Mathematical models of soil moisture transfer: Importance of experimental assurance and upper boundary conditions

Abstract

Soil moisture movement strongly depends on the upper boundary conditions (presence or absence of hydraulic pressure). The field experiments on the agrogrey medium loamy soil have shown that in the presence of pressure the movement follows preferential ways of migration. The accuracy of simulating this process depends on the initial experimental reliability of the mathematical model. This paper proposes an approach for the comparative evaluation of different methods of obtaining hydrophysical data for precise predictable modeling at the pedon scale. It should be noted that all the results are given for only one soil type, so one cannot confidently assert the relevance of similar data for other soil types.