Abstract:A infiltração é o processo de entrada de água no solo através de sua superfície. O conhecimento desse processo é vital para estabelecer as diretrizes de conservação de solo e água, planejar e delinear sistemas de irrigação, indicando a quantidade de água disponível para as plantas, calcular taxas de recarga de água subterrânea, taxas de escoamento superficial em eventos de precipitação. Para obter os dados sobre a infiltração geralmente é empregado infiltrômetros, que são utilizados em ensaios de campo, sendo … Show more
“…The infiltration process can also be portrayed through physical or empirical mathematical models (FELIZARDO et al, 2020), with emphasis on the Horton and Kostiakov models, whose parameters can be calculated through theoretical equations or estimated through regression model, based on pre-determined infiltration data in the field (TOMASINI et al, 2010). Horton's empirical model, which is described in the form of an exponential function, is widely used to predict water behavior in soil infiltration processes (PAIXÃO et al, 2009;MELLEK et al, 2014).…”
Section: Introductionmentioning
confidence: 99%
“…Results of studies focused on invetigating infiltration behavior can be translated into infiltration curves, which can be used in hydrological studies, as well as in urban drainage or irrigation design projects (FELIZARDO et al, 2020). In light of the foregoing, the aim of the current study was to investigate the suitability of the Horton and Kostiakov models to predict water infiltration behavior in Cambisol, in an area close to the crop region in Irati City-PR.…”
Water infiltration into the soil plays key role in proper soil and water conservation and management processes. The aim of the current study is to assess water behavior in soil infiltration processes by using the Horton and Kostiakov models. Double-ring infiltrometer method was used to determine water infiltration into the soil. In addition, soil samples were collected at depths of 0-10 cm, 10-20 cm and 20-30 cm, to determine soil moisture. Cumulative infiltration (IA) and instantaneous infiltration rates per time interval (TiR) were calculated. Equations describing the investigated phenomena were adjusted, according to the Horton and Kostiakov models. High water infiltration rate was observed at the beginning of the process, likely due to low moisture level at the top soil layer. Both models tend to underestimate the initial infiltration rate value. However, the Horton model tends to overestimate most of the instantaneous infiltration values up to 25 minutes. The Kostiakov model, on the other hand, tends to overestimate most of the instantaneous infiltration rate values after 80 minutes. Despite the large fluctuation observed in TiR values in the soil, the assessed models have satisfactorily described the infiltration behavior at the experimental site. Based on the heat map analysis, the Kostiakov model was the one capable of determining the infiltration values closest to actual one.
“…The infiltration process can also be portrayed through physical or empirical mathematical models (FELIZARDO et al, 2020), with emphasis on the Horton and Kostiakov models, whose parameters can be calculated through theoretical equations or estimated through regression model, based on pre-determined infiltration data in the field (TOMASINI et al, 2010). Horton's empirical model, which is described in the form of an exponential function, is widely used to predict water behavior in soil infiltration processes (PAIXÃO et al, 2009;MELLEK et al, 2014).…”
Section: Introductionmentioning
confidence: 99%
“…Results of studies focused on invetigating infiltration behavior can be translated into infiltration curves, which can be used in hydrological studies, as well as in urban drainage or irrigation design projects (FELIZARDO et al, 2020). In light of the foregoing, the aim of the current study was to investigate the suitability of the Horton and Kostiakov models to predict water infiltration behavior in Cambisol, in an area close to the crop region in Irati City-PR.…”
Water infiltration into the soil plays key role in proper soil and water conservation and management processes. The aim of the current study is to assess water behavior in soil infiltration processes by using the Horton and Kostiakov models. Double-ring infiltrometer method was used to determine water infiltration into the soil. In addition, soil samples were collected at depths of 0-10 cm, 10-20 cm and 20-30 cm, to determine soil moisture. Cumulative infiltration (IA) and instantaneous infiltration rates per time interval (TiR) were calculated. Equations describing the investigated phenomena were adjusted, according to the Horton and Kostiakov models. High water infiltration rate was observed at the beginning of the process, likely due to low moisture level at the top soil layer. Both models tend to underestimate the initial infiltration rate value. However, the Horton model tends to overestimate most of the instantaneous infiltration values up to 25 minutes. The Kostiakov model, on the other hand, tends to overestimate most of the instantaneous infiltration rate values after 80 minutes. Despite the large fluctuation observed in TiR values in the soil, the assessed models have satisfactorily described the infiltration behavior at the experimental site. Based on the heat map analysis, the Kostiakov model was the one capable of determining the infiltration values closest to actual one.
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