Case studies

The methodology of the project will be developed by testing different methods and approaches in several case studies.

Ogosta river basin

Ogosta river is located in the north-western part of Bulgaria. The river basin comprises 3157,1 km2.  The upper part of the basin has been studied in several projects focused on the various aspects of environmental quality especially arsenic contamination. Publications of these studies are available here

Malki iskar river basin

Malki Iskar river is a right tributary of the longest river in Bulgaria – Iskar.  located in the north-western part of Bulgaria. The river basin comprises 1284 km2.  The basin has been studied in several flood risk assessment projects and flood regulation ecosystem services assessments. Publications of these studies are available here

Brestnitsa karst geosystem

The Brestnitsa karst geosystem is located in the Vit River valley, North-Central Bulgaria and covers an area of about 60 km2. It represents the classical karst type for the territory of  Bulgaria. The karst relief is made up of typical karst forms – a complete surface complex and over 50 karst caves of different types.

Krushuna karst geosystem

The Krushuna karst geosystem is formed in the eastern part of the Devetaki Plateau, North-Central Bulgaria. It represents the classical karst type and  an intensive anthropogenic load (agricultural and forestry activities, quarry developments, transport and socio-residential construction) and has been selected as a long-term model research site in the karst research program of the National Institute of Geophysics, Geodesy and Geography (NIGGG-BAS).