Environmental correlation and spatial autocorrelation of soil properties in Keller Peninsula, Maritime Antarctica.
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
Texto Completo: | http://www.alice.cnptia.embrapa.br/alice/handle/doc/1084192 |
Resumo: | The pattern of variation in soil and landform properties in relation to environmental covariates are closely related to soil type distribution. The aim of this study was to apply digital soil mapping techniques to analysis of the pattern of soil property variation in relation to environmental covariates under periglacial conditions at Keller Peninsula, Maritime Antarctica. We considered the hypothesis that covariates normally used for environmental correlation elsewhere can be adequately employed in periglacial areas in Maritime Antarctica. For that purpose, 138 soil samples from 47 soil sites were collected for analysis of soil chemical and physical properties. We tested the correlation between soil properties (clay, potassium, sand, organic carbon, and pH) and environmental covariates. The environmental covariates selected were correlated with soil properties according to the terrain attributes of the digital elevation model (DEM). The models evaluated were linear regression, ordinary kriging, and regression kriging. The best performance was obtained using normalized height as a covariate, with an R2 of 0.59 for sand. In contrast, the lowest R2 of 0.15 was obtained for organic carbon, also using the regression kriging method. Overall, results indicate that, despite the predominant periglacial conditions, the environmental covariates normally used for digital terrain mapping of soil properties worldwide can be successfully employed for understanding the main variations in soil properties and soil-forming factors in this region. Keywords: kriging, geostatistical methods, soil variability. |
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Environmental correlation and spatial autocorrelation of soil properties in Keller Peninsula, Maritime Antarctica.KrigagemMétodos geoestatísticosVariabilidade do soloThe pattern of variation in soil and landform properties in relation to environmental covariates are closely related to soil type distribution. The aim of this study was to apply digital soil mapping techniques to analysis of the pattern of soil property variation in relation to environmental covariates under periglacial conditions at Keller Peninsula, Maritime Antarctica. We considered the hypothesis that covariates normally used for environmental correlation elsewhere can be adequately employed in periglacial areas in Maritime Antarctica. For that purpose, 138 soil samples from 47 soil sites were collected for analysis of soil chemical and physical properties. We tested the correlation between soil properties (clay, potassium, sand, organic carbon, and pH) and environmental covariates. The environmental covariates selected were correlated with soil properties according to the terrain attributes of the digital elevation model (DEM). The models evaluated were linear regression, ordinary kriging, and regression kriging. The best performance was obtained using normalized height as a covariate, with an R2 of 0.59 for sand. In contrast, the lowest R2 of 0.15 was obtained for organic carbon, also using the regression kriging method. Overall, results indicate that, despite the predominant periglacial conditions, the environmental covariates normally used for digital terrain mapping of soil properties worldwide can be successfully employed for understanding the main variations in soil properties and soil-forming factors in this region. Keywords: kriging, geostatistical methods, soil variability.ANDRÉ GERALDO DE LIMA MORAES, UFRRJ; MARCIO ROCHA FRANCELINO, UFRRJ; WALDIR DE CARVALHO JUNIOR, CNPS; MARCOS GERVASIO PEREIRA, UFRRJ; ANDRÉ THOMAZINI, UFV; CARLOS ERNESTO GONÇALVES REYNAUD SCHAEFER, UFV.MORAES, A. G. de L.FRANCELINO, M. R.CARVALHO JUNIOR, W. dePEREIRA, M. G.THOMAZINI, A.SCHAEFER, C. E. G. R.2018-01-04T23:21:42Z2018-01-04T23:21:42Z2018-01-0420172018-01-04T23:21:42Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleRevista Brasileira de Ciência do Solo, Viçosa, MG, v. 41, 2017. Ref. e0170021.http://www.alice.cnptia.embrapa.br/alice/handle/doc/108419210.1590/18069657rbcs20170021enginfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPA2018-01-04T23:21:50Zoai:www.alice.cnptia.embrapa.br:doc/1084192Repositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestopendoar:21542018-01-04T23:21:50falseRepositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestcg-riaa@embrapa.bropendoar:21542018-01-04T23:21:50Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Environmental correlation and spatial autocorrelation of soil properties in Keller Peninsula, Maritime Antarctica. |
title |
Environmental correlation and spatial autocorrelation of soil properties in Keller Peninsula, Maritime Antarctica. |
spellingShingle |
Environmental correlation and spatial autocorrelation of soil properties in Keller Peninsula, Maritime Antarctica. MORAES, A. G. de L. Krigagem Métodos geoestatísticos Variabilidade do solo |
title_short |
Environmental correlation and spatial autocorrelation of soil properties in Keller Peninsula, Maritime Antarctica. |
title_full |
Environmental correlation and spatial autocorrelation of soil properties in Keller Peninsula, Maritime Antarctica. |
title_fullStr |
Environmental correlation and spatial autocorrelation of soil properties in Keller Peninsula, Maritime Antarctica. |
title_full_unstemmed |
Environmental correlation and spatial autocorrelation of soil properties in Keller Peninsula, Maritime Antarctica. |
title_sort |
Environmental correlation and spatial autocorrelation of soil properties in Keller Peninsula, Maritime Antarctica. |
author |
MORAES, A. G. de L. |
author_facet |
MORAES, A. G. de L. FRANCELINO, M. R. CARVALHO JUNIOR, W. de PEREIRA, M. G. THOMAZINI, A. SCHAEFER, C. E. G. R. |
author_role |
author |
author2 |
FRANCELINO, M. R. CARVALHO JUNIOR, W. de PEREIRA, M. G. THOMAZINI, A. SCHAEFER, C. E. G. R. |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
ANDRÉ GERALDO DE LIMA MORAES, UFRRJ; MARCIO ROCHA FRANCELINO, UFRRJ; WALDIR DE CARVALHO JUNIOR, CNPS; MARCOS GERVASIO PEREIRA, UFRRJ; ANDRÉ THOMAZINI, UFV; CARLOS ERNESTO GONÇALVES REYNAUD SCHAEFER, UFV. |
dc.contributor.author.fl_str_mv |
MORAES, A. G. de L. FRANCELINO, M. R. CARVALHO JUNIOR, W. de PEREIRA, M. G. THOMAZINI, A. SCHAEFER, C. E. G. R. |
dc.subject.por.fl_str_mv |
Krigagem Métodos geoestatísticos Variabilidade do solo |
topic |
Krigagem Métodos geoestatísticos Variabilidade do solo |
description |
The pattern of variation in soil and landform properties in relation to environmental covariates are closely related to soil type distribution. The aim of this study was to apply digital soil mapping techniques to analysis of the pattern of soil property variation in relation to environmental covariates under periglacial conditions at Keller Peninsula, Maritime Antarctica. We considered the hypothesis that covariates normally used for environmental correlation elsewhere can be adequately employed in periglacial areas in Maritime Antarctica. For that purpose, 138 soil samples from 47 soil sites were collected for analysis of soil chemical and physical properties. We tested the correlation between soil properties (clay, potassium, sand, organic carbon, and pH) and environmental covariates. The environmental covariates selected were correlated with soil properties according to the terrain attributes of the digital elevation model (DEM). The models evaluated were linear regression, ordinary kriging, and regression kriging. The best performance was obtained using normalized height as a covariate, with an R2 of 0.59 for sand. In contrast, the lowest R2 of 0.15 was obtained for organic carbon, also using the regression kriging method. Overall, results indicate that, despite the predominant periglacial conditions, the environmental covariates normally used for digital terrain mapping of soil properties worldwide can be successfully employed for understanding the main variations in soil properties and soil-forming factors in this region. Keywords: kriging, geostatistical methods, soil variability. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017 2018-01-04T23:21:42Z 2018-01-04T23:21:42Z 2018-01-04 2018-01-04T23:21:42Z |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
Revista Brasileira de Ciência do Solo, Viçosa, MG, v. 41, 2017. Ref. e0170021. http://www.alice.cnptia.embrapa.br/alice/handle/doc/1084192 10.1590/18069657rbcs20170021 |
identifier_str_mv |
Revista Brasileira de Ciência do Solo, Viçosa, MG, v. 41, 2017. Ref. e0170021. 10.1590/18069657rbcs20170021 |
url |
http://www.alice.cnptia.embrapa.br/alice/handle/doc/1084192 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
instname_str |
Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
instacron_str |
EMBRAPA |
institution |
EMBRAPA |
reponame_str |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
collection |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
repository.name.fl_str_mv |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
cg-riaa@embrapa.br |
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1794503447269081088 |