Use este identificador para citar ou linkar para este item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1092118
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dc.contributor.authorTAVARES, R. L. M.
dc.contributor.authorOLIVEIRA, S. R. de M.
dc.contributor.authorBARROS, F. M. M. de
dc.contributor.authorFARHATE, C. V. V.
dc.contributor.authorSOUZA, Z. M. de
dc.contributor.authorLA SCALA JUNIOR, N.
dc.date.accessioned2018-06-02T00:35:29Z-
dc.date.available2018-06-02T00:35:29Z-
dc.date.created2018-06-01
dc.date.issued2018
dc.identifier.citationScientia Agricola, Piracicaba, v. 74, n. 4, p. 281-287, July/Aug. 2018.
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1092118-
dc.descriptionABSTRACT: The Random Forest algorithm is a data mining technique used for classifying attributes in order of importance to explain the variation in an attribute-target, as soil CO2 flux. This study aimed to identify prediction of soil CO2 flux variables in management systems of sugarcane through the machine-learning algorithm called Random Forest. Two different management areas of sugarcane in the state of São Paulo, Brazil, were selected: burned and green. In each area, we assembled a sampling grid with 81 georeferenced points to assess soil CO2 flux through automated portable soil gas chamber with measuring spectroscopy in the infrared during the dry season of 2011 and the rainy season of 2012. In addition, we sampled the soil to evaluate physical, chemical, and microbiological attributes. For data interpretation, we used the Random Forest algorithm, based on the combination of predicted decision trees (machine learning algorithms) in which every tree depends on the values of a random vector sampled independently with the same distribution to all the trees of the forest. The results indicated that clay content in the soil was the most important attribute to explain the CO2 flux in the areas studied during the evaluated period. The use of the Random Forest algorithm originated a model with a good fit (R2 = 0.80) for predicted and observed values.
dc.language.isoengeng
dc.rightsopenAccesseng
dc.subjectGreen sugarcane
dc.subjectMineração de dados
dc.subjectData mining
dc.subjectRandom Forest algorithm
dc.titlePrediction of soil CO2 flux in sugarcane management systems using the Random Forest approach.
dc.typeArtigo de periódico
dc.date.updated2018-06-06T11:11:11Zpt_BR
dc.subject.thesagroSaccharum Officinarum
dc.subject.thesagroArgila
dc.subject.thesagroCana de Açúcar
dc.subject.nalthesaurusSoil respiration
dc.subject.nalthesaurusClay
dc.subject.nalthesaurusSoil organic carbon
dc.subject.nalthesaurusSugarcane
riaa.ainfo.id1092118
riaa.ainfo.lastupdate2018-06-06 -03:00:00
dc.identifier.doihttp://dx.doi.org/10.1590/1678-992X-2017-0095
dc.contributor.institutionROSE LUIZA MORAES TAVARES, Rio Verde University; STANLEY ROBSON DE MEDEIROS OLIVEIRA, CNPTIA; FLÁVIO MARGARITO MARTINS DE BARROS, Feagri/Unicamp; CAMILA VIANA VIEIRA FARHATE, Feagri/Unicamp; ZIGOMAR MENEZES DE SOUZA, Feagri/Unicamp; NEWTON LA SCALA JUNIOR, FCAV/Unesp.
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