Suitability of roadside soils for absorbing rain and storm waters

 

"We are currently studying the suitability of roadside soils for absorbing rain and storm waters at Soilia's lysimeter facility.

We are using nine lysimeters, which are filled with three different kinds of surface soil: peat soil, waste sludge soil and waste sludge soil with 15% biochar mixed in. In other words we are also studying the suitability of different soil compositions for the qualitative control of storm water.

Once the storm water has infiltrated through the soil profile, we take samples in order to analyse water quality. In addition to this, we're also studying water absorption, meaning the effectiveness of the soil for preventing flood risks, by monitoring how the water moves through the soil.

The study is currently in progress and the results should be ready in late 2016."

 

Marjo Valtanen
postdoctoral researcher
University of Helsinki | Department of Environmental