1) Interactions between trees in mixed forests (supervisor: Ch. Leuschner)
Competition in the canopy space and in the soil of mixed stands will be investigated with dendrochronological and dendrochemical methods and competition experiments.
Key words: Interspecific tree competition, dendrochronology, competition experiments
2) Tree species differences in respiration (supervisor: D. Gansert)
The respiration of roots and stems of different tree species in mixed forests will be quantified in its dependence on the environment using oxygen optodes and CO2-accumulation cuvettes.
Key words: tree respiration, tree species differences, carbon balance
3) Belowground productivity of mixed forests (supervisor: Ch. Leuschner)
Optical observation techniques and C- and N isotopic analyses will be used to quantify the growth and turnover of tree fine roots and the related C-flux to the soil.
Key words: Root turnover, belowground carbon fluxes, stable isotope analyses
4) Complementarity of tree water use in mixed stands (supervisor: Ch. Leuschner)
Water consumption and leaf water status of 5 tree species will be investigated in an experiment to identify species differences and water use complementarity effects in mixed stands.
Key words: transpiration, tree species, complementarity of resource use
Salary: 1100 € per month (tax free, Graduiertenstipendium)
Grants available from April 1, 2011 – March 30, 2014
