Spatial variability of soil attributes in an experimental basin in the semi-arid region of Pernambuco, Brazil
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Revista Brasileira de Engenharia Agrícola e Ambiental (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662018000100038 |
Resumo: | ABSTRACT This study aimed to evaluate the spatial patterns of physical and chemical properties of a soil in an experimental basin with an area of 149 km2, located in the municipality of Pesqueira, in the semi-arid region of Pernambuco state (Brazil). Samples were taken in the layers of 0-0.10 and 0.10-0.20 m, at 35 monitoring points distributed in an irregular grid, encompassing the three soil classes present in the basin and commonly found in the semi-arid region. For the attributes of soil texture, organic carbon and bulk density in the layer of 0.10-0.20 m, spatial dependence from medium to strong was detected, ranging from 0.03 to 49.98%. Bulk density in the layer 0-0.10 m, as well as the electrical conductivity, in both layers, showed pure nugget effect, possibly due to insufficient sampling distance to capture spatial dependence. However, geostatistics represented well the spatial dynamics of soil attributes at points where the mapping is possible. |
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Spatial variability of soil attributes in an experimental basin in the semi-arid region of Pernambuco, BrazilkriginggeostatisticsCaatingaABSTRACT This study aimed to evaluate the spatial patterns of physical and chemical properties of a soil in an experimental basin with an area of 149 km2, located in the municipality of Pesqueira, in the semi-arid region of Pernambuco state (Brazil). Samples were taken in the layers of 0-0.10 and 0.10-0.20 m, at 35 monitoring points distributed in an irregular grid, encompassing the three soil classes present in the basin and commonly found in the semi-arid region. For the attributes of soil texture, organic carbon and bulk density in the layer of 0.10-0.20 m, spatial dependence from medium to strong was detected, ranging from 0.03 to 49.98%. Bulk density in the layer 0-0.10 m, as well as the electrical conductivity, in both layers, showed pure nugget effect, possibly due to insufficient sampling distance to capture spatial dependence. However, geostatistics represented well the spatial dynamics of soil attributes at points where the mapping is possible.Departamento de Engenharia Agrícola - UFCG2018-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662018000100038Revista Brasileira de Engenharia Agrícola e Ambiental v.22 n.1 2018reponame:Revista Brasileira de Engenharia Agrícola e Ambiental (Online)instname:Universidade Federal de Campina Grande (UFCG)instacron:UFCG10.1590/1807-1929/agriambi.v22n1p38-44info:eu-repo/semantics/openAccessAraújo,Diego C. dos S.Montenegro,Suzana M. G. L.Montenegro,Abelardo A. de A.Silva Junior,Valdemir de P. eSantos,Sylvana M. doseng2017-12-04T00:00:00Zoai:scielo:S1415-43662018000100038Revistahttp://www.scielo.br/rbeaaPUBhttps://old.scielo.br/oai/scielo-oai.php||agriambi@agriambi.com.br1807-19291415-4366opendoar:2017-12-04T00:00Revista Brasileira de Engenharia Agrícola e Ambiental (Online) - Universidade Federal de Campina Grande (UFCG)false |
dc.title.none.fl_str_mv |
Spatial variability of soil attributes in an experimental basin in the semi-arid region of Pernambuco, Brazil |
title |
Spatial variability of soil attributes in an experimental basin in the semi-arid region of Pernambuco, Brazil |
spellingShingle |
Spatial variability of soil attributes in an experimental basin in the semi-arid region of Pernambuco, Brazil Araújo,Diego C. dos S. kriging geostatistics Caatinga |
title_short |
Spatial variability of soil attributes in an experimental basin in the semi-arid region of Pernambuco, Brazil |
title_full |
Spatial variability of soil attributes in an experimental basin in the semi-arid region of Pernambuco, Brazil |
title_fullStr |
Spatial variability of soil attributes in an experimental basin in the semi-arid region of Pernambuco, Brazil |
title_full_unstemmed |
Spatial variability of soil attributes in an experimental basin in the semi-arid region of Pernambuco, Brazil |
title_sort |
Spatial variability of soil attributes in an experimental basin in the semi-arid region of Pernambuco, Brazil |
author |
Araújo,Diego C. dos S. |
author_facet |
Araújo,Diego C. dos S. Montenegro,Suzana M. G. L. Montenegro,Abelardo A. de A. Silva Junior,Valdemir de P. e Santos,Sylvana M. dos |
author_role |
author |
author2 |
Montenegro,Suzana M. G. L. Montenegro,Abelardo A. de A. Silva Junior,Valdemir de P. e Santos,Sylvana M. dos |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Araújo,Diego C. dos S. Montenegro,Suzana M. G. L. Montenegro,Abelardo A. de A. Silva Junior,Valdemir de P. e Santos,Sylvana M. dos |
dc.subject.por.fl_str_mv |
kriging geostatistics Caatinga |
topic |
kriging geostatistics Caatinga |
description |
ABSTRACT This study aimed to evaluate the spatial patterns of physical and chemical properties of a soil in an experimental basin with an area of 149 km2, located in the municipality of Pesqueira, in the semi-arid region of Pernambuco state (Brazil). Samples were taken in the layers of 0-0.10 and 0.10-0.20 m, at 35 monitoring points distributed in an irregular grid, encompassing the three soil classes present in the basin and commonly found in the semi-arid region. For the attributes of soil texture, organic carbon and bulk density in the layer of 0.10-0.20 m, spatial dependence from medium to strong was detected, ranging from 0.03 to 49.98%. Bulk density in the layer 0-0.10 m, as well as the electrical conductivity, in both layers, showed pure nugget effect, possibly due to insufficient sampling distance to capture spatial dependence. However, geostatistics represented well the spatial dynamics of soil attributes at points where the mapping is possible. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-01-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662018000100038 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662018000100038 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/1807-1929/agriambi.v22n1p38-44 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Departamento de Engenharia Agrícola - UFCG |
publisher.none.fl_str_mv |
Departamento de Engenharia Agrícola - UFCG |
dc.source.none.fl_str_mv |
Revista Brasileira de Engenharia Agrícola e Ambiental v.22 n.1 2018 reponame:Revista Brasileira de Engenharia Agrícola e Ambiental (Online) instname:Universidade Federal de Campina Grande (UFCG) instacron:UFCG |
instname_str |
Universidade Federal de Campina Grande (UFCG) |
instacron_str |
UFCG |
institution |
UFCG |
reponame_str |
Revista Brasileira de Engenharia Agrícola e Ambiental (Online) |
collection |
Revista Brasileira de Engenharia Agrícola e Ambiental (Online) |
repository.name.fl_str_mv |
Revista Brasileira de Engenharia Agrícola e Ambiental (Online) - Universidade Federal de Campina Grande (UFCG) |
repository.mail.fl_str_mv |
||agriambi@agriambi.com.br |
_version_ |
1750297685940764672 |