Publication Date:
2018-12-18
Description:
The decomposition of the prevalent peat-forming plants of oligotrophic bogs in the southern taiga subzone of Western Siberia is quantified in a model experiment. The decay rate (DecR) of Sphagnum fuscum, Chamaedaphne calyculata, Eriophorum vaginatum , and mixed sample (60% of Sph. fuscum and 40% of C. caltculata )is estimated as a C(CO 2 ) emission from plant samples over 3 months at different temperatures (2, 12, 22° C) and at a moisture level corresponding to 60% of their water holding capacity. The dynamics of DecR of the prevalent peat-forming plants during the experiment is considerably influenced by both factors: the temperature and the type of plant litter. A remarkable increase in the C(CO 2 ) emission rate is observed for all plant samples at the initial stages of decomposition. An increase in the DecR for all types of plants is observed first at 22° C and 1-2 weeks later at 2°C. During the 3 months of the experiment, the Sph. fus...
Print ISSN:
1755-1307
Electronic ISSN:
1755-1315
Topics:
Geography
,
Geosciences
,
Physics
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