Modelagem da infiltração em solos com encrostamento superficial. Parte I: modelo GAML para solos estratificados

A B ST R A C T The aim of this study was to evaluate the Green-Ampt-Mein-Larson (GAML) model and GAML model modified by Moore (1981) for layered soils, in the simulation of water infiltration process in crusting soil. The infiltration tests were performed on a Cambisol without coverage, and three successive precipitations at intervals of 24 h. For the inclusion of the soil crust layer in the input parameters of the GAML model, the value of hydraulic conductivity in the transmission zone (Kt) was equal to stable infiltration rate (Tie) obtained in bare soil, and in the GAML model for layered soils, a surface layer (crust) were proposed with a thickness of 5 mm and soil crust saturated hydraulic conductivity (Kc) determined from experimental data, and equal to 10 and 25% of the saturated hydraulic conductivity (K 0 ). In the second and third rainfall, the combinations without consideration of crust did not achieve good results and overestimated infiltration rate over time. For the model of GAML, the best results were obtained using Kt = Tie determined in bare soil, while in Model GAML for layered soils, were obtained with a value of Kc = 10 and 25% of K 0 .

[1]  F. F. Pruski,et al.  Adequação dos parâmetros do modelo de Green-Ampt-Mein-Larson em condições de campo , 2010 .

[2]  D. Robinson,et al.  An experimental study of crust development on chalk downland soils and their impact on runoff and erosion , 2008 .

[3]  F. F. Pruski,et al.  Substituição dos parâmetros do modelo de Green-Ampt-Mein-Larson para estimativa da infiltração em alguns solos do Brasil , 2007 .

[4]  E. Souza,et al.  Efeito do encrostamento superficial nas propriedades hidráulicas de um solo cultivado , 2007 .

[5]  V. Chowdary,et al.  Study of infiltration process under different experimental conditions , 2006 .

[6]  L. R. Ahuja,et al.  Scaling analysis of space-time infiltration based on the universal multifractal model , 2006 .

[7]  F. F. Pruski,et al.  Resistência hidráulica da crosta formada em solos submetidos a chuvas simuladas , 2006 .

[8]  Rao S. Govindaraju,et al.  Role of run-on for describing field-scale infiltration and overland flow over spatially variable soils , 2004 .

[9]  F. F. Pruski,et al.  Modeling of water infiltration in soil under stratified conditions using the Green-Ampt equation , 2003 .

[10]  Rattan Lal,et al.  EXPERIMENTAL EVALUATION OF INFILTRATION MODELS FOR DIFFERENT LAND USE AND SOIL MANAGEMENT SYSTEMS , 2003 .

[11]  F. F. Pruski,et al.  Perdas de solo, nutrientes, matéria orgânica e efeitos microestruturais em Argissolo Vermelho-Amarelo sob chuva simulada , 2002 .

[12]  J. Kleijnen,et al.  Validation of models: statistical techniques and data availability , 1999, WSC'99. 1999 Winter Simulation Conference Proceedings. 'Simulation - A Bridge to the Future' (Cat. No.99CH37038).

[13]  E. Kato,et al.  Avaliação de modelos para previsão da infiltração de água em solos sob cerrado , 1998 .

[14]  Cícero Guilherme da Silva,et al.  Efeito do selamento superficial na condutividade hidráulica saturada da superfície de um solo sob cerrado , 1997 .

[15]  C. Valentin,et al.  Morphology, genesis and classification of surface crusts in loamy and sandy soils , 1992 .

[16]  W. J. Rawls,et al.  A procedure to predict green and ampt infiltration parameters , 1983 .

[17]  Ian D. Moore,et al.  Infiltration Equations Modified for Surface Effects , 1981 .

[18]  Curtis L. Larson,et al.  Modeling infiltration during a steady rain , 1973 .

[19]  W. Green,et al.  Studies on Soil Phyics. , 1911, The Journal of Agricultural Science.

[20]  Â. P. D. Camargo,et al.  Avaliação do desempenho de diferentes métodos de estimativa da evapotranspiração potencial no Estado de São Paulo, Brasil , 1997 .

[21]  R. E. Phillips,et al.  Comparison of Four Infiltration Models in Characterizing Infiltration Through Surface Mine Profiles , 1986 .

[22]  D. L. Brakensiek,et al.  Agricultural Management Effects on Soil Water Processes Part II: Green and Ampt Parameters for Crusting Soils , 1983 .

[23]  Donald C Slack,et al.  Modeling Infiltration Under Moving Sprinkler Irrigation Systems , 1978 .

[24]  W. Green.  Studies in soil physics : I. The flow of air and water through soils , 1911 .