FLORISTIC CHARACTERISTICS, TYPES AND ECOLOGY OF LARCH FORESTS OF THE MIDDLE SIBERIA OF NORTHERN BOREAL SUBZONE

The widespread types of larch forest of the Middle Siberia of Northern Boreal Subzone near the Tura settlement were singled out. Leading ecological factors forming diversity of forest types were examined by means of DCA-ordination. Floristic composition and structure of forest communities were studied using IBIS-software. The completed study showed that poor floristic composition, leveling influence of fire impact and soil permafrost insignificantly influenced both alpha-diversity and betadiversity.