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Scaling Hydraulic Properties of Forest Soils by Dr Hendrayanto; Ken'ichirou Kosugi; Takahisa Mizuyama is a Environmental Science article available to read on EtoBox.

What is Scaling Hydraulic Properties of Forest Soils about?

For the purpose of characterizing spatial variability of soil hydraulic properties on a forested hillslope, ®ve diering scaling methods were examined using the data set for 30 undisturbed forest soils: scaling of water retention curves, scaling of hydraulic conductivity curves, and simultaneous scaling of both water retention and conductivity curves. For the scaling of conductivity curves and the simultaneous scaling, the soil-poretortuosity parameter in a conductivity model was either ®xed at a constant or treated as a ®tted parameter. Results showed that the set of scaling factors and reference parameters derived by the separate scaling of water retention curves was dierent from that derived by the separate scaling of conductivity curves. Moreover, the separate scaling methods resulted in large estimation errors in either eective saturation or conductivity. Optimizing the tortuosity parameter was eective in improving scaling results. It was concluded that the simultaneous scaling with a ®tted pore-tortuosity parameter was the best among the ®ve methods tested in this study. The obtained scaling factors obeyed the lognormal distribution rather than the normal distribution. The var

Who reads Scaling Hydraulic Properties of Forest Soils?

Author

Dr Hendrayanto; Ken'ichirou Kosugi; Takahisa Mizuyama

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Inc.; Wiley (ISSN 0885-6087)

Published

2000

Language

EN

Field

Environmental Science (Physical Sciences)