Project description B2
Scientific advisors
Prof. Dr. C. Leuschner, Dr. D. Hertel
Project
Carbon and nitrogen turnover and competition processes in the rhizosphere of deciduous forests with contrasting tree species diversity
Sub-project B2 analyses effects of various tree species composition on fine root biomass and root growth in mature forests. The investigations will be conducted in 100 tree clusters consisting of three tree individuals representing various combinations of five tree species abundant in the Hainich forest.
Moreover, studies on tree species-specific fine root activity (growth, C sequestration, N uptake) will be done. Additionally, the susceptibility to herbivory of the fine roots of different species will be analysed in a mesocosm experiment.
Methods
- Differentiation of fine roots of various tree species
- ingrowth core technique
- Rhizoscopy (e.g. root windows, WinRhizotron software)
- Analysis of stabile isotopes (13C-AMS dating, 15N tracer and labelling)
- Mesocosms