Gustafsson, Jon-Petter
- Department of Soil and Environment, Swedish University of Agricultural Sciences
Abstract
Mofettes (natural geogenic CO2 exhalations) represent excellent sites to study the behavior of Cu in soils and the co-occurrence of different mobilization and immobilization processes since they exhibit both a gradient in redox conditions (oxic to permanently anoxic) and in soil organic matter (SOM; low to high contents). Soil and pore water samples from an 18 m-transect over a mofette showed a complex behavior of Cu, with highest mobility in the transition between oxic and anoxic conditions. Cu(II) sorption experiments on SOM-rich topsoil revealed that Cu mobility under oxic conditions was confined by adsorption to SOM while in the oxygen-free mofette center reduction and precipitation of sulfides was the dominating Cu-sequestering process. In transition areas with low amounts of oxygen (
Published in
Environmental Science and Technology
2018, volume: 52, number: 23, pages: 13698-13707
Publisher: AMER CHEMICAL SOC
SLU Authors
UKÄ Subject classification
Soil Science
Publication identifier
- DOI: https://doi.org/10.1021/acs.est.8b02668
Permanent link to this page (URI)
https://res.slu.se/id/publ/97583