Structure and spatial-temporal variability of the forest bedding accumulationin the bog birch forests in Western Siberia

Heavily decomposed, middle decomposed,rhizomelike, turfy and turf litters form in the transitional zone between forest types withtall grass-dominated ground vegetation and those where this vegetation is represented by sphagnum,and sites without of ground vegetation. These types of forest litter are objectivity correspondingto certain forest growing conditions. Litter thickness and stock change accordingly:5,7 sm (4,5 kg/m2) > 4,7 (3,7) > 3,6 (2,1) < 4,5 (2,5) < 6,2 sm (3,0 kg/m2). Litter stock is notablefor high spatial variability. Temporal dynamics is characterized by low and as a rule reliablevariability. Forest litter type forming are defined both the composition of litter and influence oforganogenic silt deposition, introducing by flood. 393 million ton of organic matter and 204 millionton of carbon concentrate in the birch bog forest litter of Western Siberia.

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