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2. Using Table 4.1 below, use the Van Genuchten equations to plot (1) soil retention curves and (2) hydraulic conductivity as a function of effective saturation (Se) for a. clay loam b. silt c. silty clay d. sand For your retention curve, plot pressure head (a.k.a. matric potential) on the y axis, ranging from 0 to -500 cm. TABLE 4.1 Average values of the van Genuchten soil parameters obtained by experimental means (Carsel and Parrish, 1988). Soil Texture Clay loom Loam Loamy sand Silt Silt loam Silty clay Silty clay loam Sand Sandy clay Sandy clay loam Sandy loom Porosity (ratio) 0.41 0.43 0.41 0.46 0.45 0.36 0.43 0.43 0.38 0.39 0.41 Residual Water Content (ratio) 0.095 0.078 Saturated a Parameter Hydraulic (cm) Conductivity (cm/hour) 0.26 1.04 0.019 0.036 0.124 0.016 0.020 0.005 n Parameter (dimensionless) 0.010 0.145 0.027 0.059 0.075 1.31 1.56 0.057 14.59 0.034 0.25 0.067 0.45 0.070 0.02 0.089 0.07 0.045 29.70 0.100 0.12 0.100 1.31 0.065 4.42 From Fetter (1999) Contaminant Hydrogeology 2.28 1.37 1.41 1.09 1.23 2.68 1.23 1.48 1.89

2. Using Table 4.1 below, use the Van Genuchten equations to plot (1) soil retention curves and (2) hydraulic conductivity as a function of effective saturation (Se) for a. clay loam b. silt c. silty clay d. sand For your retention curve, plot pressure head (a.k.a. matric potential) on the y axis, ranging from 0 to -500 cm. TABLE 4.1 Average values of the van Genuchten soil parameters obtained by experimental means (Carsel and Parrish, 1988). Soil Texture Clay loom Loam Loamy sand Silt Silt loam Silty clay Silty clay loam Sand Sandy clay Sandy clay loam Sandy loom Porosity (ratio) 0.41 0.43 0.41 0.46 0.45 0.36 0.43 0.43 0.38 0.39 0.41 Residual Water Content (ratio) 0.095 0.078 Saturated a Parameter Hydraulic (cm) Conductivity (cm/hour) 0.26 1.04 0.019 0.036 0.124 0.016 0.020 0.005 n Parameter (dimensionless) 0.010 0.145 0.027 0.059 0.075 1.31 1.56 0.057 14.59 0.034 0.25 0.067 0.45 0.070 0.02 0.089 0.07 0.045 29.70 0.100 0.12 0.100 1.31 0.065 4.42 From Fetter (1999) Contaminant Hydrogeology 2.28 1.37 1.41 1.09 1.23 2.68 1.23 1.48 1.89

Applications and Investigations in Earth Science (9th Edition)
Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
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2. Using Table 4.1 below, use the Van Genuchten equations to plot (1) soil retention curves and (2) hydraulic conductivity as a function of effective saturation (Se) for a. clay loam b. silt c. silty clay d. sand For your retention curve, plot pressure head (a.k.a. matric potential) on the y axis, ranging from 0 to -500 cm. TABLE 4.1 Average values of the van Genuchten soil parameters obtained by experimental means (Carsel and Parrish, 1988). Soil Texture Clay loam Loam Loamy sand Silt Silt loom Silty clay Silty clay loam Sand Sandy clay Sandy clay loam Sandy loam Porosity (ratio) 0.41 0.43 0.41 0.46 0.45 0.36 0.43 0.43 0.38 0.39 0.41 Residual Water Content (ratio) 0.095 0.078 0.057 0.034 0.067 0.070 0.089 0.045 0.100 0.100 0.065 Saturated a Parameter Hydraulic (cm) Conductivity (cm/hour) 0.26 1.04 14.59 0.25 0.45 0.02 0.07 29.70 0.019 0.036 0.124 0.016 0.020 0.005 0.010 0.145 0.027 0.059 0.075 n Parameter (dimensionless) 1.31 1.56 2.28 1.37 1.41 1.09 1.23 2.68 1.23 1.48 1.89 0.12 1.31 4.42 From Fetter (1999) Contaminant Hydrogeology
Transcribed Image Text:2. Using Table 4.1 below, use the Van Genuchten equations to plot (1) soil retention curves and (2) hydraulic conductivity as a function of effective saturation (Se) for a. clay loam b. silt c. silty clay d. sand For your retention curve, plot pressure head (a.k.a. matric potential) on the y axis, ranging from 0 to -500 cm. TABLE 4.1 Average values of the van Genuchten soil parameters obtained by experimental means (Carsel and Parrish, 1988). Soil Texture Clay loam Loam Loamy sand Silt Silt loom Silty clay Silty clay loam Sand Sandy clay Sandy clay loam Sandy loam Porosity (ratio) 0.41 0.43 0.41 0.46 0.45 0.36 0.43 0.43 0.38 0.39 0.41 Residual Water Content (ratio) 0.095 0.078 0.057 0.034 0.067 0.070 0.089 0.045 0.100 0.100 0.065 Saturated a Parameter Hydraulic (cm) Conductivity (cm/hour) 0.26 1.04 14.59 0.25 0.45 0.02 0.07 29.70 0.019 0.036 0.124 0.016 0.020 0.005 0.010 0.145 0.027 0.059 0.075 n Parameter (dimensionless) 1.31 1.56 2.28 1.37 1.41 1.09 1.23 2.68 1.23 1.48 1.89 0.12 1.31 4.42 From Fetter (1999) Contaminant Hydrogeology
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