The influence of stony soil properties on water dynamics modeled by the HYDRUS model

Title:

The influence of stony soil properties on water dynamics modeled by the HYDRUS model

Creator:

Hlaváčiková, Hana, Novák, Viliam, Kostka, Zdeněk, Danko, Michal, and Hlavčo, Jozef

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:a5bffa3c-3190-4869-bccc-e345f4944ad6
uuid:a5bffa3c-3190-4869-bccc-e345f4944ad6
doi:10.1515/johh-2017-0052

Subject:

rock fragments, soil water retention, water storage, outflow, numerical modeling, and HYDRUS-1D

Type:

article, model:article, and TEXT

Description:

Stony soils are composed of two fractions (rock fragments and fine soil) with different hydrophysical characteristics. Although stony soils are abundant in many catchments, their properties are still not well understood. This manuscript presents an application of the simple methodology for deriving water retention properties of stony soils, taking into account a correction for the soil stoniness. Variations in the water retention of the fine soil fraction and its impact on both the soil water storage and the bottom boundary fluxes are studied as well. The deterministic water flow model HYDRUS-1D is used in the study. The results indicate that the presence of rock fragments in a moderate-to-high stony soil can decrease the soil water storage by 23% or more and affect the soil water dynamics. Simulated bottom fluxes increased or decreased faster, and their maxima during the wet period were larger in the stony soil compared to the non-stony one.

Language:

Slovak

Rights:

http://creativecommons.org/publicdomain/mark/1.0/
policy:public

Source:

Journal of hydrology and hydromechanics | 2018 Volume:66 | Number:2

Harvested from:

CDK

Metadata only:

false