Publicaties
Gekozen filters:
Gekozen filters:
Copper Toxicity to bioluminescent Nitrosomonas europaea in soil is explained by the free metal ion activity in pore water KU Leuven
The terrestrial biotic ligand model (BLM) for metal toxicity in soil postulates that metal toxicity depends on the free metal ion activity in solution and on ions competing for metal sorption to the biotic ligand. Unequivocal evidence for the BLM assumptions is most difficult to obtain for native soil microorganisms because the abiotic and biotic compartments cannot be experimentally separated. Here, we report copper (Cu) toxicity to a ...
Influence of hydrological regime on pore water metal concentrations in a contaminated sediment-derived soil Instituut voor Landbouw-, Visserij- en Voedingsonderzoek
Options for wetland creation or restoration might be limited because of the presence of contaminants in the soil. The influence of hydrological management on the pore water concentrations of Cd, Cr, Cu, Fe, Mn, Ni and Zn in the upper soil layer of a contaminated overbank sedimentation zone was investigated in a greenhouse experiment. Flooding conditions led to increased Fe, Mn, Ni and Cr concentrations and decreased Cd, Cu and Zn concentrations ...
Experimental study of pore water pressure development in soil when foam infiltrates into saturated sand Universiteit Gent
Factors Controlling the Dissolved Organic Matter Concentration in Pore Waters of Agricultural Soils KU Leuven
Dissolved organic matter (DOM) affects a wide range of soil processes, but it is generally unknown which factors control its concentration. Here we report a survey of soil solution dissolved organic carbon (DOC) concentrations in agricultural soils with contrasting properties. Eighty-seven agricultural topsoils were sampled throughout Europe. Soil solution was isolated by centrifugation (3500 g) from soils sampled field moist and analyzed ...
Factors controlling the dissolved organic matter concentration in pore waters of agricultural soils Instituut voor Landbouw-, Visserij- en Voedingsonderzoek
Dissolved organic matter (DOM) affects a wide range of soil processes, but it is generally unknown which factors control its concentration. Here we report a survey of soil solution dissolved organic carbon (DOC) concentrations in agricultural soils with contrasting properties. Eighty-seven agricultural topsoils were sampled throughout Europe. Soil solution was isolated by centrifugation (3500 g) from soils sampled field moist and analyzed ...
Anisotropy of pore size classes' connectivity related to soil structure under no tillage Universiteit Gent
Depth profile of colloidal iron in the pore water of an Albic Podzol Universiteit Gent KU Leuven
Iron (Fe) colloids dominate the soil solution Fe and these colloids potentially act as vectors for nutrients and contaminants in soil. The question remains which factors, that is, gradients in soil chemical characteristics with depth or physical processes, cause vertical mobilisation and immobilisation of Fe colloids in soils. This question was addressed by characterising the change in concentration, size and composition of Fe colloids in a ...
Analytical solutions for excess pore water pressures generated by TBM tunnelling in a semi-confined aquifer Universiteit Gent
Tunnel-boring machine (TBM) tunnelling through an aquifer will generate excess pore water pressures in the soil around the tunnel face. Accurately predicting the magnitude of the excess pore water pressures is significant because it directly determines the effective face support pressure. In this study, an analytical solution for transient cylindrical flow caused by TBM tunnelling considering the elastic storage of the aquifer is developed. ...
Spatial variability of soil water content and soil electrical conductivity across scales derived from Electromagnetic Induction and Time Domain Reflectometry KU Leuven
© 2017 Elsevier B.V. Quick, reliable and accurate estimates of soil water content (SWC) at intermediate (slope) to larger scale (catchment) are important for understanding hydrological processes and may be provided by electromagnetic induction (EMI). EMI measures the apparent electrical conductivity of the subsurface (ECapp) which represents a depth weighted average value of the bulk soil electrical conductivity (ECb). The relation between ECb ...