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There is little information available about the molecular composition of organic fractions with a possible bearing in soil water repellency. Extremely water-repellent forest soils developed on granites or schists, under vegetation of pine or eucalyptus, were used for sequential isolation of two lipid fractions: free lipid extracted with petroleum ether and ‘bound’ lipid obtained with the same solvent...
This study investigates the effect of predominant historical atmospheric depositions of fly ashes from brown coal power plants on physical properties of forest soils along a deposition gradient (0 to 33.9 km). Studies on physical properties of a pure fly ash show a sand dominated texture, high particle density, (macro-)porosity and saturated hydraulic conductivity as well as a slight water repellency...
Soil water repellency is widespread in forest soils and has important hydrological implications. The relation of soil water repellency to hydraulic properties is of interest to assess the overall hydrological behaviour of a forest ecosystem. Both soil water repellency and hydraulic properties depend on tree species and age, forest management practices, and the season of the year. In this study, the...
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