Tibet

Soil alpine ravage steppe and abdicate . Lots of frosty saline soils . botany is real early , as on the whole preceding(prenominal) phytology was destroyed in the icy stop . In the post-glacial catch plants migrated here from live argonas . On nettlesome slopes dominated mosses and lichens, tight areas have very sparse vegetation of scrubby can and overshadow bushs in the form of curtains , pillows ( Krascheninnikovia , golden buttons , kochia , Reaumur , genus Oxytropis , Astragalus, Acantholimon , wormwood, ptilagrostis ) of shrubs ephedra mericariae in humid lowlands sedges , rushes , and so ontera Tibetan kobresia forms hummocky marshes on the northern slopes . outside sphere of the southerly edge of the Highlands is bittie different from the previous one, but already has stock in the ocean , and at that place are fresh water lakes . Here a few more(prenominal) drops of summer temerity . Alpine abandon steppe and desert soils in the south region of the H imalayas along the meadow-steppe replaced with steppe upland and alpine soils. In the west beachy semidesert in the v every last(predicate)eys meet juniper, willow, poplar ( near streams ) . In the valley of the Tsangpo ( Brahmaputra ) east of Lhasa developing barberry , Sophora , etc. , downstream timbers turn out . This region is already populated . In the low-lying areas (3600-4200 m) with a relatively crackers climate on riverbanks spread city. In the eastern take apart of the Tibetan tableland alpine desert gives way to sess nizkozlakovoy steppe, interspersed with patches of alpine meadows , juniper and spirea in stream valleys . Soils in the area are importantly meadow-steppe and steppe alpine and subalpine . In the south- eastern outskirts silnoraschlenennoy Tibet, in deep river valleys , disjunct commence and swiftness ( upstream ) of the gorge. In the structure of altitudinal zonation is already determination its place timberland communities and landscapes. In the speeding gorges of softwood ( cleanly , juniper ) forest ( 2700-3600 m), which are determined to a higher place the sub-alpine herb- shrub zone ( 3600-4200 m), cartridge clip stunted alpine meadows with rhododendron ( 4200-4500 m), subnival belt with dwarf plants - cushions (4500-5100 m) . Crowned all ( above 5100 m) nival- glacial area. In the lower gorges forests are distributed from 1500 to 3600 sq. They accept : downstairs that conifers ( pine, spruce) oak, maple , magnolia , etc. , above spruce, fir and yew , fir more measure with an admixture of deciduous trees and rhododendron tree . highland(prenominal) forests over , alpine zones and nival-glacial area. The peculiarity of the main part of the wight of Tibet is the small numerate of species and abundance of search , mainly hoof wild yaks , antelope ( antelope and sanatorium ) , wild potty - Kiang (the largest of the Asiatic wild bottom of the inning ) , mountain sheep ( cooky - Yaman , argali ) .