Hydrological modeling of the unsaturated zone — Evaluation of uncertainties related to the FAO soil classification system

Kozma, Zsolt and Ács, Tamás and Koncsos, László (2013) Hydrological modeling of the unsaturated zone — Evaluation of uncertainties related to the FAO soil classification system. Pollack Periodica, 8 (3). pp. 163-174. ISSN 1788-1994

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Abstract

An essential input for environmental studies, especially for hydrological simulations is the soil information, which is usually provided by spatial soil databases. Despite the growing number of related analyses little is known about the uncertainty associated to databases. This study aimed to evaluate this issue. (i) the World Soil Classification System was used to classify soil horizons of the Unsaturated Soil Hydrologic Database of Hungary, (ii) the resulting soil classes were statistically analyzed, (iii) various static measures were derived and dynamic numerical simulations were carried out to assess the uncertainties of the classification method from hydrologic viewpoint. The results question the reliability of the FAO method.

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