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Biomass of the xerothermic oak ecosystem on a site of community importance, BG0001040 "Zapadna stara planina i predbalkan", Bulgaria

Lyubenova M., Dimitrova V., Georgieva N., Dimitrov D.

Drewno : prace naukowe, doniesienia, komunikaty

2014

vol. 57, nr 192

89--106

The belowground and aboveground biomass was estimated for the tree story, sprouts and seedling regeneration in a representative Quercus frainetto – Quercus cerris ecosystem on “Zapadna Stara planina i Predbalkan”, a Site of Community Importance (SCI). The biomass was measured by destructive sampling (on sample or “model trees” representing three calculated density classes for each species and cut at the stump) of leaves, annual and perennial branches, wood, bark and root components. The belowground (root) biomass was also calculated from a subsample. The data obtained were compared to the results of previous studies and the values on the Bazilevich and Rodin [1971] scale. The ecological status of the forest ecosystem studied and its functional efficiency are discussed based on the study results and specific climate data.