ENVIRONMENTAL GROUPS OF PLANT SPECIES ON THE FOULING SLOPES OF ROADS IN THE MOUNTAINOUS DAGHESTAN

The paper presents the results of years of research of the process of overgrowth of the excavation and bulk slopes of roads in the pre-mountain, inner-mountain and high-mountain Dagestan on the basis of geo-botanical descriptions. On the roadside slopes in Dagestan found are 135 species of higher plants, which form the ecological groups, adapted to chemical and mechanical conditions of the slope grounds and exposures. Presented are the dominant species which define the characteristic specificity of fouling in altitude levels, depending on dissemination potential of the vegetation as well as the mechanical and chemical composi- tions of the material.