federal Rural de Pernambuco (UFRPE)
dc.date.accessioned2019-10-06T15:37:50Z
dc.date.available2019-10-06T15:37:50Z
dc.date.issued2018-01-01
dc.description.abstractSome areas of archaeological dark dirt in the Amazon have been used with pasture that has generated great concern regarding changes in soil physical attributes and its aggregation state. The objective of this study was to evaluate the spatial variability and possible modifications of soil physical and aggregate attributes in archaeological black dirt under pasture. A grid of 80 x 56m with 88 sampling points distributed in 8 x 8m were marked. Soil layers at 0-0.05, 0.05-0.10, and 0.10-0.20m were analyzed for: soil density (SD), total organic carbon (TOC), carbon stock (C stock), meanweight diameter (MWD), macroporosity (Macro), microporosity (Micro), and total porosity (TP). From semivariograms tests it was verified the occurrence of spatial dependence. Even with major pasture cover in the study area it was observed that the values of Ds, Macro, and VTP were above or below the reference values, which may cause restriction for root growth of plants and water infiltration in the soil. The DMP and Ds were COT-dependent because values of both increase or decrease depending on the soil layer. When higher the soil layer there was an increase in carbon stock.en
dc.description.affiliationInstituto de Educação Agricultura e Ambiente (IEAA) Universidade Federal do Amazonas (UFAM)
dc.description.affiliationFaculdade de Engenharia Agrícola Universidade Estadual de Campinas (UNICAMP)
dc.description.affiliationUniversidade Estadual Paulista “Júlio de Mesquita Filho” (UNESP)
dc.description.affiliationDepartamento de Agronomia (DEPA) Universidade Federal Rural de Pernambuco (UFRPE)
dc.description.affiliationUnespUniversidade Estadual Paulista “Júlio de Mesquita Filho” (UNESP)
dc.identifierhttp://dx.doi.org/10.4136/ambi-agua.2002
dc.identifier.citationRevista Ambiente e Agua, v. 13, n. 6, 2018.
dc.identifier.doi10.4136/ambi-agua.2002
dc.identifier.fileS1980-993X2018000600313.pdf
dc.identifier.issn1980-993X
dc.identifier.scieloS1980-993X2018000600313
dc.identifier.scopus2-s2.0-85063488568
dc.identifier.urihttp://hdl.handle.net/11449/187494
dc.language.isopor
dc.relation.ispartofRevista Ambiente e Agua
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectGeostatistics
dc.subjectManagement
dc.subjectSoil structure
dc.titleSpatial variability of physical attributes and soil aggregates in archaeological dark dirt under pastureen
dc.titleVariabilidade espacial do estoque de carbono e atributos físicos do solo em terra preta arqueológica sob pastagempt
dc.typeArtigo

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