Soil and Water Research, 2012 (vol. 7), issue 3
Surface runoff simulation to mitigate the impact of soil erosion, case study of Třebsín (Czech Republic)Original Paper
Pavel KOVÁŘ, Darina VAŠŠOVÁ, Miloslav JANEČEK
Soil & Water Res., 2012, 7(3):85-96 | DOI: 10.17221/50/2011-SWR
The relation between soil erosion and its redistribution on land strictly depends on the process of surface runoff formation during intensive rainfall. Therefore, interrupting and reducing continuous surface runoff, using adequate conservation measures, may be implemented in order to reduce the shear stress of flowing water. This paper describes the outcomes of the KINFIL model simulation in assessing the runoff from extreme rainfall on hill slopes. The model is a physically based and parameter distributed 3D model that was applied at the Třebsín experimental station in the Czech Republic. This model was used for the first time to simulate the impact...
Soil organic carbon dynamics and its influence on the soil erodibility factorOriginal Paper
Václav KADLEC, Ondřej HOLUBÍK, Eva PROCHÁZKOVÁ, Jana URBANOVÁ, Martin TIPPL
Soil & Water Res., 2012, 7(3):97-108 | DOI: 10.17221/3/2012-SWR
The effect of erosion and erosion control measures on changes in the amount of organic matter in soil was studied. We investigated the influence of organic matter inputs into the soil on surface runoff, soil erosion and soil erodibility (K-factor), including the monitoring of carbon dynamics, as a result of torrential rains. The research was conducted on experimental plots in Třebsín site. Erosion leads to soil carbon loss and subsequently to increasing concentrations of carbon in sediments (enrichment ratio). We can conclude from the results that the input of organic matter into the soil (especially farmyard manure) significantly contributes to a...
Effects of highly volatile organochlorine solvents on nitrogen metabolism and microbial countsOriginal Paper
Hiromasa KIYOTA, Shinji OTSUKA, Akihito YOKOYAMA, Satoshi MATSUMOTO, Hidenori WADA, Shinjiro KANAZAWA
Soil & Water Res., 2012, 7(3):109-116 | DOI: 10.17221/30/2011-SWR
The effects of highly volatile organochlorine solvents (1,1,1-trichloroethane, TCET; trichloroethylene, TCE; and tetrachloroethylene, PCE) on soil nitrogen cycle and microbial counts were investigated using volcanic ash soil with different fertilizations. All the solvents significantly inhibited the activity of the cycle under the sealed conditions with 10 to 50 mg/g (dry soil) solvents added. No significant difference between the solvents, and between fertilization plots, was observed. Nitrate ion was not accumulated, and instead, ammonium ion was highly accumulated in the presence of the solvents. Nitrite ion was partially detected, while l-glutaminase...
Heavy metals in salt marsh sediments of Porteresia bed along the Karnafully river coast, ChittagongOriginal Paper
Mohammad Abdul Momin SIDDIQUE, Mahbuba AKTAR
Soil & Water Res., 2012, 7(3):117-123 | DOI: 10.17221/7/2012-SWR
Heavy metal (Cu, Zn, Cd, Pb and Fe) concentrations in salt marsh sediments of the Karnafully River coast were investigated in this study. Sediment samples of four different sites were analysed for selected heavy metals by AAS (atomic absorption spectrophotometry). The mean values of heavy metals were 45.79 µg/g for Cu, 105.0 µg/g for Zn, 0.43 µg/g for Cd, 26.70 µg/g for Pb and 3297.38 µg/g for Fe in this study. It is observed that Pb and Cu have positive correlations (r = 0.370, P < 0.05) and Fe and Zn have negative correlations (r = -0.729, P < 0.05) in the correlation matrix. Except...