Interested in watching this video? You have two options:
This video is part of the SER Conference Library. If you want to learn more about this resource please see this guide.
You can purchase a pass for this video on our website.
Already purchased access to this video, or want to redeem credit for a new order? Just enter your order number or email below:
Sign in below to get unrestricted access:
Markus Bauer , Martin Krause, Valentin Heizinger, Johannes Kollmann
Conceptual and experimental progress in community ecology benefits ecological applications. A topical issue is restoration seed mixtures that are designed to achieve specific ecosystem functions and services. Re-cultivation layers of landfills, for example, experience extreme climatic and soil conditions, while a reliable vegetation is needed for protecting the site. Suitable seed mixtures must take these abiotic conditions into account. A recent suggestion is that recycled brick rubble can be re-used as novel substrate for re-cultivation layers of landfills. The aim of our experiments was to test, whether seed mixtures which are designed for brick-based substrates and contrasting soil moisture grow as well as standard mixtures. Three greenhouse experiments were conducted, with substrates consisting of different brick ratios (5% vs. 30%), brick types (clean production waste vs. demolition material), and brick pre-treatments (acid vs. control) tested on three trait-based mixtures and one non-regional standard mixture. The trait-based mixtures were developed based on specific leaf area, seed mass and grass-to-legume ratio. There was no negative effect of demolition bricks and soil textures or moisture on biomass production. Acid-treated clean, porous bricks improved biomass production of the standard mixture and the intermediate mixture, while the effect was minimal with demolition bricks. Designed seed mixtures had biomass like the standard mixture under dry conditions but did not benefit from high moisture. In conclusion, bricks are a useful additive for restoration substrates, and regional grassland mixtures can replace standard mixtures on these substrates.
Conference Presentation, SER2021
Pre-approved for CECs under SER's CERP program