Soil and Water Research, 2018 (vol. 13), issue 1
LIST OF REVIEWERS - 2017
editors
Soil & Water Res., 2018, 13(1):X1 | DOI: 10.17221/10748-SWR
Investigation of soil water infiltration at a scale of individual earthworm channelsOriginal Paper
Igor PELÍŠEK
Soil & Water Res., 2018, 13(1):1-10 | DOI: 10.17221/283/2014-SWR
This study focused on the hydraulic efficiency of vertical earthworm channels (henceforth referred to as macropores or channels). The parameters selected for investigation were the rate of change in hydraulic soil conductivity in the channel walls due to compaction, the rate of this compaction, and the wall stability against running and stagnant water. We preferentially tested the variants for infiltration of water flowing from the soil horizons against gravity (e.g. from the level of installation of tile and controlled drainage). The details of influx and infiltration processes were examined both in the field and more thoroughly in the laboratory...
Using self-organizing maps for determination of soil fertility (case study: Shiraz plain)Original Paper
Marzieh MOKARRAM, Mahdi NAJAFI-GHIRI, Abdol Rassoul ZAREI
Soil & Water Res., 2018, 13(1):11-17 | DOI: 10.17221/139/2016-SWR
Soil fertility refers to the ability of a soil to supply plant nutrients. Naturally, micro and macro elements are made available to plants by breakdown of the mineral and organic materials in the soil. Artificial neural network (ANN) provides deeper understanding of human cognitive capabilities. Among various methods of ANN and learning an algorithm, self-organizing maps (SOM) are one of the most popular neural network models. The aim of this study was to classify the factors influencing soil fertility in Shiraz plain, southern Iran. The relationships among soil features were studied using the SOM in which, according to qualitative data, the clustering...
Modelling solute transport in homogeneous and heterogeneous porous media using spatial fractional advection-dispersion equationOriginal Paper
Ghazal MORADI, Behrouz MEHDINEJADIANI
Soil & Water Res., 2018, 13(1):18-28 | DOI: 10.17221/245/2016-SWR
This paper compared the abilities of advection-dispersion equation (ADE) and spatial fractional advection-dispersion equation (sFADE) to describe the migration of a non-reactive contaminant in homogeneous and heterogeneous soils. To this end, laboratory tests were conducted in a sandbox sizing 2.5 × 0.1 × 0.6 m (length × width × height). After performing a parametric sensitivity analysis, parameters of sFADE and ADE were individually estimated using the inverse problem method at each distance. The dependency of estimated parameters on distance was examined. The estimated parameters at 30 cm were used to predict breakthrough curves (BTCs) at subsequent...
Differences in humic acids structure of various soil types studied by DRIFT spectroscopyOriginal Paper
Lenka PAVLŮ, Marcela MÜHLHANSELOVÁ
Soil & Water Res., 2018, 13(1):29-35 | DOI: 10.17221/76/2017-SWR
The method of diffuse reflectance infrared spectroscopy (DRIFT) proved to be useful for studying the soil organic matter structure. The aim of this study was to compare DRIFT spectra of humic acids (HAs) separated from various soils and to identify their specific nature. Samples of agricultural soils (Dystric Cambisol, Haplic Chernozem, Greyic Phaeozem, and Haplic Luvisol) were collected from humic (A) horizons. Soil samples of reclaimed dumpsites (Haplic Technosol (molic) and (calcic)) were taken from the upper part of the soil profile. Samples of forest soils were collected from surface organic (H) horizons of Cambisols in spruce (Picea abies...
Effects of soil erosion by water under different tillage treatments on distribution of soil chemical parametersOriginal Paper
Ivica KISIC, Igor BOGUNOVIC, Zeljka ZGORELEC, Darija BILANDZIJA
Soil & Water Res., 2018, 13(1):36-43 | DOI: 10.17221/25/2017-SWR
Soil losses by water erosion were studied under six different tillage treatments, which differ in depth and direction of tillage and planting during a twenty-year period (1995-2014) on Stagnosols in central lowland Croatia. Studied tillage treatments were: control plot (bare fallow-BF), ploughing up and down the slope to 30 cm (PUDS), no-tillage (NT), ploughing across the slope to 30 cm (PAS), very deep ploughing across the slope to 50 cm (VDPAS), and subsoiling to 50 cm + ploughing to 30 cm across the slope (SSPAS). The paper presents the following chemical parameters: soil pH, soil organic matter (OM), plant available phosphorus (P-P2O5),...
Humus substances and soil aggregates in the soils with different textureOriginal Paper
Erika TOBIAŠOVÁ, Gabriela BARANČÍKOVÁ, Erika GÖMÖRYOVÁ, Božena DĘBSKA, Magdalena BANACH-SZOTT
Soil & Water Res., 2018, 13(1):44-50 | DOI: 10.17221/31/2017-SWR
Humus substances (HS) influence the incorporation of carbon into soil aggregates in many ways. In this study the influence of HS and their fractions in the soil on the proportions of carbon (total organic, labile, non-labile) in water-resistant macro-aggregates (WSA) and differences between the amount of carbon in WSA in coarse-grained (CGS) and fine-grained (FGS) soils with dependence on the proportions of HS in the soil were determined. The experiment included three soils (Haplic Chernozem, Haplic Luvisol, Eutric Cambisol), each of them with two different soil textures (CGS, FGS) from four ecosystems (forest, meadow, urban, and agro-ecosystem). In...
Effects of manure enriched with algae Chlorella vulgaris on soil chemical propertiesOriginal Paper
Nikolaos GOUGOULIAS, Georgios PAPAPOLYMEROU, Vayos KARAYANNIS, Xenofon SPILIOTIS, Nikolaos CHOULIARAS
Soil & Water Res., 2018, 13(1):51-59 | DOI: 10.17221/260/2016-SWR
The effect of the algal species Chlorella vulgaris at six different ratios (0, 1, 2, 3, 4, 5 g) of air dried algae biomass, mixed with 10.18 g of sheep manure, added to 50 g of soil, and incubated for a period of 15 weeks was studied in a laboratory in order to detect the role of adding small amounts of admixed algal biomass to soil in biodegradation of soil organic carbon. The obtained data showed that mineralization of soil organic carbon increased by 16.2-35.9% at all rates of algae addition compared to the control, while the highest increase was observed at the highest rates of algae addition. There was a 40-50% increase in the available...