Package net.simplace.sim.components.soil.pedotransfer

Class TextureClassesFunctions

java.lang.Object
net.simplace.sim.components.soil.pedotransfer.TextureClassesFunctions
All Implemented Interfaces:
TextureClassPedoTransferFunction
public class TextureClassesFunctions extends Object implements TextureClassPedoTransferFunction
Texture Class Functions are developed to determine soil hydraulic properties

... e.g. total porosity, residual water, field capacity, permanent wilting point, saturated hydraulic conductivity, ALPHA, and N for different soil texture classes based on USDA soil texture classification. The input data used for this estimation are the percentage of silt and clay, organic matter and bulk density.

References

  • Rawls, WJ, Ahuja, LR, Maidment, D. (1993). Handbook of hydrology (1st ed., p. 1442). New York: McGraw-Hill.

Units

ParametersUnits
Total PorosityVol%
Effective PorosityVol%
Residual WaterVol%
Bubble Pressurecm
Pore Size DistributionVol%
Field CapacityVol%
Permanent Wilting PointVol%
Saturated Hydraulic Conductivitycm/h or m/s
ALPHA(1/m)

N

K > 0, a > 0, n > 1 and -10 < l < 10

Author:
Andreas Enders

  • Constructor Summary

    Constructors
    Constructor
    Description
    TextureClassesFunctions()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    double
    alpha(String aTextureClass, double aBulkDensity, double aOrganicMatterPercentage, boolean aIsTopsoil)
     
    int
    getTextureClassIndex(String aTextureClass, double aBulkDensity)
     
    double
    Ks(String aTextureClass, double aBulkDensity, double aOrganicMatterPercentage, boolean aIsTopsoil)
     
    double
    l(String aTextureClass, double aBulkDensity, double aOrganicMatterPercentage, boolean aIsTopsoil)
     
    double
    m(String aTextureClass, double aBulkDensity, double aOrganicMatterPercentage, boolean aIsTopsoil)
     
    double
    n(String aTextureClass, double aBulkDensity, double aOrganicMatterPercentage, boolean aIsTopsoil)
     
    String
    textureClass(double aClayPercentage, double aSiltPercentage)
     
    double
    tr(String aTextureClass, double aBulkDensity, double aOrganicMatterPercentage, boolean aIsTopsoil)
     
    double
    WaterContent(double aPsi, String aTextureClass, double aBulkDensity, double aOrganicMatterPercentage, boolean aIsTopsoil)
     

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait