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Water 2017, 9(7), 460; doi:10.3390/w9070460

A Simple Model of the Variability of Soil Depths

Department of Earth and Environmental Sciences, Wright State University, 3640 Colonel Glenn Highway, Dayton, OH 45435, USA
Earth Sciences Division, E. O. Lawrence Berkeley Laboratory, 1 Cyclotron Road, Berkeley, CA 94720, USA
Department of Physics and Department of Earth & Environmental Sciences, Wright State University, 3640 Colonel Glenn Highway, Dayton, OH 45435, USA
Department of Petroleum and Geosystems Engineering, University of Texas at Austin, Austin, TX 78712, USA
Author to whom correspondence should be addressed.
Received: 27 March 2017 / Revised: 13 June 2017 / Accepted: 19 June 2017 / Published: 26 June 2017
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Soil depth tends to vary from a few centimeters to several meters, depending on many natural and environmental factors. We hypothesize that the cumulative effect of these factors on soil depth, which is chiefly dependent on the process of biogeochemical weathering, is particularly affected by soil porewater (i.e., solute) transport and infiltration from the land surface. Taking into account evidence for a non-Gaussian distribution of rock weathering rates, we propose a simple mathematical model to describe the relationship between soil depth and infiltration flux. The model was tested using several areas in mostly semi-arid climate zones. The application of this model demonstrates the use of fundamental principles of physics to quantify the coupled effects of the five principal soil-forming factors of Dokuchaev. View Full-Text
Keywords: soil formation; percolation; infiltration; erosion soil formation; percolation; infiltration; erosion

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Yu, F.; Faybishenko, B.; Hunt, A.; Ghanbarian, B. A Simple Model of the Variability of Soil Depths. Water 2017, 9, 460.

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