Floristic and vegetation-ecological analyses of the green roofs of the lake water plant
Evaluation of the current condition and as a basis for success control after renovation work
At a glance
- Project leader : Dr. Stephan Brenneisen
- Deputy of project leader : Prof. Dr. Jürgen Dengler
- Project team : Lorenz Achtnich, Manuel Babbi, Jamyra Gehler, Rafael Schneider, Stefan Widmer
- Project budget : CHF 22'000
- Project status : completed
- Funding partner : Public sector (excl. federal government) (Grün Stadt Zürich)
- Contact person : Stephan Brenneisen
Description
The water supply system of the city of Zurich is planning major
construction works at the Moos plant. The green roofs with nature
conservation value (> 100 years old, with botanical values of
cantonal importance (Landolt 2001)) are to be preserved wherever
possible. The Urban Ecology Research Group has developed a concept
for the removal, intermediate storage and reinstallation of green
roof areas.
Grün Stadt Zürich would like to have a comprehensive vegetation
analysis carried out prior to the start of construction work as a
basis for monitoring the success of the project after completion of
the work. On the one hand, the focus will be on the population
sizes of target species of nature conservation (all orchid species,
approx. 10 other vascular plant species), which have already been
exhibited by Elias Landolt as particularly important. At the same
time, a vegetation-ecological study by means of vegetation surveys
should open up the possibility of recognising changes in the entire
species combination, even of species that have not been defined a
priori as target species. On this basis, site changes can be
detected at an early stage which may also become significant for
the target species in the medium term.