Detailed mapping unit design based on soil-landscape relation and spatial variability of magnetic susceptibility and soil color
Autor(a) principal: | |
---|---|
Data de Publicação: | 2015 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.catena.2015.07.010 http://hdl.handle.net/11449/167961 |
Resumo: | The objective was to identify landscape areas with different patterns of variability using a statistic protocol with data of magnetic susceptibility (MS) and soil color that are covariate attributes of soil formation factors and processes. The studied area, of 380. ha, is located in Northeast of São Paulo State, Brazil. An amount of 86 samples was collected using 30. m intervals on the transect. At the transect sides, 150 samples were collected at 159. m intervals (a point each 2.5 ha). First the accuracy limits have been validated in the transect using the technique of Split Moving Windows - SMW. The limits identified in the transect were extrapolated to the sides using the contours of variability maps. The MS peaks SMW, for both depths, presented a correlation with the peaks of clay content (r = 0.7; P < 0.01), hue (varying from 0:37; P < 0.05 to 0.61; P < 0.01) and Normalized Difference Vegetation Index-NDVI (varying from - 0.25 to - 0.35, P < 0.05). The errors of the MS spatial variability maps (6.22-11.85%) were similar to the clay content ones (6:22 to 14:16%). MS was more efficient in the compartmentalization of the landscape (identification of areas with different patterns of variability) than the hue determined by diffuse reflectance spectroscopy in Oxisols under the transition Basalt and Colluvial-Elluvial-Alluvial Deposits. The results of this study can lead to using an alternative strategy that is a mapping of soil attributes and identification of areas with different patterns of pedogenic iron oxide variability. |
id |
UNSP_14d89ad7cf1a35be771f6f25b1700483 |
---|---|
oai_identifier_str |
oai:repositorio.unesp.br:11449/167961 |
network_acronym_str |
UNSP |
network_name_str |
Repositório Institucional da UNESP |
repository_id_str |
2946 |
spelling |
Detailed mapping unit design based on soil-landscape relation and spatial variability of magnetic susceptibility and soil colorAttribute mapGeostatisticsPedometricsSplit Moving WindowsThe objective was to identify landscape areas with different patterns of variability using a statistic protocol with data of magnetic susceptibility (MS) and soil color that are covariate attributes of soil formation factors and processes. The studied area, of 380. ha, is located in Northeast of São Paulo State, Brazil. An amount of 86 samples was collected using 30. m intervals on the transect. At the transect sides, 150 samples were collected at 159. m intervals (a point each 2.5 ha). First the accuracy limits have been validated in the transect using the technique of Split Moving Windows - SMW. The limits identified in the transect were extrapolated to the sides using the contours of variability maps. The MS peaks SMW, for both depths, presented a correlation with the peaks of clay content (r = 0.7; P < 0.01), hue (varying from 0:37; P < 0.05 to 0.61; P < 0.01) and Normalized Difference Vegetation Index-NDVI (varying from - 0.25 to - 0.35, P < 0.05). The errors of the MS spatial variability maps (6.22-11.85%) were similar to the clay content ones (6:22 to 14:16%). MS was more efficient in the compartmentalization of the landscape (identification of areas with different patterns of variability) than the hue determined by diffuse reflectance spectroscopy in Oxisols under the transition Basalt and Colluvial-Elluvial-Alluvial Deposits. The results of this study can lead to using an alternative strategy that is a mapping of soil attributes and identification of areas with different patterns of pedogenic iron oxide variability.Department of Soils and Fertilizers, State University of São Paulo (UNESP), Research Group CSME - Soil Characterization for Specific ManagementDepartment of Exact Sciences, State University of São Paulo (UNESP), Research Group CSME - Soil Characterization for Specific ManagementDepartment of Geography, University of Brasília (UNB), LSIE - Laboratory of Spatial Information SystemsEmbrapa CerradosDepartment of Soils and Fertilizers, State University of São Paulo (UNESP), Research Group CSME - Soil Characterization for Specific ManagementDepartment of Exact Sciences, State University of São Paulo (UNESP), Research Group CSME - Soil Characterization for Specific ManagementUniversidade Estadual Paulista (Unesp)Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA)Siqueira, D. S. [UNESP]Marques, J. [UNESP]Pereira, G. T. [UNESP]Teixeira, D. B. [UNESP]Vasconcelos, V.Carvalho Júnior, O. A.Martins, E. S.2018-12-11T16:39:02Z2018-12-11T16:39:02Z2015-12-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article149-162application/pdfhttp://dx.doi.org/10.1016/j.catena.2015.07.010Catena, v. 135, p. 149-162.0341-8162http://hdl.handle.net/11449/16796110.1016/j.catena.2015.07.0102-s2.0-849394581882-s2.0-84939458188.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengCatena1,246info:eu-repo/semantics/openAccess2023-12-20T06:18:22Zoai:repositorio.unesp.br:11449/167961Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-12-20T06:18:22Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Detailed mapping unit design based on soil-landscape relation and spatial variability of magnetic susceptibility and soil color |
title |
Detailed mapping unit design based on soil-landscape relation and spatial variability of magnetic susceptibility and soil color |
spellingShingle |
Detailed mapping unit design based on soil-landscape relation and spatial variability of magnetic susceptibility and soil color Siqueira, D. S. [UNESP] Attribute map Geostatistics Pedometrics Split Moving Windows |
title_short |
Detailed mapping unit design based on soil-landscape relation and spatial variability of magnetic susceptibility and soil color |
title_full |
Detailed mapping unit design based on soil-landscape relation and spatial variability of magnetic susceptibility and soil color |
title_fullStr |
Detailed mapping unit design based on soil-landscape relation and spatial variability of magnetic susceptibility and soil color |
title_full_unstemmed |
Detailed mapping unit design based on soil-landscape relation and spatial variability of magnetic susceptibility and soil color |
title_sort |
Detailed mapping unit design based on soil-landscape relation and spatial variability of magnetic susceptibility and soil color |
author |
Siqueira, D. S. [UNESP] |
author_facet |
Siqueira, D. S. [UNESP] Marques, J. [UNESP] Pereira, G. T. [UNESP] Teixeira, D. B. [UNESP] Vasconcelos, V. Carvalho Júnior, O. A. Martins, E. S. |
author_role |
author |
author2 |
Marques, J. [UNESP] Pereira, G. T. [UNESP] Teixeira, D. B. [UNESP] Vasconcelos, V. Carvalho Júnior, O. A. Martins, E. S. |
author2_role |
author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA) |
dc.contributor.author.fl_str_mv |
Siqueira, D. S. [UNESP] Marques, J. [UNESP] Pereira, G. T. [UNESP] Teixeira, D. B. [UNESP] Vasconcelos, V. Carvalho Júnior, O. A. Martins, E. S. |
dc.subject.por.fl_str_mv |
Attribute map Geostatistics Pedometrics Split Moving Windows |
topic |
Attribute map Geostatistics Pedometrics Split Moving Windows |
description |
The objective was to identify landscape areas with different patterns of variability using a statistic protocol with data of magnetic susceptibility (MS) and soil color that are covariate attributes of soil formation factors and processes. The studied area, of 380. ha, is located in Northeast of São Paulo State, Brazil. An amount of 86 samples was collected using 30. m intervals on the transect. At the transect sides, 150 samples were collected at 159. m intervals (a point each 2.5 ha). First the accuracy limits have been validated in the transect using the technique of Split Moving Windows - SMW. The limits identified in the transect were extrapolated to the sides using the contours of variability maps. The MS peaks SMW, for both depths, presented a correlation with the peaks of clay content (r = 0.7; P < 0.01), hue (varying from 0:37; P < 0.05 to 0.61; P < 0.01) and Normalized Difference Vegetation Index-NDVI (varying from - 0.25 to - 0.35, P < 0.05). The errors of the MS spatial variability maps (6.22-11.85%) were similar to the clay content ones (6:22 to 14:16%). MS was more efficient in the compartmentalization of the landscape (identification of areas with different patterns of variability) than the hue determined by diffuse reflectance spectroscopy in Oxisols under the transition Basalt and Colluvial-Elluvial-Alluvial Deposits. The results of this study can lead to using an alternative strategy that is a mapping of soil attributes and identification of areas with different patterns of pedogenic iron oxide variability. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-12-01 2018-12-11T16:39:02Z 2018-12-11T16:39:02Z |
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/10.1016/j.catena.2015.07.010 Catena, v. 135, p. 149-162. 0341-8162 http://hdl.handle.net/11449/167961 10.1016/j.catena.2015.07.010 2-s2.0-84939458188 2-s2.0-84939458188.pdf |
url |
http://dx.doi.org/10.1016/j.catena.2015.07.010 http://hdl.handle.net/11449/167961 |
identifier_str_mv |
Catena, v. 135, p. 149-162. 0341-8162 10.1016/j.catena.2015.07.010 2-s2.0-84939458188 2-s2.0-84939458188.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Catena 1,246 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
149-162 application/pdf |
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_ |
1799965342855856128 |