Soil and Water Research, 2009 (vol. 4), issue 4
Index of Volume 4 List of RewiewersIndex
editors
Soil & Water Res., 2009, 4(4):X1 | DOI: 10.17221/2508-SWR 
Time variations of rainfall erosivity factor in the Czech RepublicOriginal Paper
Eliška KUBÁTOVÁ, Miloslav JANEČEK, Dominika KOBZOVÁ
Soil & Water Res., 2009, 4(4):131-141 | DOI: 10.17221/3/2009-SWR
The ombrographic data have been selected from 24 meteorological stations of the Czech Hydro Meteorological Institute (CHMI), according to the terms of the Universal Soil Loss Equation for calculating the long term loss of soil through water erosion, erosion hazard rains and their occurrence, with their relative amounts and erosiveness, R-factors determined for each month. By comparing the value of the time division of the R-factor in the area of the Czech Republic and in the selected areas of the USA, it has been demonstrated that this division may be applied in the conditions of the Czech Republic.
Evaluation of crop effects on runoff and washout of soil from the surface of agricultural landOriginal Paper
Jana Podhrázská, Jana Uhlířová, Stanislav Hejduk
Soil & Water Res., 2009, 4(4):142-148 | DOI: 10.17221/12/2009-SWR
Measurements of the runoff intensity (i.e. its volume and amounts of washed out soil particles) were performed on experimental plots with the slope gradient of 5° within the period of 2004-2008. Experimental plots were covered with different types of crops: crops with wide rows (maize, potatoes), no row crops (cereals) and permanent grasslands (both extensively and intensively managed). The main objective of this study was to quantify the effect of individual crops on the reduction of runoff and erosion transport (i.e. washout) of soil from the surface of agricultural land. Data measured on individual experimental plots were compared with control,...
Meteorological situations in 2007 and their implications for the cycling of selected chemical elements in a Central Bohemian forested catchmentOriginal Paper
Petra Kubínová, Petr Drahota, Jaroslav Fišák, Petr Skřivan, Jan Rohovec
Soil & Water Res., 2009, 4(4):149-158 | DOI: 10.17221/38/2008-SWR
Comparison of the annual bulk precipitation in the Lesní potok experimental catchment (Central Bohemia, Czech Republic) in the hydrological year 2007 (758.8 mm) with the average annual value between the years 1995 and 2006 (737.4 mm) indicates almost similar values, whereas the stream water discharge in 2007 amounts to only 38.2% of the average annual value of the comparable time span. It has been found that the low discharge in 2007 resulted from the extremely temperate winter and from the anomalous distribution of the precipitation events throughout the year. These factors, together with higher pH values of stream water in 2007, reduced the output...
The changes of soil mineral nitrogen observed on farms between autumn and spring and modelled with a simple leaching equationOriginal Paper
Jan Haberle, Helena Kusá, Pavel Svoboda, Jan Klír
Soil & Water Res., 2009, 4(4):159-167 | DOI: 10.17221/7/2009-SWR
The content of nitrate or mineral nitrogen (Nmin = N-NO-3 + N-NH +4) in soil in autumn is recognized as the indicator of potential risk of N leaching during winter. In this contribution, the apparent changes of Nmin in the 0-60 cm soil layer, during winter, on farm fields in the Czech Republic were calculated. A significant positive relationship between Nmin in autumn and the change during winter was observed in eight out of the nine farms. Nitrate N data produced similar relationships as Nmin. The regression analysis suggested that 40-90% of Nmin above...
Spectroscopic characteristics of humic acids originated in soils and ligniteOriginal Paper
Ľubica POSPÍŠILOVÁ, Naděžda FASUROVÁ
Soil & Water Res., 2009, 4(4):168-175 | DOI: 10.17221/14/2009-SWR
The aim of our work was to characterise the stability, humification degree, and principal classes of fluorophores in humic acids isolated from different matrices. Soil humic acids were isolated from arable soils and grassland that differ in the texture and moisture regimes (e.g. aquic; udic; and ustic moisture regimes). Basic soil characteristics, such as total organic carbon content, humus fractionation, cation exchange capacity, soil reaction, texture, and optical indexes were determined. The international standard method for humic acids (HA) isolation was used. Lignite represents a valuable organic substrate, with mineral inclusion situated on the...