CATERMASS - Climate Change Adaptation Tools for Environmental Risk Mitigation of Acid Sulphate Soils
Finland has Europe's largest areas of acid sulphate (AS) soils and land uplift has caused these sulphide-bearing sediments to emerge above the current sea-level. Through reclamation, they constitute today some of the most productive farm lands in Finland. Other sulphide bearing sediments have been reclaimed for forestry, construction works and infrastructure. But these practices also resulted in lowering of groundwater level during dry spells, and in mobilising large quantities of metals stored in the soil. These are flushed from the soils into drains and recipient estuaries during wet spells (especially cadmium). The project aims to develop climate change adaptation tools for the Finnish river basin districts to mitigate the impacts of increased leaching of acidity and metals from acid sulphate soils drained for agriculture and forestry. For this end, the project shall consolidate the knowledge base for adapting pollution control methods to climate change; develop effective mapping, identification and risk classification methods of AS-soils; construct prototype testing fields with infrastructure and equipment to demonstrate climate change adaptation tools under practical field conditions; and involve stakeholder in decision making processes concerning adaptation of land use to climate change.