Revised soil erodibility K-factor for soils in the Czech Republic
J. Vopravil, M. Janeček, M. Tipplhttps://doi.org/10.17221/2100-SWRCitation:Vopravil J., Janeček M., Tippl M. (2007): Revised soil erodibility K-factor for soils in the Czech Republic. Soil & Water Res., 2: 1-9.
In the territory of the Czech Republic there are more than 50% of agricultural soils exposed to water erosion; it is a very urgent problem both at present and for the future. It must be solved now when there is still something to be protected. It is rather complicated to describe the soil properties in terms of soil susceptibility to water erosion because it is a complex relation in which many factors participate. For the complex evaluation of all main factors participating in erosion origination it is possible to apply the Universal Soil Loss Equation (USLE). It consists of six factors interacting with each other and participating in the origination of soil erosion. One of these factors is the soil erodibility factor (K-factor), the revision of which for soil conditions of the CR is the subject of this study. In total ca. 5000 soil pits from the whole territory of the country were processed and evaluated in detail. The main results of this study are K-factor values (means and variances) for the soil types, subtypes and varieties (represented in the database) according to the Taxonomic Classification System of Soils of the Czech Republic.Keywords:
water erosion; soil erodibility; soil structure; permeability; soil texture; organic matter