Over het archief
Het OWA, het open archief van het Waterbouwkundig Laboratorium heeft tot doel alle vrij toegankelijke onderzoeksresultaten van dit instituut in digitale vorm aan te bieden. Op die manier wil het de zichtbaarheid, verspreiding en gebruik van deze onderzoeksresultaten, alsook de wetenschappelijke communicatie maximaal bevorderen.
Dit archief wordt uitgebouwd en beheerd volgens de principes van de Open Access Movement, en het daaruit ontstane Open Archives Initiative.
Basisinformatie over ‘Open Access to scholarly information'.
Zn in the soil solution of unpolluted and polluted soils as affected by soil characteristics
Meers, E.; Unamuno, V.R.; Du Laing, G.; Vangronsveld, J.; Vanbroekhoven, K.; Samson, R.; Diels, L.; Geebelen, W.; Ruttens, A.; Vandegehuchte, M.; Tack, F.M.G. (2006). Zn in the soil solution of unpolluted and polluted soils as affected by soil characteristics. Geoderma 136(1-2): 107-119. https://dx.doi.org/10.1016/j.geoderma.2006.03.031
In: Geoderma. ELSEVIER SCIENCE BV. ISSN 0016-7061; e-ISSN 1872-6259, meer
|  |
| Trefwoord |
|
| Author keywords |
Zinc; Soil solution; Mobility; Heavy metals |
| Auteurs | | Top |
- Meers, E., meer
- Unamuno, V.R.
- Du Laing, G., meer
- Vangronsveld, J.
|
- Vanbroekhoven, K.
- Samson, R., meer
- Diels, L., meer
- Geebelen, W.
|
- Ruttens, A.
- Vandegehuchte, M., meer
- Tack, F.M.G., meer
|
| Abstract |
Current legislative frameworks for soil pollution focus predominantly on total metal content. However, environmental risks posed by heavy metals are not only function of their overall presence in the soil, but also of their chemical speciation. Soil solution levels of Zn are indicative of its availability to plants and soil (micro)biota. In addition, levels present in the soil solution can tell us something of the potential risks for leaching and subsequently elevating ground water levels. In this research, a total of 29 polluted and unpolluted soils were characterised and assessed for the presence of Zn in the soil solution using Rhizon soil moisture samplers. Interactions between the soil properties and observed solubility of Zn was described and put into empirical multivariate formulations. All obtained equations without exception contained pH as a key factor in determining Zn solubility. Finally, soil solution speciation of Zn was assessed using 2 independent software packages (Visual Minteq 2.23 and WHAM VI), based on pH and the presence of other metals, exchangeable bases, anions, and dissolved organic matter. Both models were largely in disagreement in the fractionation between organically bound and inorganic Zn in the solution. Further investigation into the parametric background of both models will therefore be required to ascertain the cause and nature of the observed discrepancy. |
IMIS is ontwikkeld en wordt gehost door het VLIZ.
