Please use this identifier to cite or link to this item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1175452
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dc.contributor.authorSILVA, J. L. P. DA
dc.contributor.authorARAÚJO JÚNIOR, G. DO N.
dc.contributor.authorSILVA JUNIOR, F. B. DA
dc.contributor.authorSILVA, T. G. F. DA
dc.contributor.authorSILVA, J. B. A. DA
dc.contributor.authorSCHEIBEL, C. H.
dc.contributor.authorSILVA, M. V. DA
dc.contributor.authorMINGOTI, R.
dc.contributor.authorGIONGO, P. R.
dc.contributor.authorALMEIDA, A. C. DOS S.
dc.date.accessioned2025-05-09T16:48:04Z-
dc.date.available2025-05-09T16:48:04Z-
dc.date.created2025-05-09
dc.date.issued2025
dc.identifier.citationAgriEngineering, v. 7, n. 5, 2025.
dc.identifier.issn2624-7402
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1175452-
dc.descriptionAbstract: The scarcity of information on agricultural development in the semi-arid region of Alagoas limits the spatial understanding of this activity. Government data are generally numerical and lack spatial detail. Remote sensing emerges as an efficient alternative, providing accessible visualization of agricultural areas. This study evaluates the performance of MapBiomas in monitoring agricultural areas in the semi-arid region of Alagoas, comparing it to a Random Forest model adjusted for the region using higher-resolution images. The first methodology is based on land use and land cover (LULC) data from MapBiomas, an initiative that provides information on land use and land cover in Brazil. The second method employs the Random Forest model, calibrated for the region’s dry season, addressing cloud cover issues and allowing for the identification of irrigated agriculture. LULC data were subjected to a precision analysis using 200 points generated within the study areas, extracting LULC information for each coordinate. These points were overlaid on high-resolution images to assess model accuracy. Additionally, field visits were conducted to validate the identification of agriculture. The irrigated area data from the Random Forest model were correlated with irrigation records from SEMARH. MapBiomas presented a Kappa index of 0.74, with precision exceeding 90% for classes such as forest, natural pasture, non-vegetated area, and water bodies. However, the agriculture class obtained an F1 score of 0.56. The Random Forest model achieved a Kappa index of 0.82, with an F1 score of 0.79 for agriculture. The correlation between the total annual irrigated area data from Random Forest and SEMARH records was high (R = 0.85). The Random Forest model yielded better results in classifying agriculture in the semi-arid region of Alagoas compared to MapBiomas. However, classification limitations were observed in lowland areas due to spectral confusion caused by soil moisture accumulation.
dc.language.isoeng
dc.rightsopenAccess
dc.subjectRandom Forest
dc.subjectMapbiomas
dc.subjectLULC
dc.subjectCanal do Sertão
dc.subjectAgricultural monitoring
dc.subjectMapping of irrigated areas
dc.titlePerformance of Land Use and Land Cover Classification Models in Assessing Agricultural Behavior in the Alagoas Semi-Arid Region.
dc.typeArtigo de periódico
riaa.ainfo.id1175452
riaa.ainfo.lastupdate2025-05-09
dc.identifier.doihttps://doi.org/10.3390/agriengineering7050134
dc.contributor.institutionJOSÉ LUCAS PEREIRA DA SILVA, UNIVERSIDADE FEDERAL DE ALAGOAS; GEORGE DO NASCIMENTO ARAÚJO JÚNIOR, UNIVERSIDADE FEDERAL DE ALAGOAS; FRANCISCO BENTO DA SILVA JUNIOR, UNIVERSIDADE FEDERAL DE ALAGOAS; THIERES GEORGE FREIRE DA SILVA, UNIVERSIDADE FEDERAL RURAL DE PERNAMBUCO; JÉSSICA BRUNA ALVES DA SILVA, UNIVERSIDADE FEDERAL DE ALAGOAS; CHRISTOPHER HORVATH SCHEIBEL, UNIVERSIDADE FEDERAL DE ALAGOAS; MARCOS VINÍCIUS DA SILVA, UNIVERSIDADE FEDERAL DO MARANHÃO; RAFAEL MINGOTI, CNPM; PEDRO ROGERIO GIONGO, UNIVERSIDADE FEDERAL DE GOIÁS; ALEXSANDRO CLAUDIO DOS SANTOS ALMEIDA, UNIVERSIDADE FEDERAL DE ALAGOAS.
Appears in Collections:Artigo em periódico indexado (CNPM)

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