Function: Groundwater production
About 5.4 million m3 of groundwater is generated in Finland every day. Areas of eskers and terminal moraines with sorted coarse-grained soils have the largest high-quality groundwater deposits.
Soils consisting mainly of small particles such as clay and fine sand are poor in groundwater. Fine particles impede the water absorption and filtration. These areas are situated most often along the coastline. The water filtration is also minor in peatland areas. Peat absorbs water to a great extent but the groundwater formation is generally minimal. The groundwater in these areas is rich in humic acids and thus the quality is rather low.
Pohjavesialueet. Finnish Environment Institute. [In Finnish]
Ronkainen, N. 2012. Suomen maalajien ominaisuuksia. Suomen ympäristö 2 / 2012. 62 s. [In Finnish]
- Updated (20.01.2015)