AbstractGIS in Ecological Impact Assessment of Wetlands Track: Ecology, Archaeology, and Conservation Author(s): Bernard Raterman, Martin de Haan, Arthur Meuleman This paper presents the use of GIS in ecological impact assessment by Kiwa Water Research and Dutch Water companies. Wetlands have become rare in the European community due to desiccation. These are often strongly influenced by groundwater abstraction and drainage of their surroundings. Predicting the effects of water management measures on wet terrestrial ecosystems is an essential element in environmental impact assessment. Knowledge about steering natural processes is used in the expert system NICHE (Nature Impact Assessment of Changes in Hydro-Ecological Systems). Based on several practical applications, the main concepts behind NICHE and how it is implemented in GIS are described. Bernard Raterman Kiwa Water Research Groningenhaven 7 PO Box 1072 Nieuwegein 3430 BB The Netherlands Phone: +31 30 6069541 Fax: +31 30 6061165 E-mail: bernard.raterman@kiwa.nl Martin de Haan Kiwa Water Research Nieuwegein Arthur Meuleman Kiwa Water Research Nieuwegein |