Soil and Water Research, 2006 (vol. 1), issue 2

Comparison of CGMS-WOFOST and HYDRUS-1D Simulation Results for One Cell of CGMS-GRID50Original Paper

Radka Kodešová, Lukáš Brodský

Soil & Water Res., 2006, 1(2):39-48 | DOI: 10.17221/6504-SWR  

CGMS (Crop Growth Monitoring System) developed by JRC is an integrated system to monitor crop behaviour and quantitative crop yield forecast that operates on a European scale. To simulate water balance in the root zone the simulation model CGMS-WOFOST (SUPIT & VAN DER GOOT 2003) is used that is based on water storage routing. This study was performed to assess a possible impact of simplifications of the water storage routing based model on simulated water regime in the soil profile. Results of CGMS-WOFOST are compared with results of a more precise Richards' equation based model HYDRUS-1D (ŠIMŮNEK et al. 2005). 16 scenarios are simulated using...

Possibilities of Using the Direct Runoff Model KINFIL for a Road Network DesignOriginal Paper

Pavel Kovář, Šárka Dvořáková, Eliška Kubátová

Soil & Water Res., 2006, 1(2):49-56 | DOI: 10.17221/6505-SWR  

The paper provides a practical implementation of the hydrological model KINFIL to be used for design­ing an optimal road density system in areas where agricultural or forestry production does not play an important role. In particular, such a road system project is based on the physiographic characteristics of land. Input data for a direct runoff analysis are computed in relation to the geometric parameters of upstream sub-catchments using the method of maximum daily precipitation reduction. Computed direct runoff discharges depend mainly on soil and vegetation conditions. Besides the soil type characteristics, the length and the angle of hill slopes...

Soil Organic Matter and its Stability in Aerobic and Anaerobic ConditionsOriginal Paper

Ladislav Kolář, Rostislav Ledvina, Stanislav Kužel, František Klimeš, Pavel Štindl

Soil & Water Res., 2006, 1(2):57-64 | DOI: 10.17221/6506-SWR  

In eight samples of organic and organomineral surface horizons we studied the stability of soil organic matter in aerobic and anaerobic conditions expressed by the rate constant of its biochemical oxidation, total biochemical oxygen demand, substrate production of methane and degradability in anaerobic conditions. In the eight very different samples no relationship was found between aerobic and anaerobic stability of their organic matter; nor was the expected relationship between total biochemical oxygen demand and "active carbon" Chws proved. Methods of determination are described.

Revised Determination of the Rainfall-runoff Erosivity Factor R for Application of USLE in the Czech RepublicOriginal Paper

Miloslav Janeček, Eliška Kubátová, Martin Tippl

Soil & Water Res., 2006, 1(2):65-71 | DOI: 10.17221/6507-SWR  

The evaluation of a series (1961-2000) of ombrographic records from 13 selected stations of Czech Hydrometeorological Institute provided long-term annual summation values and annual peaks of the rainfallrunoff erosivity factor R in the USLE. The evaluation indicated that by defining an erosive rainfall event as (a) rainfall ≥ 12.5 mm or (b) rainfall intensity > 6 mm per 15 minutes, there were on average 8 erosive rainfall events per station, varying from 1 to 25. The long-term summation values of R factor were in the range of 42 to 106 (average 66) and annual peaks ranged from 19 to 38 (average 29). If the criteria (a) and (b) were to be fulfilled...

Study of Anthropogenic Soils on a Reclaimed Dumpsite and their Variability by Geostatistical MethodsOriginal Paper

Marcela Rohošková, Vít Penížek, Luboš Borůvka

Soil & Water Res., 2006, 1(2):72-78 | DOI: 10.17221/6508-SWR  

Soils of reclaimed dumpsites after coal mining are considered as typical anthropogenic soils. These soils are at the beginning of their development and have certain specific characteristics. The aim of this study was to describe a soil survey performed on anthropogenic soils of a reclaimed dumpsite, to analyse spatial variability of selected properties using geostatistical methods, and to evaluate the development of reclaimed dumpsite soils. It has been shown that geostatistical methods are suitable for a description of anthropogenic soil properties and their variability. However, characterization of soil properties on the border between areas with...