The biological productivity of aconitum Septentrionale koelle rhizome in the plant communities of mountain-forest zone in Bashkortostan Republic

The analysis of biological productivity of Aconitum septentrionale Koelle rhizomes using express method of assessment the productivity of plant harvested part according to their abundance and occurrence in plant communities of the mountain-forest zone in Bashkortostan Republic was performed. In this zone A. septentrionale found in the communities related to 51 associations and rank free communities of 16 of 13 orders of 7 vegetation classes according to the system of eco-floristic classification. The high biological productivity these species have in 14 associations and one rank free community of bald, meadow, forest and synanthropic vegetation. The most biological productivity of A. septentrionale rhizomes (of 211,0-290,5 kg/ha dry weight) occurred at clearings of pine and birch forests under the age of three years with relatively little disturbed ground cover and a good regime of moisturizing). It's was found that cuttings are the most perspective inhabitant for harvesting of A. septentrionale rhizomes. Communities with high abundance of A. septentrionale show high range of variability in productivity of rhizomes of this species because its contagious distribution of its thickets. When analyzing of productivity of rhizomes of this species in plant communities covering of large areas the interval assessment indicates the variability of productivity of rhizomes of A. septentrionale within communities of the same syntaxon.