The ecotopic characteristic of bottom lands of the osier-beds of the Ural river within the limits of the steppe south of the Chelyabinsk region

The light mode and the soil conditions of the habitats of the populations of the diagnostic kinds of associations of bottom lands of the osier-beds of the Ural River are characterized with the help of Ziganov's ecological scales. Despite of the affinity to the different forms of a relief the ecomorphs of the willows coincide in relation to the researched modes. It allows it's to relate to the same substractny-ecological group. The quantitative estimation of the using the abiotic factors testifies to ruderal and small competitiveness. The complex of the structural adaptations of biomorphs of the willows is the adaptation to the existence in extreme conditions of flood flows.