| Brief description of vegetation (% of total area.): |
Vegetation cover the area outside the valley of the Urals and quite uniform in doagrikulturny period was submitted to the watershed communities, these herb-feather grass steppes dominated by Stipa zalesskii, S. pennata (mainly in the northern region), S. capillata, Festuca valesiaca s. l. rich and the composition of steppe grasses. In the hollows with more abundant moisture are areas of meadow-steppe and steppe grasslands (often dominated by Calamagrostis epigeios), as well as thickets of steppe shrubs (Caragana frutex, Spiraea crenata, S. hypericifolia, Cerasus fruticosa, Cotoneaster melanocarpus, Amygdalus nana), widespread, In addition, the slopes of varying steepness and exposure. On the yields of rocks on the tops of ridges and slopes are widespread petrofitnye steppe, which include those on the rocky outcrops of the coast of the Urals found a number of very rare for the area of species at the northern limit of distribution (Ferula caspica, Linaria uralensis, Silene altaica, Atraphaxis frutescens, Dianthus uralensis , Iris glaucescens, Astragalus depauperatus, etc.). Considerable length of the district from north to south is the cause of some differences in the vegetation: in the northern part of the community are more common meadow steppes with Stipa pennata, steppe community as a whole is richer in species composition and richer meadow-steppe species in the southern steppe associations are more xerophytic options, in particular, with the participation of S. korshinskyi and S. lessingiana. Herb-feather and meadow steppes now almost fully occupied and tilled crops and deposits, and minor-preserved sections of altered grazing, mowing and regular PALAMI under the influence of steppe communities are largely transformed into a poor composition of Stipa and fescue. Steppe communities of the region is best preserved petrofitnye steppes, sometimes occupying very large areas on the tops and slopes of ridges and hills. On the bottoms of the valleys of small rivers and ravines, and in depressions in the watersheds of the foothill plains and stripes in places at lower parts of the second terrace of the Urals there are different versions of halophytic communities (mainly alkaline meadows Alopecurus arundinaceus, Silaum silaus, Galatella biflora, Plantago maxima, P . salsa, Allium angulosum, Pedicularis dasystachys, Geranium collinum, Astragalus sulcatus, Oxytropis glabra, etc., above the hill turning into salty steppe), but in general for the area they are not very characteristic and occupy a very small area. The area is characterized by an almost complete treeless. Only places on the northern slopes of hills and ridges are very small and few birch and aspen-birch forests. The vegetation is represented by the modern floodplain of the Urals topolevnikami of Populus nigra, willow (Salix alba, S. triandra, S. vinogradovii, S. viminalis), thickets of shrubs (Lonicera tatarica, Rosa glabrifolia, Amygdalus nana), alternating with areas of floodplain meadows (which are characterized by Tulipa biebersteiniana, Fritillaria meleagroides, Ranunculus silvisteppaceus) and coastal vegetation oxbow lakes. |