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dc.creatorRibeiro, Bruno Teixeira-
dc.creatorCosta, Adriana Monteiro da-
dc.creatorSilva, Bruno Montoani-
dc.creatorFranco, Fernando Oliveira-
dc.creatorBorges, Camila Silva-
dc.date.accessioned2019-02-25T12:45:46Z-
dc.date.available2019-02-25T12:45:46Z-
dc.date.issued2018-12-
dc.identifier.citationRIBEIRO, B. T. et al. Assessing pedotransfer functions to estimate the soil water retention. Bioscience Journal, Uberlândia, v. 34, p. 177-188, Dec. 2018. Suplemento 1.pt_BR
dc.identifier.urihttp://www.seer.ufu.br/index.php/biosciencejournal/article/view/42371pt_BR
dc.identifier.urihttp://repositorio.ufla.br/jspui/handle/1/33013-
dc.description.abstractConsidering the importance of soil water retention for agricultural and environmental purposes, the objective of this study was to assess three pedotransfer functions (PTFs) used to estimate the soil moisture at field capacity (FC) based on soil attributes easily determined. A collection of 17 soils from the Cerrado and Pantanal biomes, including surface and subsurface horizons, was used. PTF-1 considers clay, organic matter, coarse sand, and microporosity; PTF-2 clay, total sand, and organic matter; and PTF-3 only microporosity. The estimated FC values were correlated to soil moisture values measured at different soil water potentials (0, 6, 10, 33, 100, 300, and 1500 kPa) to verify which potential corresponded to estimated FC. The data were subjected to regression analysis and Mann-Whitney rank-sum test to compare predicted and measured values and to principal component analysis (PCA). The analysis of the full dataset indicated that there was a strong correlation (R 0.84–0.91; R2 0.71–0.82; RMSE 0.07–0.09) between estimated FC and soil water retention measured at potentials of 10 kPa and 33 kPa. FC estimated by PTF-3 correlated better with water holding capacity at 6 kPa. When the PTFs were reapplied to homogeneous soil groups (identified by PCA analysis), the correlation between predicted and measured FC was decreased.pt_BR
dc.languageen_USpt_BR
dc.publisherUniversidade Federal de Uberlândiapt_BR
dc.rightsrestrictAccesspt_BR
dc.sourceBioscience Journalpt_BR
dc.subjectSoil-water retentionpt_BR
dc.subjectPrincipal component analysispt_BR
dc.subjectSoil moisturept_BR
dc.subjectRetenção de água no solopt_BR
dc.subjectAnálise do componente principalpt_BR
dc.subjectUmidade do solopt_BR
dc.titleAssessing pedotransfer functions to estimate the soil water retentionpt_BR
dc.title.alternativeValidação de funções de pedotransferência para estimativa da retenção de água no solopt_BR
dc.typeArtigopt_BR
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