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and processed in the DSS can be of use also for other types of studies which are or will be
needed for wetland ecosystem conservation or restoration, if these do not require the need
to re-run models, since this is often not user friendly or requires the authors (developers)
assistance. The examples given below show a range of results possibly to be obtained from
different sources.
9.1 Soligenic mires models results
Results of the reference model runs as well as runs that include the input data of hydrological
stress caused by human and natural impacts, are stored as raster and vector files, which make
them ready to use from the level of database in GIS. Depending on actual needs and situation,
new model runs can be done and analyzed as some elaborated and calibrated computation
algorithms are also stored in the database. Continuity and ecological function stability of
wetlands in the Middle Biebrza Basin are strongly dependent on minerotrophic groundwater
discharge from the sandy aquifer to superficial layers of peat. Common balance between
lateral groundwater inflow and accumulation of precipitation water on top of the peatland is
responsible for the development of transitional mires. Modelling of groundwater discharge in
various hydrological scenarios, that include increased groundwater inflow to the valley from
adjacent plateaus (Fig. 8), can become an important verification of management strategies held
by the BNP authorities. The relevance of such a modelling study increases, if a complex set of
different restoration strategies needs to be evaluated. Then, some hydrological indicators that
become the main force for wetland development, can be visualized and analyzed in coherence
with other aspects, that particular strategy should have fulfilled.
Fig. 8. Results of the steady-state groundwater discharge modelling - comparison of
hydrological conditions in Middle Biebrza Basin in 2007 and in a scenario, that assumes 10%
increase of groundwater inflow to the Biebrza Valley from adjacent plateaus.
9.2 Fluviogenic wetlands models results
This procedure allows for flood simulations with the hydrodynamic model and GIS analysis
for determinations of inundation extent and was used for elaboration of different kind of
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