Testing the Pore-Solid Fractal Model for the Soil Water Retention Function

2005 ◽  
Vol 69 (3) ◽  
pp. 776-782 ◽  
Author(s):  
Kang Wang ◽  
Renduo Zhang ◽  
Fuqin Wang
Keyword(s):  
Soil Water ◽  
Water Retention ◽  
Fractal Model ◽  
Retention Function ◽  
Soil Water Retention

scholarly journals A Fractal Model to Interpret Porosity-Dependent Hydraulic Properties for Unsaturated Soils

2019 ◽  
Vol 2019 ◽  
pp. 1-13 ◽  
Author(s):  
Annan Zhou ◽  
Yang Fan ◽  
Wen-Chieh Cheng ◽  
Junran Zhang
Keyword(s):  
Fractal Dimension ◽  
Soil Water ◽  
Pore Volume ◽  
Unsaturated Soils ◽  
Hydraulic Properties ◽  
Water Retention ◽  
Pore Radius ◽  
Fractal Model ◽  
Soil Water Retention ◽  
Hydraulic Behaviour

This paper presents a simple fractal model to quantify the effects of initial porosity on the soil-water retention curve and hydraulic conductivity of unsaturated soils. In the proposed conceptual model, the change of maximum pore radius, which largely determines the change of the air-entry value, is directly related to the fractal dimension of pore volume (D) and porosity change. The hydraulic properties of unsaturated soils are then governed by the maximum pore radius, the fractal dimension of pore volume (D), and the fractal dimension of drainable pore volume (Dd ≤ D). The new fractal model removes the empirical fitting parameters that have no physical meaning from existing models for porosity-dependent water retention and hydraulic behaviour and employs parameters of fractal dimensions that are intrinsic to the nature of the fractal porous materials. The proposed model is then validated against experimental data from the literature on soil-water retention behaviour and unsaturated conductivity.

scholarly journals Predicting the Campbell Soil Water Retention Function: Comparing Visible-Near-Infrared Spectroscopy with Classical Pedotransfer Function

2018 ◽  
Vol 17 (1) ◽  
pp. 170169 ◽  
Author(s):  
Zampela Pittaki-Chrysodonta ◽  
Per Moldrup ◽  
Maria Knadel ◽  
Bo V. Iversen ◽  
Cecilie Hermansen ◽  
...  
Keyword(s):  
Infrared Spectroscopy ◽  
Soil Water ◽  
Near Infrared Spectroscopy ◽  
Water Retention ◽  
Near Infrared ◽  
Retention Function ◽  
Pedotransfer Function ◽  
Soil Water Retention

SCALING OF SOIL WATER RETENTION USING A FRACTAL MODEL

Soil Science ◽  
1995 ◽  
Vol 159 (2) ◽  
pp. 99-104 ◽  
Author(s):  
YA. A. PACHEPSKY ◽  
R. A. SHCHERBAKOV ◽  
L. P. KORSUNSKAYA
Keyword(s):  
Soil Water ◽  
Water Retention ◽  
Fractal Model ◽  
Soil Water Retention
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