E3S Web of Conferences (Jan 2020)

Modeling the hydrophysical soil properties and comparative analysis for three systems of functions

  • Terleev Vitaly,
  • Ginevsky Roman,
  • Lazarev Viktor,
  • Nikonorov Aleksandr,
  • Topaj Alexander,
  • Dunaieva Ielizaveta,
  • Petrushin Aleksey,
  • Mitrofanova Olga,
  • Zakharova Elena

DOI
https://doi.org/10.1051/e3sconf/202017509016
Journal volume & issue
Vol. 175
p. 09016

Abstract

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A functional description of the hydrophysical properties of the soil as a capillary-porous medium is presented. The described functions of water retention capacity and hydraulic conductivity of the soil have common parameters, which are interpreted within the framework of physical and statistical concepts. The practical significance of the proposed functions lies in the fact that the volume of labor-intensive field measurements necessary, for example, for modeling the dynamics of soil moisture, is significantly reduced. To identify the parameters of these functions, it is sufficient to use data only on the water retention capacity of the soil. The parameters identified in this way can be used to predict the ratio of the hydraulic conductivity of the soil to the moisture filtration coefficient. The presented system of the hydrophysical functions of the soil is compared with world analogues using literature data on soils of different texture.