THE USE OF BASIN CONCEPT FOR the FLORISTIC ZONING CONDUCTIon (by THE EXAMPLE OF TOM RIVER BASIN)
The article presents the results of using the basin approach (principle) for floristic researches on the example of Tom River Basin. These researches were based on the study of 22 model basins - the tributaries of Tom River. The aim was to test the validity of comparative floristic methods for the investigation of small and medium-sized river basins, as well as to clarify floral borders on the territory. To assess the influence of model basins morphological parameters on their floras features, the correlation analysis with basic flora characteristics was conducted. The study shows that in the case of investigation the value of area is not important (immaterial) for the model basin species amount. One of the results of the comparative analysis of the model basins flora was the scheme of floristic zoning, according to which 5 floristic zones and 8 districts were allocated on the territory of Tom River Basin.