Temporal variations of biomass, carbon and nitrogen of roots under different tree species
The root biomass, carbon and nitrogen concentrations, carbon and nitrogen masses, C/N ratio of roots were evaluated with regards to species, root diameter classes and seasons.
The significantly (p<0.05) lowest annual mean root biomass was 258 g/m2 in Austrian pine compared with tree species. The fine root class has significantly the lowest carbon content, with the 42% value, among other root diameter classes. However, the temporal variations of root C (%) presented no statistical significance. The annual mean nitrogen concentrations ranged from 0.56% (Turkish fir) to 0.74% (Austrian pine) among species. We also found that root nitrogen concentrations in January were significantly different from those of other sampling times. C/N ratios showed statistically significant differences in root diameter classes that the ratios were found, 49 for fine roots, 111 for small roots and 143 for coarse roots, respectively.
Document Type: Research Article
Affiliations: 1: Faculty of Forestry, Soil Science and Ecology Department,Istanbul University, Istanbul, Turkey 2: Blaustein Institutes for Desert Research,Ben-Gurion University of the Negev, Midreshet Ben Gurion, Israel 3: Faculty of Forestry, Forest Yield and Biometry Department,Istanbul University, Istanbul, Turkey
Publication date: 2013-01-01