Project description B2 - Project completed
Scientific advisors
Prof. Dr. C. Leuschner, Dr. D. Hertel
Project
Carbon turnover and competition processes in the rhizosphere of deciduous forests with contrasting tree species diversity PDF
We investigate fine root mass in broad-leaved deciduous forest stands differing in tree species diversity. Fine root bio- and necromass data was collected along a biodiversity gradient (pure European beech stands to mixtures with mainly five tree species). Vertical and lateral fine root distribution patterns were evaluated. Additionally, morphological fine root characteristics were analysed.
Hypotheses:
- Total fine root biomass increase with increasing tree species diversity due to spatial niche separation in mixed stands.
- Vertical fine root distribution differs between tree species.
- Seasonal fluctuation of fine root mass is higher in pure stands than in mixtures.
- Fine root production increase with increasing tree species diversity due to higher fine root mass in mixed stands.
Untersuchungsmethoden
- Ingrowth cores
- Sequential soil coring
- Morphological fine root characteristics (WinRhizo)
- Soil temperature monitoring (iButtons)