Abstract
Variations in the succession following cutting of a herbaceous Larix sibirica Ledeb. phytocoenosis along the southern boundary of boreal forests in southern Siberia and in Eastern Hentey, Mongolia, were studied. Morphometric methods were used to determine the dimensional hierarchies of coenopopulation individuals. Structure and productivity of the aboveground components including standing wood, herbaceous cover and litter were studied. The maximum aboveground phytomass was measured as 212.3 Mg ha−1 (oven dry mass). The highest total aboveground biomass productivity rate of a Larix sibirica phytocoenosis located at its southern limit exceeds 7 Mg ha−1 per year. The maximum annual phytomass increment was found to be 4.4 Mg ha−1 for the overstorey trees, 2.1 Mg ha−1, for the herbaceous layer and 0.7 Mg ha−1 for forest litter.
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