Environmental Engineering Reference
In-Depth Information
eutrophication was successively reduced. The installation of sewage treatment units
mitigated detrimental effects. Often, as in the case of Lake Glumsø, a simple
diversion of pollutants were chosen as it was less expensive and it was still believed
that: “dilution was the solution to pollution”. With time, lakes are now cleaner than
they were 30 years ago. Certainly, modelling has helped to gain an understanding of
the nature of the processes involved. These changes are also reflected in the works
on Lake Glumsø.
The studies completed on Lake Glumsø influenced and benefited later ecosystem
research, such as the German ecosystem research programme from 1988 to 1999. In
the Bornhoved Lakes Region with a special focus on Lake Belau (which is largely
comparable to Lake Glumsø) the approach was made to investigate aquatic and
terrestrial systems in parallel, to see how they influence each other, e.g. through
matter and energy flow. Here, models were employed as a primary synthesis tool
(Fr
anzle et al. 2008; Breckling et al. 2005).
Last but not least, the Glumsø studies helped to demonstrate the importance of:
€
1. Adequate background data, both for verification, calibration and validation of
prognosis
2. The use of modelling as an experimental tool
3. The multidisciplinary character of the modelling exercise
Moreover, the case has led to a new type of structural dynamic models that can
cope with the shifts in species composition of ecosystems.
