A simple method for estimating design hydraulic loading rates in ...

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Bouma Equation• Bouma (1975) developed simple equation forestimating trench bottom fluxK h h Z0−s+bsZb= Kh ( )• K bs = biomat saturated hydraulic conductivity• Z b = biomat thickness• h 0 = height of ponding in trench• h s = soil matric potential below biomat• K(h s ) = soil unsaturated hydraulic conductivity belowbiomatbs
Bouma EquationKh ( s)Hydraulic Conductivity or Biomat Flux (cm/d)1 . 1001010.10.010 20 40 60 80 10010 3 Absolute Value of Matric Potential Head (cm)?
Page 1 and 2: A Simple Method for EstimatingDesig
Page 3 and 4: Absorption Field Trench
Page 5: Design Hydraulic Loading Rate• Si
Page 9 and 10: Bouma EquationHydraulic Conductivit
Page 11 and 12: Objectives• Develop simple method
Page 13: Biomat Properties• Finch et al (2
Page 16: Deep water table201816Bouma bottom
Page 21 and 22: Deep water table2018Modified Bouma
Page 23 and 24: Hydraulic Conductivity or Biomat Fl
Page 31: Conclusions• Modified Bouma equat

A simple method for estimating design hydraulic loading rates in ...

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