PINE FORESTS WITH UNDERGROWTH OF PINE (Pinus sylvestris L.) AND CEDAR (Pinus sibirica Du Tour) IN EOLIAN SANDS OF THE CENTRAL PART OF LAKE BAIKAL EASTERN COAST

The work performed allowed to reveal specific pine forests (Scotch pine) with undergrowth of pine (Pinus sylvestris L.) and cedar (Pinus sibirica Du Tour) forests. The underwood of these forests consists of Daurian rhododendron (Rhododendron dauricum L.), blueberry (Vaccinium uliginosum L.), marsh tea (Ledum palustre L.). The general structure of the soil cover of the research area consists of cowberry (Vaccinium vitis-adaea L.), crowberry (Empetrum nigrum L.), multifoliate Andromeda (Andromeda polifolia L.), cranberry (Oxycoccus microcarpus Turcz. ex Rupr.), fescue grass (Festuca lenesis Drobov), bush grass (Calamagrostis neglecta (Ehrh.)Gaertner.), garden burnet (Sanguisorba officinalis L.), field horsetail (Equisetum pratense Ehrh.) with inclusion of such mosses as Schreber plevrotium (Pleurozium shreberi (Brid.) Mitt.), pigeon-wheat moss (Polytrichum juniperinum Hedw.) and hexagonal (Polytrichum sexangulare Brid.), polypody dicranum (Dicranum polysetum Sw.), ptilium pectinate (Ptilium crista-castrensis (Hedw.) De Not), Muehlenbeck's dicranum (Dicranum muehlenbeckii B.S.G.) and such peat mosses as Sphagnum palustre and Sphagnum fuscum in different variants of the species in the plant communities.The second synfolium contains Siberian cedar (Pinus sibirica Du Tour), rarely – spruce (Picea obovata Ledeb.) and Siberian fur (Abies sibirica Ledeb.). The cenoses include as well Pinus pumila (Pallas) Redel and weeping birch (Betula pendula Roth), white birch (Betula pubescens Ehrh.) and Asian white birch (Betula platyphylla Sukaczev) synusially in different quantitative variations in the phytocenoses. Such cenoses are formed on eolian sands along the eastern coast of Lake Baikal, from the Selenga R. delta (Oblom Cape) to Gramyachinsk settlement including isolated sited of the pre-coastal area of Chivyrkuy Bay where they occupy a narrow near-coastal line at the slopes aprons.