Soil and Water Research, 2007 (vol. 2), issue 4
Estimation of the soil water retention curve (SWRC) using pedotransfer functions (PTFs)Original Paper
Svatopluk Matula, Markéta Mojrová, Kamila Špongrová
Soil & Water Res., 2007, 2(4):113-122 | DOI: 10.17221/2106-SWR 
Soil hydraulic characteristics, especially the soil water retention curve and hydraulic conductivity, are essential for many agricultural, environmental, and engineering applications. Their measurement is time-consuming and thus costly. Hence, many researchers focused on methods enabling their indirect estimation. In this paper, Wösten's continuous pedotransfer functions were applied to the data from a selected locality in the Czech Republic, Tišice. The available data set related to this locality consists of 140 measured soil water retention curves, and the information about the soil texture, bulk density ρd, and organic matter...
Mapping soils using the fuzzy approach and regression-kriging case study from the Považský Inovec Mountains, SlovakiaOriginal Paper
Juraj Balkovič, Gabriela Čemanová, Jozef Kollár, Miroslav Kromka, Katarína Harnová
Soil & Water Res., 2007, 2(4):123-134 | DOI: 10.17221/2112-SWR
The paper introduces a method of digital mapping of spatial distribution of soil typological units. It implements fuzzy k-means to classify the soil profile data (study area from the Považský Inovec Mountains, Slovakia) and regression-kriging with the selected digital terrain and remote sensing data to draw membership maps of soil typological units. Totally three soil typological units were identified: Haplic Cambisols (Skeletic, Dystric), Albic Stagnic Luvisols, and Haplic Stagnosols (Albic, Dystric). We analysed the membership values to these units with respect to terrain and remote sensing data. The membership values appeared as spatially smoothly...
Thermodynamics of copper desorption from soils as affected by citrate and succinateOriginal Paper
Elsayed A. Elkhatib, A. M. Mahdy, N. H. Barakat
Soil & Water Res., 2007, 2(4):135-140 | DOI: 10.17221/2110-SWR
Desorption of Cu and low molecular weight dissolved organics are the primary factors that impact fate and transport of Cu in soils. To improve predictions of the toxicity and threat from Cu contaminated soil, it is critical that time-dependent desorption behaviour be understood. In this paper, the effect of organic ligands citrate and succinate on the kinetics of Cu desorption from contaminated soils varying widely in soil characteristics was investigated at three different temperatures. The results showed that the first order equation adequately described the kinetics of Cu desorption from clay and sandy soils under isothermal conditions. The reaction...
Phosphorus fractions in arable and mountain soils and their humic acidsOriginal Paper
Gabriela Barančíková, Tibor Liptaj, Nadežda Prónayová
Soil & Water Res., 2007, 2(4):141-148 | DOI: 10.17221/2111-SWR
Soil phosphorus (P) can exist in various inorganic (Pi) and organic forms (Po). Specific determination of Pi can be obtained by fractionate methods. However, the discrimination between the chemically different forms of Po in soil is not simple. Nowadays, the method of choice for the determination of various soil inorganic and organic P compounds is 31P NMR. In this paper, the determination of various phosphorus forms (available P, total P, Pi and Po fractions) in arable and mountain soils is presented. Besides, the detailed characterisation of P compounds in humic acids (HA) is also shown. The results obtained show that the highest content...
Stand heterogeneity of total carbon and nitrogen, and C/N ratio in soil of mountain meadowsOriginal Paper
Valerie Vranová, Pavel Formánek, Klement Rejšek, Dalibor Janouš
Soil & Water Res., 2007, 2(4):149-155 | DOI: 10.17221/2107-SWR
This study was aimed at monitoring the relative and absolute stand heterogeneity of total carbon, total nitrogen and C/N ratio in Ah-Ae-Btg-Bt horizons of Gleyic Luvisol on one mountain meadow divided into two study plots: one moderately (once a season) mown (plant community of the Nardo-Callunetea class) and one abandoned for about 12 years (plant community of the Molinio-Arrhenatheretea class). The heterogeneities were evaluated more than 2 months after the mowing of the moderately mown meadow at the end of July 2005. Relative stand heterogeneity was expressed using coefficient of variation (CV), absolute stand heterogeneity...
Predictability of flood events in view of current meteorology and hydrology in the conditions of the Czech RepublicOriginal Paper
Lucie Březková, Milan Šálek, Eva Soukalová, Miloš Starý
Soil & Water Res., 2007, 2(4):156-168 | DOI: 10.17221/2109-SWR
In central Europe, floods are natural disasters causing the greatest economic losses. One way to reduce partly the flood-related damage, especially the loss of lives, is a functional objective forecasting and warning system that incorporates both meteorological and hydrological models. Numerical weather prediction models operate with horizontal spatial resolution of several dozens of kilometres up to several kilometres, nevertheless, the common error in the localisation of the heavy rainfall characteristic maxima is mostly several times as large as the grid size. The distributive hydrological models for the middle sized basins (hundreds to thousands...
INDEX OF VOLUME 2
editors
Soil & Water Res., 2007, 2(4):169-171 | DOI: 10.17221/2108-SWR