English Abstract DEMNAT-2 is designed to predict the impact of national
water management scenarios on groundwater-dependent ecosystems. A
Geographical Information System (GIS) is used for spatial modelling with
DEMNAT-2, along with a specially developed proces module. A GIS user
interface is made to handle large amounts of different types of geographical
data sets. Geographical data to DEMNAT-2 are hydrological changes, soil
maps and ecosystem data. The hydrological changes are calculated by two
hydrological models. Two different soil maps are combined with GIS. Input
ecological data to DEMNAT-2 are 15 ecosystem types from a national floristic
database. Output data are changes in values for nature conservation of
these ecosystem types. GIS is used to map these effects and to overlay them
with different areas with special interest for nature
preservation.
