Outlining precision boundaries among areas with different variability standards using magnetic susceptibility and geomorphic surfaces
There is an increasing demand for detailed maps that represent in a simplified way the knowledge of the variability of a particular area or region maps. The objective was to outline precision boundaries among areas with different accuracy variability standards using magnetic susceptibility and geomo...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Sociedade Brasileira de Engenharia Agrícola
2014-08-01
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| Series: | Engenharia Agrícola |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162014000400009&tlng=en |
| _version_ | 1818950987791990784 |
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| author | Sammy S. R. Matias José Marques Júnior Diego S. Siqueira Gener T. Pereira |
| author_facet | Sammy S. R. Matias José Marques Júnior Diego S. Siqueira Gener T. Pereira |
| author_sort | Sammy S. R. Matias |
| collection | DOAJ |
| description | There is an increasing demand for detailed maps that represent in a simplified way the knowledge of the variability of a particular area or region maps. The objective was to outline precision boundaries among areas with different accuracy variability standards using magnetic susceptibility and geomorphic surfaces. The study was conducted in an area of 110 ha, which identified three compartment landscapes based on the geomorphic surfaces model. To determinate pH, organic matter, phosphorus, potassium and magnesium, the total sand and clay, 514 soil samples were collected at depths of 0-0.20 m and 0.60-0.80 m. The sum of base, cationic exchange capacity and base saturation were calculated and the magnetic susceptibility was evaluated in the laboratory using a system based on a balance of analytical precision method. Geomorphic surfaces identification allowed setting specific management areas (locations with maximum homogeneity of soil attributes). The map of spatial variability of magnetic susceptibility can be used to validate the precise boundaries among geomorphic surfaces identified in the field and infer the variability of clay content and soil base saturation. |
| first_indexed | 2024-12-20T09:27:19Z |
| format | Article |
| id | doaj.art-d44c18e5644043b49fec806aeb9ad2ba |
| institution | Directory Open Access Journal |
| issn | 0100-6916 |
| language | English |
| last_indexed | 2024-12-20T09:27:19Z |
| publishDate | 2014-08-01 |
| publisher | Sociedade Brasileira de Engenharia Agrícola |
| record_format | Article |
| series | Engenharia Agrícola |
| spelling | doaj.art-d44c18e5644043b49fec806aeb9ad2ba2022-12-21T19:45:10ZengSociedade Brasileira de Engenharia AgrícolaEngenharia Agrícola0100-69162014-08-0134469570610.1590/S0100-69162014000400009Outlining precision boundaries among areas with different variability standards using magnetic susceptibility and geomorphic surfacesSammy S. R. Matias0José Marques Júnior1Diego S. Siqueira2Gener T. Pereira3Universidade Estadual do PiauíUniversidade Estadual Paulista Júlio de Mesquita FilhoUniversidade Estadual Paulista Júlio de Mesquita FilhoUniversidade Estadual Paulista Júlio de Mesquita FilhoThere is an increasing demand for detailed maps that represent in a simplified way the knowledge of the variability of a particular area or region maps. The objective was to outline precision boundaries among areas with different accuracy variability standards using magnetic susceptibility and geomorphic surfaces. The study was conducted in an area of 110 ha, which identified three compartment landscapes based on the geomorphic surfaces model. To determinate pH, organic matter, phosphorus, potassium and magnesium, the total sand and clay, 514 soil samples were collected at depths of 0-0.20 m and 0.60-0.80 m. The sum of base, cationic exchange capacity and base saturation were calculated and the magnetic susceptibility was evaluated in the laboratory using a system based on a balance of analytical precision method. Geomorphic surfaces identification allowed setting specific management areas (locations with maximum homogeneity of soil attributes). The map of spatial variability of magnetic susceptibility can be used to validate the precise boundaries among geomorphic surfaces identified in the field and infer the variability of clay content and soil base saturation.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162014000400009&tlng=endetailed mappingpedometricsaccuracy boundaries |
| spellingShingle | Sammy S. R. Matias José Marques Júnior Diego S. Siqueira Gener T. Pereira Outlining precision boundaries among areas with different variability standards using magnetic susceptibility and geomorphic surfaces Engenharia Agrícola detailed mapping pedometrics accuracy boundaries |
| title | Outlining precision boundaries among areas with different variability standards using magnetic susceptibility and geomorphic surfaces |
| title_full | Outlining precision boundaries among areas with different variability standards using magnetic susceptibility and geomorphic surfaces |
| title_fullStr | Outlining precision boundaries among areas with different variability standards using magnetic susceptibility and geomorphic surfaces |
| title_full_unstemmed | Outlining precision boundaries among areas with different variability standards using magnetic susceptibility and geomorphic surfaces |
| title_short | Outlining precision boundaries among areas with different variability standards using magnetic susceptibility and geomorphic surfaces |
| title_sort | outlining precision boundaries among areas with different variability standards using magnetic susceptibility and geomorphic surfaces |
| topic | detailed mapping pedometrics accuracy boundaries |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162014000400009&tlng=en |
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