Bayern

In 2020, the City Council of the City of Munich has obliged the Building Department to design the green roofs of all new buildings as biodiversity roofs wherever possible in the future and to green at least 30 er facades.
Mr. Otto Efler will tell us about the experiences of the horticultural building department and how successfully this obligation has been implemented since 2020. Together with some other colleagues we will present current projects.

Markus Schäf will then report on the current status of planning for the A7 of the BDA. And about the BDLA Bavaria symposium on climate in the fall of 2022.

The meeting will take place online. Access data can be obtained from Markus Schäf, head of the AG (see below).

Introduction and moderation: Jan Sihler, Büro Verde from Freising.

The following speakers will report from their practical experience and will be available for questions and discussion:

• Prof. Dr. Dickhaut from HCU, (as initiator of the workshop series BlueGreenStreets, in spring 2020).
• Ralph Schäffner, as a freelance landscape architect and member of the research advisory board in Veitshöchheim (experiments with wick systems for tree pits)
• Hannes Prügl from the Soil Institute, as an expert on soils and substrates, known from the excursion to the Bayernkaserne.

Topics among others:

• Definition of tree pits
• Reasons / advantages for the use of tree trenches
• What are the systems / approaches for tree infiltration trenches?
• Which materials are used, with the respective advantages and disadvantages
• Which points are to be paid special attention to, respectively at which point is further research / monitoring necessary?
• What are the advantages of tree trenches in the case of permeable soils (as in Munich)?
• Problem of de-icing salts in tree trenches

The session will take place online. Access data can be obtained from Markus Schäf, head of the WG (see below).