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Standard extensive green roofs (EGRs) with their shallow substrate layers represent extreme sites for plant growth and therefore are planted mostly with drought-resistant species, including non-native plant species. As standard EGR substrates often lack potentially mutualistic soil microorganisms, it has been stated that inoculation with arbuscular mycorrhizal fungi (AMF) might increase plant performance and drought resistance. Aiming to support native biodiversity on EGRs, we tested whether AMF inoculation into standard green roof substrate can enhance plant performance and drought resistance of regionally occurring native dry grassland species.
The results of a pot experiment with 11 native plant species growing with and without AMF inoculation showed considerable differences in fitness-relevant plant traits. Over 88 days of moderate drought conditions, inoculated plants produced 2.5 times more above-ground biomass than control plants. In addition, the number of inflorescences on inoculated plants was significantly higher in 5 out of 7 flowering species. Under severe drought stress created by stopping the water supply, however, inoculated plants wilted on average 2.38 days earlier than control plants.
Although the underlying mechanisms of the observed results remain unresolved, AMF inoculation might help to enhance an earlier and higher seed set, facilitating the establishment of a soil seed bank, which is necessary for a self-sustaining plant population in drought-governed habitats such as EGRs.
Integration of nutritional and sustainable aspects is a complex task tackled by a few scientific concepts. They include multiple dimensions and functions of food systems trying to provide solutions for harmonic co-evolution of humanity and planet Earth. “Nutritional Sustainability” is differentiated from other concepts which combine nutrition and sustainability as it not only sets environmental sustaining capacity as a baseline level for balanced nutrition, but also aims for the search of food system driving nodes. It does not aim for the support of solutions of producing enough or more food for increasing population (sustainable nutrition), neither does it contradict other similar concepts [sustainable nutrition security, nutritional life cycle assessment (LCA)]. However, it calls for more definite estimation of the carrying capacity of the environment on personal, local, and national levels for the development of more efficient solutions of nutrition balanced in the limits of environmental carrying capacity. The review is providing a few examples of advances in nutritional science (personalized nutrition, nutrigenetics), food technology (personalized food processing, food ecodesign), and food complex systems (artificial intelligence and gut microbiome), which have a great potential to progress sustainable food systems with Nutritional Sustainability set as a guiding concept.
Smart Glasses haben das Potenzial, die Einarbeitungsphase von Mitarbeitern durch eine kontextsensitive Informationsversorgung und Kommunikation direkt im Blickfeld des Nutzers zu erweitern und zu verbessern. Im Rahmen eines gestaltungsorientierten Ansatzes wird das Einsatzszenario mit Hilfe von Experteninterviews analysiert und durch fachbezogene Literatur strukturiert. Als Resultat liefert dieser Beitrag spezifische Anforderungen an Smart-Glasses-basierte Assistenzsysteme in der Einarbeitungsphase von Mitarbeitern am Beispiel der Logistik-Branche aus Sicht der Praxis. Zusätzlich werden eine entsprechende Konzeption mit anschließender Evaluation eines korrespondierenden Systems sowie die dafür spezifizierten Kollaborationsfunktionen vorgestellt. Die Meta-Anforderungen, die Evaluation des vorgeschlagenen Konzeptes und die identifizierten Kollaborationsfunktionen erweitern die Wissensbasis der Wirtschaftsinformatik hinsichtlich des wenig erforschten Gestaltungswissens für Smart-Glasses-basierte Applikationen. Der Einsatz von Smart Glasses in der Einarbeitung stellt einen nutzenstiftenden Anwendungsfall für diese aktuell noch wenig verbreitete Technologie, sowie eine neue Interaktionsebene und zugehörige Kollaborationsfunktionen in der Einarbeitungsphase von Mitarbeitern dar und ist somit von hoher Relevanz sowohl für die Praxis als auch Wissenschaft.