Soil and Water Research, 2011 (vol. 6), issue 4
Index of Volume 6Index
editors
Soil & Water Res., 2011, 6(4):I-II | DOI: 10.17221/3848-SWR 
Mitigation of surface runoff and erosion impacts on catchment by stone hedgerowsOriginal Paper
Pavel KOVÁŘ, Darina VAŠŠOVÁ, Michaela HRABALÍKOVÁ
Soil & Water Res., 2011, 6(4):153-164 | DOI: 10.17221/31/2011-SWR
This paper presents the results of a study on the influence of hedgerows on the process of the surface runoff in the experimental catchment Verneřice 1, Ústí n. L. region, the Czech Republic. The influence of hedgerows on the surface runoff was simulated using the KINFIL rainfall-runoff model. The model parameters were assessed from the field measurements of the soil hydraulic parameters, in particular the saturated hydraulic conductivity and sorptivity. The catchment area is characterised by stone hedgerows constructed by land users throughout the past centuries, using stones collected from the adjacent agricultural fields. Presently, the hydraulic...
Building soil spectral library of the Czech soils for quantitative digital soil mappingOriginal Paper
Lukáš BRODSKÝ, Aleš KLEMENT, Vít PENÍŽEK, Radka KODEŠOVÁ, Luboš BORŮVKA
Soil & Water Res., 2011, 6(4):165-172 | DOI: 10.17221/24/2011-SWR
Spectral libraries are the data archives of spectral signatures measured on natural and/or man-made materials. Here, the objective is to build a soil spectral library of the Czech soils (SSL-CZ). Further on, the overall aim is to apply diffuse reflectance spectroscopy as a tool for digital soil mapping. An inevitable part of the library is a metadata database that stores the corresponding auxiliary information on the soils: type of material (soil, parent material), sample preparation, location of the sample with geographic coordinates, soil classification, morphological features, soil laboratory measurements - chemical, physical, and potential biological...
Geostatistical analysis of soil texture fractions on the field scaleOriginal Paper
Masoomeh DELBARI, Peyman AFRASIAB, Willibald LOISKANDL
Soil & Water Res., 2011, 6(4):173-189 | DOI: 10.17221/9/2010-SWR
Geostatistical estimation methods including ordinary kriging (OK), lognormal ordinary kriging (LOK), cokriging (COK), and indicator kriging (IK) are compared for the purposes of prediction and, in particular, uncertainty assessment of the soil texture fractions, i.e. sand, silt, and clay proportions, in an erosion experimental field in Lower Austria. The soil samples were taken on 136 sites, about 30-m apart. The validation technique was cross-validation, and the comparison criteria were the mean bias error (MBE) and root mean squared error (RMSE). Statistical analysis revealed that the sand content is positively skewed, thus persuading us to use LOK...
Persistent organochlorine pesticides and polychlorinated biphenyls in intensive agricultural soils from North IndiaOriginal Paper
Bhupander KUMAR, Sanjay KUMAR, Richa GAUR, Gargi GOEL, Meenu MISHRA, Satish Kumar SINGH, Dev PRAKASH, Chandra Sekhar SHARMA
Soil & Water Res., 2011, 6(4):190-197 | DOI: 10.17221/21/2011-SWR
Organochlorine pesticides (OCPs) and polychlorinated biphenyls (PCBs) were determined in agricultural soils from the northern states of India. The average concentration of OCPs was 37.67 ± 0.33 ng/g (dry weight - DW) while HCHs alone accounted for 93% followed by DDT (4.27%) and endosulphan (2.51%). The α/γ ratio of HCH (< 0.01-8.64) reflects the use of technical as well as lindane formulations. The ratio of p,p'-DDT/p,p'-DDE (0.16) and o,p'-DDT/p,p'-DDT (< 0.01) indicates the contamination of soils with the past use of technical DDT. The mean concentrations...
Reverse flow injection analysis of trace amounts of anionic surfactants in seawater without liquid-liquid extractionOriginal Paper
Lingyun YU, Mengru WU, Wei DONG, Jing JIN, Xinshen ZHANG
Soil & Water Res., 2011, 6(4):198-204 | DOI: 10.17221/13/2011-SWR
In order to control the pollution by anionic surfactants in seawater, a simple, accurate and sensitive reverse flow injection (rFIA) spectrophotometric method for the determination of anionic surfactants in seawater is suggested in this paper. Sodium dodecylbenzenesulfonate (LAS) was selected as the reference anionic surfactant. The method is based on the ion associate formed between LAS and Ethyl Violet. The absorbance of the complex is measured by optical detector at 585 nm. Chemical factors and rFIA variables affecting the system are also discussed. Under the optimal conditions, the linear range of this method was 25.0-400.0 μg/l; the detection...
Comparative effects of different soil amendments on amelioration of saline-sodic soilsOriginal Paper
Ahmed Mohamed MAHDY
Soil & Water Res., 2011, 6(4):205-216 | DOI: 10.17221/11/2011-SWR
A greenhouse experiment was conducted to test the potential of different soil amendments in saline-sodic soils reclamation; to affect the growth response of alfalfa (Medicago sativa L.) plants grown on two saline-sodic soils; and to evaluate the comparative efficiency of different soil amendments for their effects on salinity, sodicity, and pH levels of the soils. To achieve these objectives, two highly saline-sodic soils were selected (Abees, Typic torrifluvents and Elhammam, Typic calciorthids). Different soil amendments were used (compost, anthracite coal powder, water treatment residuals, ferrous sulphate, and a combination...