Preprint Article Version 2 Preserved in Portico This version is not peer-reviewed

Hydrostructural Pedology, Culmination of the Systemic Approach of the Natural Environment

Version 1 : Received: 1 December 2020 / Approved: 4 December 2020 / Online: 4 December 2020 (17:15:12 CET)
Version 2 : Received: 28 December 2020 / Approved: 29 December 2020 / Online: 29 December 2020 (17:15:56 CET)

How to cite: Braudeau, E.; Mohtar, R.H. Hydrostructural Pedology, Culmination of the Systemic Approach of the Natural Environment. Preprints 2020, 2020120119 (doi: 10.20944/preprints202012.0119.v2). Braudeau, E.; Mohtar, R.H. Hydrostructural Pedology, Culmination of the Systemic Approach of the Natural Environment. Preprints 2020, 2020120119 (doi: 10.20944/preprints202012.0119.v2).

Abstract

The subject of this article is the dynamics of water in a soil pedostructure sample whose internal environment is subjected to a potential gradient created by the departure of water through surface evaporation. This work refers entirely to the results and conclusions of a fundamental theoretical study focused on the molecular thermodynamic equilibrium of the two aqueous phases of the soil pedostructure. The new concepts and descriptive variables of the hydro-thermodynamic equilibrium state of the soil medium, which have been established at the molecular level of the fluid phases of the pedostructure (water and air) in a previous article, are recalled here in the systemic paradigm of hydrostructural pedology. They allow access to the molecular description of water migration in the soil and go beyond the classical mono-scale description of soil water dynamics. We obtain a hydro-thermodynamic description of the soil's pedostructure at different hydro-functional scale levels including those relating to the water molecule and its atoms. The experimental results show a perfect agreement with the theory, validating at the same time the systemic approach which was the framework.

Subject Areas

Pedostructure; Systemic modelling; Systemic variables, hydro-thermodynamic equilibrium; Gibbs free energy; Fundamental thermodynamic variables; molecular, real and Eulerian fluxes, hydric conductivity of the pedostructure.

Comments (1)

Comment 1
Received: 29 December 2020
Commenter: ERIK BRAUDEAU
Commenter's Conflict of Interests: Author
Comment: One figure an one table were added in section 2.1
Figure 3 and Table 2(figure2 and table 1 in the first version) have been improved  in section 2.2.1
A part of calculus in section 3.4.1. (Application of Newton's law) was put in Appendix C
Some edits in the Discussion section
A conclusion section was added
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