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	Provedor de dados Rev. Bras. Ciênc. Solo (6) Autor van Lier,Quirijn de Jong (6) Pinheiro,Everton Alves Rodrigues (2) Armindo,Robson André (1) Correa,Marcus Metri (1) Gubiani,Paulo Ivonir (1) Inforsato,Leonardo (1) Melo,Marina Luciana Abreu de (1) Miranda,Jarbas Honorio de (1) Oliveira,Luciano Alves de (1) Ono,Gabriela Massame (1) Ramos,Maria Elisa Palma (1) Reis,Aline Mari Huf dos (1) Silva,Lívia Previatello da (1) Turek,Maria Eliza (1) Mais... Palavra-chave Anoxic stress (1) Drought stress (1) Empirical equations (1) Field capacity (1) Hydraulic properties (1) Inverse parameter optimization (1) Leaching (1) Mathematical models (1) Mechanical stress (1) Miscible displacement (1) Modeling (1) Retention (1) Sampling (1) Soil available water (1) Soil physics (1) Soil water retention (1) Solute transport (1) Tropical soils (1) Wilting point (1) Mais... Tipo do documento Info:eu-repo/semantics/article (5) Info:eu-repo/semantics/other (1) Ano 2019 (2) 2018 (1) 2016 (2) 2015 (1) País Brazil (6) Idioma Inglês (6)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 6 Primeira ... 1 ... Última Hydrostatic Equilibrium between Soil Samples and Pressure Plates Used in Soil Water Retention Determination: Consequences of a Questionable Assumption Rev. Bras. Ciênc. Solo van Lier,Quirijn de Jong; Pinheiro,Everton Alves Rodrigues; Inforsato,Leonardo. ABSTRACT Soil water retention is among the soil hydraulic properties most routinely measured in studies of soil physics and related areas. This property is used in dynamic simulations of vadose zone processes such as soil water availability, surface boundary processes of evaporation and infiltration, and the fate of soil pollutants. The most common measurement technique consists in establishing a hydrostatic equilibrium between an initially saturated soil sample and a porous medium at a certain tension on a tension table or pressure plate. However, there is reasonable doubt about the assumed hydrostatic equilibrium, especially in the dry range at low pressure heads. In this study we compared the traditional pressure plate apparatus protocol to an inverse... Tipo: Info:eu-repo/semantics/article Palavras-chave: Inverse parameter optimization; Soil available water; Wilting point. Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832019000100408 Some questions about Yang et al. “Quantitative assessment of soil physical quality in northern China based on S-theory” [Rev Bras Cienc Solo. 2015;39:1311-21] Rev. Bras. Ciênc. Solo van Lier,Quirijn de Jong. Tipo: Info:eu-repo/semantics/other Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832016000100901 BEYOND THE “LEAST LIMITING WATER RANGE”: RETHINKING SOIL PHYSICS RESEARCH IN BRAZIL Rev. Bras. Ciênc. Solo van Lier,Quirijn de Jong; Gubiani,Paulo Ivonir. As opposed to objective definitions in soil physics, the subjective term “soil physical quality” is increasingly found in publications in the soil physics area. A supposed indicator of soil physical quality that has been the focus of attention, especially in the Brazilian literature, is the Least Limiting Water Range (RLL), translated in Portuguese as "Intervalo Hídrico Ótimo" or IHO. In this paper the four limiting water contents that define RLLare discussed in the light of objectively determinable soil physical properties, pointing to inconsistencies in the RLLdefinition and calculation. It also discusses the interpretation of RLL as an indicator of crop productivity or soil physical quality, showing its inability to consider common phenological and... Tipo: Info:eu-repo/semantics/article Palavras-chave: Modeling; Field capacity; Drought stress; Mechanical stress; Anoxic stress. Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832015000400925 Retention and Solute Transport Properties in Disturbed and Undisturbed Soil Samples Rev. Bras. Ciênc. Solo Silva,Lívia Previatello da; van Lier,Quirijn de Jong; Correa,Marcus Metri; Miranda,Jarbas Honorio de; Oliveira,Luciano Alves de. ABSTRACT Solute transport parameters can be determined in miscible displacement experiments, usually performed in columns with disturbed (sieved) soil samples. Experiments with undisturbed samples are uncommon, due to the difficulty of taking undisturbed samples at the size required for these experiments. Structural alteration of the disturbed material implies modifications in the pore geometry that determines hydraulic properties, including hydraulic conductivity and retention and properties related to miscible displacement. An existing model for prediction of breakthrough curves based on retention properties was tested using material from a medium-textured Ferralsol, and alterations caused by sample disturbance were investigated. Soil water retention... Tipo: Info:eu-repo/semantics/article Palavras-chave: Sampling; Retention; Miscible displacement; Solute transport; Leaching. Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832016000100421 An Alert Regarding a Common Misinterpretation of the Van Genuchten α Parameter Rev. Bras. Ciênc. Solo van Lier,Quirijn de Jong; Pinheiro,Everton Alves Rodrigues. ABSTRACT Among the equations available to describe the relation between matric potential and soil water content, the soil water retention function, the most commonly used is the equation proposed by Van Genuchten in his 1980 landmark paper. In soil physics literature, especially in Brazil, several authors relate the inverse of the Van Genuchten parameter α to the air-entry pressure. This study aimed to show this common interpretation to be erroneous, as 1/α corresponds to water contents lower than saturation. The deviation depends on the m parameter. In fact, α is merely a scaling parameter relative to the matric potential axis. Recognizing this mathematical fact may improve the interpretation of soil hydraulic properties based on water retention parameters. Tipo: Info:eu-repo/semantics/article Palavras-chave: Soil water retention; Soil physics; Empirical equations. Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832018000100415 Performance of the Groenevelt and Grant Model for Fitting Soil Water Retention Data from Brazilian Soils Rev. Bras. Ciênc. Solo Armindo,Robson André; van Lier,Quirijn de Jong; Turek,Maria Eliza; Reis,Aline Mari Huf dos; Melo,Marina Luciana Abreu de; Ramos,Maria Elisa Palma; Ono,Gabriela Massame. ABSTRACT The soil water retention curve (SWRC) is essential for vadose zone hydrological modeling and related applications. In 2004, Groenevelt and Grant (GRT) presented a mathematical model for describing the SWRC and reported its mathematical versatility and good fit to soils from a Dutch database. In order to evaluate the application of GRT to SWRCs of Brazilian soils, we aimed to analyze the performance of GRT for 72 soils from Brazil. Besides that, the obtained results with GRT for these soils were compared to the fitting performance of the most frequently used models: Brooks and Corey (BC) and van Genuchten-Mualem (VGM). The three models were fitted to available soil water retention data by minimizing the sum of square errors. The Pearson correlation... Tipo: Info:eu-repo/semantics/article Palavras-chave: Tropical soils; Hydraulic properties; Mathematical models. Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832019000100407 Registros recuperados: 6 Primeira ... 1 ... Última

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