Objective
In parts of Finland (and in Sweden) acid sulphate soils are dominant. Acidity discharges from this soil have a severe effect on pH levels in rivers, particularly in the coastal Ostrobothnia areas. Acidity discharges are multiplied as a result of the construction of subsurface drainage systems in the flat coastal areas.
The Regional Council of Central Ostrobothnia in collaboration with the Regional Environment Centre, and a company specialised in lime applications are cooperatively working on this project, which has the object of investigating the most effective means of preventing acidity surges in rivers due to acid sulphate soils.
The project will survey and quantify the soils in various locations in the catchment area. As a second stage a dynamic model will be applied in order to evaluate the need for acidity neutralisation in the river and the need for lime filter drains in the catchment area. The third stage will be the construction of lime filter drains in selected farm lands. Finally, the project will monitor the effects of the constructed drains on the acidity and heavy metal contents in the Lestijoki river.
Topic(s)
Data not availableCall for proposal
Data not availableFunding Scheme
CSC - Cost-sharing contractsCoordinator
67100 Kokkola
Finland