Effect of plant diversity on ecosystem functions in grassland: the role of roots

• Antragsteller: Professor Dr. Christof Engels
• Fachliche Zuordnung: Ökologie und Biodiversität der Pflanzen und Ökosysteme
• Förderung: Förderung von 2002 bis 2012
• Projektkennung: Deutsche Forschungsgemeinschaft (DFG) - Projektnummer 5468999

Human activities have led to strong reduction in plant diversity. There is an intensive debate on the consequences of diversity loss on ecosystem functions such as productivity, and cycling of carbon and mineral nutrients, as well as on the plant traits responsible for these ecosystem functions. In this subproject it is tried to assess the effects of plant diversity in experimentally established grassland plots on (a) biomass and nutrient accumulation in roots, (b) acquisition of soil resources by living roots and (c) release of organic carbon and nutrients into the soil by decaying roots. The experimental design allows to differentiate between effects of plant species number per se, and effects of functional attributes associated with specific plant groups on root characteristics. It is expected that the results will improve our knowledge about the processes involved in diversity effects on ecosystem functions, and finally may help to develop recommendations of agricultural measures for sustainable grassland management.

• DFG-Verfahren: Forschungsgruppen
• Teilprojekt zu: FOR 456: The role of Biodiversity for element cycling and trophic interactions: An experimental approach in a grassland community
• Internationaler Bezug: Schweiz
• Beteiligte Person: Professor Dr. Bernhard Schmid