Availability and spatial variability of copper, iron, manganese and zinc in soils of the State of Ceará, Brazil
Autor(a) principal: | |
---|---|
Data de Publicação: | 2018 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Revista ciência agronômica (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902018000300371 |
Resumo: | ABSTRACT The aim of the present work was to: (i) determine and map the micronutrient content (copper - Cu, iron - Fe, manganese - Mn and zinc - Zn) in soils of the State of Ceará; (ii) evaluate soil attributes related to micronutrient availability; and (iii) evaluate, by ordinary kriging, the spatial dependence of the micronutrient content. The study area is located in the central region of Ceará, in the basin of the River Banabuiú. Soil samples were collected in the surface and subsurface layers to determine the chemical attributes, granulometry, and micronutrient content, extracted with Mehlich-1 solution. The sites of the principal types of soil in the region were spatialised and the results submitted to descriptive analysis and Pearson correlation analysis. The semivariograms with the best fit were tested using the ordinary kriging method, and the maps of spatial variability were prepared. The highest values for the mean, maximum and minimum levels of Cu and Fe are found in the subsurface layers, while for Mn and Zn, they are found in the surface layers. In the surface layers, the majority of soils present Fe, Mn and Zn in levels suitable for agricultural production, while the levels of Cu are classified as medium to low. The micronutrients showed a significant positive correlation, especially with the soil attributes and with each other. Cu, Fe, Mn and Zn are classified as having medium to strong spatial dependence in the surface and subsurface layers. |
id |
UFC-2_c2e8a99c97328f0032381b9052b8ec98 |
---|---|
oai_identifier_str |
oai:scielo:S1806-66902018000300371 |
network_acronym_str |
UFC-2 |
network_name_str |
Revista ciência agronômica (Online) |
repository_id_str |
|
spelling |
Availability and spatial variability of copper, iron, manganese and zinc in soils of the State of Ceará, BrazilCationic micronutrientsGeostatisticsOrdinary krigingSoils of the semi-arid regionABSTRACT The aim of the present work was to: (i) determine and map the micronutrient content (copper - Cu, iron - Fe, manganese - Mn and zinc - Zn) in soils of the State of Ceará; (ii) evaluate soil attributes related to micronutrient availability; and (iii) evaluate, by ordinary kriging, the spatial dependence of the micronutrient content. The study area is located in the central region of Ceará, in the basin of the River Banabuiú. Soil samples were collected in the surface and subsurface layers to determine the chemical attributes, granulometry, and micronutrient content, extracted with Mehlich-1 solution. The sites of the principal types of soil in the region were spatialised and the results submitted to descriptive analysis and Pearson correlation analysis. The semivariograms with the best fit were tested using the ordinary kriging method, and the maps of spatial variability were prepared. The highest values for the mean, maximum and minimum levels of Cu and Fe are found in the subsurface layers, while for Mn and Zn, they are found in the surface layers. In the surface layers, the majority of soils present Fe, Mn and Zn in levels suitable for agricultural production, while the levels of Cu are classified as medium to low. The micronutrients showed a significant positive correlation, especially with the soil attributes and with each other. Cu, Fe, Mn and Zn are classified as having medium to strong spatial dependence in the surface and subsurface layers.Universidade Federal do Ceará2018-09-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902018000300371Revista Ciência Agronômica v.49 n.3 2018reponame:Revista ciência agronômica (Online)instname:Universidade Federal do Ceará (UFC)instacron:UFC10.5935/1806-6690.20180042info:eu-repo/semantics/openAccessOliveira,Mara Lucia JacintoValladares,Gustavo SouzaVieira,Johnston SilvaCoelho,Ricardo Marqueseng2018-10-02T00:00:00Zoai:scielo:S1806-66902018000300371Revistahttp://www.ccarevista.ufc.br/PUBhttps://old.scielo.br/oai/scielo-oai.php||alekdutra@ufc.br|| ccarev@ufc.br1806-66900045-6888opendoar:2018-10-02T00:00Revista ciência agronômica (Online) - Universidade Federal do Ceará (UFC)false |
dc.title.none.fl_str_mv |
Availability and spatial variability of copper, iron, manganese and zinc in soils of the State of Ceará, Brazil |
title |
Availability and spatial variability of copper, iron, manganese and zinc in soils of the State of Ceará, Brazil |
spellingShingle |
Availability and spatial variability of copper, iron, manganese and zinc in soils of the State of Ceará, Brazil Oliveira,Mara Lucia Jacinto Cationic micronutrients Geostatistics Ordinary kriging Soils of the semi-arid region |
title_short |
Availability and spatial variability of copper, iron, manganese and zinc in soils of the State of Ceará, Brazil |
title_full |
Availability and spatial variability of copper, iron, manganese and zinc in soils of the State of Ceará, Brazil |
title_fullStr |
Availability and spatial variability of copper, iron, manganese and zinc in soils of the State of Ceará, Brazil |
title_full_unstemmed |
Availability and spatial variability of copper, iron, manganese and zinc in soils of the State of Ceará, Brazil |
title_sort |
Availability and spatial variability of copper, iron, manganese and zinc in soils of the State of Ceará, Brazil |
author |
Oliveira,Mara Lucia Jacinto |
author_facet |
Oliveira,Mara Lucia Jacinto Valladares,Gustavo Souza Vieira,Johnston Silva Coelho,Ricardo Marques |
author_role |
author |
author2 |
Valladares,Gustavo Souza Vieira,Johnston Silva Coelho,Ricardo Marques |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Oliveira,Mara Lucia Jacinto Valladares,Gustavo Souza Vieira,Johnston Silva Coelho,Ricardo Marques |
dc.subject.por.fl_str_mv |
Cationic micronutrients Geostatistics Ordinary kriging Soils of the semi-arid region |
topic |
Cationic micronutrients Geostatistics Ordinary kriging Soils of the semi-arid region |
description |
ABSTRACT The aim of the present work was to: (i) determine and map the micronutrient content (copper - Cu, iron - Fe, manganese - Mn and zinc - Zn) in soils of the State of Ceará; (ii) evaluate soil attributes related to micronutrient availability; and (iii) evaluate, by ordinary kriging, the spatial dependence of the micronutrient content. The study area is located in the central region of Ceará, in the basin of the River Banabuiú. Soil samples were collected in the surface and subsurface layers to determine the chemical attributes, granulometry, and micronutrient content, extracted with Mehlich-1 solution. The sites of the principal types of soil in the region were spatialised and the results submitted to descriptive analysis and Pearson correlation analysis. The semivariograms with the best fit were tested using the ordinary kriging method, and the maps of spatial variability were prepared. The highest values for the mean, maximum and minimum levels of Cu and Fe are found in the subsurface layers, while for Mn and Zn, they are found in the surface layers. In the surface layers, the majority of soils present Fe, Mn and Zn in levels suitable for agricultural production, while the levels of Cu are classified as medium to low. The micronutrients showed a significant positive correlation, especially with the soil attributes and with each other. Cu, Fe, Mn and Zn are classified as having medium to strong spatial dependence in the surface and subsurface layers. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-09-01 |
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=S1806-66902018000300371 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902018000300371 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.5935/1806-6690.20180042 |
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 |
Universidade Federal do Ceará |
publisher.none.fl_str_mv |
Universidade Federal do Ceará |
dc.source.none.fl_str_mv |
Revista Ciência Agronômica v.49 n.3 2018 reponame:Revista ciência agronômica (Online) instname:Universidade Federal do Ceará (UFC) instacron:UFC |
instname_str |
Universidade Federal do Ceará (UFC) |
instacron_str |
UFC |
institution |
UFC |
reponame_str |
Revista ciência agronômica (Online) |
collection |
Revista ciência agronômica (Online) |
repository.name.fl_str_mv |
Revista ciência agronômica (Online) - Universidade Federal do Ceará (UFC) |
repository.mail.fl_str_mv |
||alekdutra@ufc.br|| ccarev@ufc.br |
_version_ |
1750297489036017664 |