Evalution of soil conservation technologies from the perspective of selected physical soil properties | Zhodnocení půdoochranných technologií z hlediska vybraných hydrofyzikálních charakteristik
2011
Dumbrovský, M., Vysoké učení technické v Brně (Czech Republic). Fakulta stavební, Ústav vodního hospodářství krajiny | Kameníčková, I., Vysoké učení technické v Brně (Czech Republic). Fakulta stavební, Ústav vodního hospodářství krajiny | Podhrázská, J., Výzkumný ústav meliorací a ochrany půdy, Brno (Czech Republic) | Muchová, Z., Slovenská poľnohospodárska univ., Nitra (Slovak Republic). Fakulta záhradníctva a krajinného inžinierstva, Katedra krajinného plánovania a pozemkových úprav,
The paper evaluates different technologies of soil cultivation (conventional and minimization) in terms of physical properties and water regime of soils, where infiltration of surface water is a major component of subsurface water. Soil physical properties (the current humidity, reduced bulk density, porosity, water retention capacity of soil, pore distribution and soil aeration) are determined from soil samples taken from organic horizon according to standard methodology. To observe the infiltration characteristics of surface layers of topsoil, the drench method (double ring infiltrometers) was used. For the evaluation of field measurements of infiltration, the empirical and physically derived equations by Kosťjakov and Philip and the three-parameter equation of Philip type were used there. The Philip three-parameter equation provides a physical based parameters near the theoretical values, a good estimation of saturated hydraulic conductivity Ks and sorptivity C1. Parameter Sof Philips equation describes the real value of the sorptivity of the soil. Experimental research work on the experimental plots H. Meziříčko proceeded in the years 2005 - 2008.
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