Número de amostras na análise geoestatística e na krigagem de mapas de atributos do solo

Detalhes bibliográficos
Autor(a) principal: de Souza, Zigomar Menezes
Data de Publicação: 2014
Outros Autores: de Souza, Gustavo Soares, Marques, José [UNESP], Pereira, Gener Tadeu [UNESP]
Tipo de documento: Artigo
Idioma: eng
por
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1590/S0103-84782014000200011
http://hdl.handle.net/11449/177184
Resumo: The objective of this study was to analyze different intensities of soil sampling for accuracy in geostatistical analysis and interpolation maps for precision agriculture in the sugarcane area. Soil samples were collected at two regular grids at a depth of 0.00 to 0.20m for granulometric analysis (area 1) and soil fertility (area 2). We compared soil sampling intensities: 208, 105, 58 and 24 points in Area 1 and 206, 102 and 53 points in Area 2. The data were submitted to descriptive analysis and geostatistics. The variograms constructed with 105 points didn't differ from variograms with 208 points, which doesn't occur for 58 and 24 points. The increase of sampling interval and reducing the number of points promote greater error in kriging. Samples with more than 100 points per area did not result in significant improvements in the error of kriging, or differed in the amount of fertilizer applied to the field.
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spelling Número de amostras na análise geoestatística e na krigagem de mapas de atributos do soloNumber of samples in geostatistical analysis and kriging maps of soil propertiesInterpolationSaccharum officinarumSpatial variabilityVariogramsThe objective of this study was to analyze different intensities of soil sampling for accuracy in geostatistical analysis and interpolation maps for precision agriculture in the sugarcane area. Soil samples were collected at two regular grids at a depth of 0.00 to 0.20m for granulometric analysis (area 1) and soil fertility (area 2). We compared soil sampling intensities: 208, 105, 58 and 24 points in Area 1 and 206, 102 and 53 points in Area 2. The data were submitted to descriptive analysis and geostatistics. The variograms constructed with 105 points didn't differ from variograms with 208 points, which doesn't occur for 58 and 24 points. The increase of sampling interval and reducing the number of points promote greater error in kriging. Samples with more than 100 points per area did not result in significant improvements in the error of kriging, or differed in the amount of fertilizer applied to the field.Universidade Estadual de Campinas (UNICAMP), Avenida Candido Rondon, 501, 13083-875, Campinas, SPCentro Regional de Desenvolvimento Rural Centro Norte (CRDR) Instituto Capixaba de Pesquisa Assistência Técnica e Extensão Rural (INCAPER), Linhares, ESUniversidade Estadual Paulista 'Júlio de Mesquita Filho' (UNESP), Jaboticabal, SPUniversidade Estadual Paulista 'Júlio de Mesquita Filho' (UNESP), Jaboticabal, SPUniversidade Estadual de Campinas (UNICAMP)Assistência Técnica e Extensão Rural (INCAPER)Universidade Estadual Paulista (Unesp)de Souza, Zigomar Menezesde Souza, Gustavo SoaresMarques, José [UNESP]Pereira, Gener Tadeu [UNESP]2018-12-11T17:24:23Z2018-12-11T17:24:23Z2014-02-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article261-268http://dx.doi.org/10.1590/S0103-84782014000200011Ciencia Rural, v. 44, n. 2, p. 261-268, 2014.0103-84781678-4596http://hdl.handle.net/11449/17718410.1590/S0103-84782014000200011S0103-847820140002000112-s2.0-84893964177S0103-84782014000200011.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengporCiencia Rural0,337info:eu-repo/semantics/openAccess2024-06-06T13:42:02Zoai:repositorio.unesp.br:11449/177184Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T14:17:41.638821Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Número de amostras na análise geoestatística e na krigagem de mapas de atributos do solo
Number of samples in geostatistical analysis and kriging maps of soil properties
title Número de amostras na análise geoestatística e na krigagem de mapas de atributos do solo
spellingShingle Número de amostras na análise geoestatística e na krigagem de mapas de atributos do solo
de Souza, Zigomar Menezes
Interpolation
Saccharum officinarum
Spatial variability
Variograms
title_short Número de amostras na análise geoestatística e na krigagem de mapas de atributos do solo
title_full Número de amostras na análise geoestatística e na krigagem de mapas de atributos do solo
title_fullStr Número de amostras na análise geoestatística e na krigagem de mapas de atributos do solo
title_full_unstemmed Número de amostras na análise geoestatística e na krigagem de mapas de atributos do solo
title_sort Número de amostras na análise geoestatística e na krigagem de mapas de atributos do solo
author de Souza, Zigomar Menezes
author_facet de Souza, Zigomar Menezes
de Souza, Gustavo Soares
Marques, José [UNESP]
Pereira, Gener Tadeu [UNESP]
author_role author
author2 de Souza, Gustavo Soares
Marques, José [UNESP]
Pereira, Gener Tadeu [UNESP]
author2_role author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual de Campinas (UNICAMP)
Assistência Técnica e Extensão Rural (INCAPER)
Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv de Souza, Zigomar Menezes
de Souza, Gustavo Soares
Marques, José [UNESP]
Pereira, Gener Tadeu [UNESP]
dc.subject.por.fl_str_mv Interpolation
Saccharum officinarum
Spatial variability
Variograms
topic Interpolation
Saccharum officinarum
Spatial variability
Variograms
description The objective of this study was to analyze different intensities of soil sampling for accuracy in geostatistical analysis and interpolation maps for precision agriculture in the sugarcane area. Soil samples were collected at two regular grids at a depth of 0.00 to 0.20m for granulometric analysis (area 1) and soil fertility (area 2). We compared soil sampling intensities: 208, 105, 58 and 24 points in Area 1 and 206, 102 and 53 points in Area 2. The data were submitted to descriptive analysis and geostatistics. The variograms constructed with 105 points didn't differ from variograms with 208 points, which doesn't occur for 58 and 24 points. The increase of sampling interval and reducing the number of points promote greater error in kriging. Samples with more than 100 points per area did not result in significant improvements in the error of kriging, or differed in the amount of fertilizer applied to the field.
publishDate 2014
dc.date.none.fl_str_mv 2014-02-01
2018-12-11T17:24:23Z
2018-12-11T17:24:23Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1590/S0103-84782014000200011
Ciencia Rural, v. 44, n. 2, p. 261-268, 2014.
0103-8478
1678-4596
http://hdl.handle.net/11449/177184
10.1590/S0103-84782014000200011
S0103-84782014000200011
2-s2.0-84893964177
S0103-84782014000200011.pdf
url http://dx.doi.org/10.1590/S0103-84782014000200011
http://hdl.handle.net/11449/177184
identifier_str_mv Ciencia Rural, v. 44, n. 2, p. 261-268, 2014.
0103-8478
1678-4596
10.1590/S0103-84782014000200011
S0103-84782014000200011
2-s2.0-84893964177
S0103-84782014000200011.pdf
dc.language.iso.fl_str_mv eng
por
language eng
por
dc.relation.none.fl_str_mv Ciencia Rural
0,337
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 261-268
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
_version_ 1808128342035005440

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