Environmental risk management with the use of multicriteria GIS for decisionmaking support
Environmental riskbased land management requires implementation of tools for spatial information analysis, problemoriented models for assessment of risk values, and computer systems for decision making support. A new Decision Support System (DSS) DECERNS (Decision Evaluation in Complex Risk Network Systems) has been developed to address this class of problems. DECERNS is a webbased Spatial DSS (WebSDSS) for multicriteria analysis of a wide range of spatiallydistributed alternatives within the problems on risk management and landuse planning. This paper provides a brief overview of methods and tools used in DECERNS; application of DECERNS for a case study on multicriteria risk management for contaminated land resulting from Chernobyl is presented.