Methods for Estimating the Drainable Porosity in Nonsteady Drainage Formulas
The drainable porosity is one of the most important parameters for subsurface drainage design. At present time in most drainage formulas the specific yield is taken to be a constant value. As the existing concepts of specific yield differ greatly, the methods for estimating this parameter also vary.
KeywordsHydraulic Conductivity Water Table Specific Yield Water Table Depth Water Retention Curve
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