Stochastic simulations of calcium contents in sugarcane area
<title>ABSTRACT</title><p>The aim of this study was to quantify and to map the spatial distribution and uncertainty of soil calcium (Ca) content in a sugarcane area by sequential Gaussian and simulated-annealing simulation methods. The study was conducted in the municipality of Gua...
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| Format: | Article |
| Language: | English |
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Universidade Federal de Campina Grande
2015-08-01
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| Series: | Revista Brasileira de Engenharia Agrícola e Ambiental |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662015000800767&lng=en&tlng=en |
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| author | Gener T. Pereira Daniel D. B. Teixeira Zigomar M. de Souza Ismênia R. de Oliveira José Marques |
| author_facet | Gener T. Pereira Daniel D. B. Teixeira Zigomar M. de Souza Ismênia R. de Oliveira José Marques |
| author_sort | Gener T. Pereira |
| collection | DOAJ |
| description | <title>ABSTRACT</title><p>The aim of this study was to quantify and to map the spatial distribution and uncertainty of soil calcium (Ca) content in a sugarcane area by sequential Gaussian and simulated-annealing simulation methods. The study was conducted in the municipality of Guariba, northeast of the São Paulo state. A sampling grid with 206 points separated by a distance of 50 m was established, totaling approximately 42 ha. The calcium contents were evaluated in layer of 0-0.20 m. Techniques of geostatistical estimation, ordinary kriging and stochastic simulations were used. The technique of ordinary kriging does not reproduce satisfactorily the global statistics of the Ca contents. The use of simulation techniques allows reproducing the spatial variability pattern of Ca contents. The techniques of sequential Gaussian simulation and simulated annealing showed significant variations in the contents of Ca in the small scale.</p> |
| format | Article |
| id | doaj-art-0cf9e783945b48a19d2b0518c050decf |
| institution | Kabale University |
| issn | 1807-1929 |
| language | English |
| publishDate | 2015-08-01 |
| publisher | Universidade Federal de Campina Grande |
| record_format | Article |
| series | Revista Brasileira de Engenharia Agrícola e Ambiental |
| spelling | doaj-art-0cf9e783945b48a19d2b0518c050decf2025-08-20T03:54:15ZengUniversidade Federal de Campina GrandeRevista Brasileira de Engenharia Agrícola e Ambiental1807-19292015-08-0119876777210.1590/1807-1929/agriambi.v19n8p767-772S1415-43662015000800767Stochastic simulations of calcium contents in sugarcane areaGener T. PereiraDaniel D. B. TeixeiraZigomar M. de SouzaIsmênia R. de OliveiraJosé Marques<title>ABSTRACT</title><p>The aim of this study was to quantify and to map the spatial distribution and uncertainty of soil calcium (Ca) content in a sugarcane area by sequential Gaussian and simulated-annealing simulation methods. The study was conducted in the municipality of Guariba, northeast of the São Paulo state. A sampling grid with 206 points separated by a distance of 50 m was established, totaling approximately 42 ha. The calcium contents were evaluated in layer of 0-0.20 m. Techniques of geostatistical estimation, ordinary kriging and stochastic simulations were used. The technique of ordinary kriging does not reproduce satisfactorily the global statistics of the Ca contents. The use of simulation techniques allows reproducing the spatial variability pattern of Ca contents. The techniques of sequential Gaussian simulation and simulated annealing showed significant variations in the contents of Ca in the small scale.</p>http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662015000800767&lng=en&tlng=engeoestatísticainterpolação espacialsimulação sequencial gaussianasimulação do arrefecimento simulado |
| spellingShingle | Gener T. Pereira Daniel D. B. Teixeira Zigomar M. de Souza Ismênia R. de Oliveira José Marques Stochastic simulations of calcium contents in sugarcane area Revista Brasileira de Engenharia Agrícola e Ambiental geoestatística interpolação espacial simulação sequencial gaussiana simulação do arrefecimento simulado |
| title | Stochastic simulations of calcium contents in sugarcane area |
| title_full | Stochastic simulations of calcium contents in sugarcane area |
| title_fullStr | Stochastic simulations of calcium contents in sugarcane area |
| title_full_unstemmed | Stochastic simulations of calcium contents in sugarcane area |
| title_short | Stochastic simulations of calcium contents in sugarcane area |
| title_sort | stochastic simulations of calcium contents in sugarcane area |
| topic | geoestatística interpolação espacial simulação sequencial gaussiana simulação do arrefecimento simulado |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662015000800767&lng=en&tlng=en |
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