On the Study of the Phytocenotic Association of Linnaea borealis L. in the Conditions of the Northern Baikal Region

Linnaea borealis L. is an evergreen shrub of the forest zone with overwintering leaves on two and three shoots. It has a wide area of distribution in the north hemisphere. It is characterized as one of the accompanying species of dark coniferous forests, it is often found in the lower part of the high-mountain belt and in the arctic zone. In life form, the species is a land-spreading shrub with elongated pubescent rooted shoots, up to two meters long and lateral erect or ascending branches 1-15 cm high. In addition to the glandu l ar pubescence of the branches covered with short appressed gray hairs. In linnaea actively formed adventitious roots, allowing shoots to take root, securing them and increasing the area of nutrition. The studies were conducted in the protected areas of the Northern Baikal region, in the cond i tions of the Barguzin biosphere reserve. The territory of the reserve occupies the Central part of the Western macro-slope of the Barguzin ridge and belongs to the Baikal mountain-taiga province, and the Baikal lake basin as part of the Baikal-Dzhugdzhur mountain-taiga region [1]. The material was collected in the valley of the Bolshaya river, in the period 2014-2016. During the classification of forest v e getation, 43 geobotanical descriptions involving the Linnaea borealis L. were used. Herbarium-in the amount of 200 sheets, 106 species of higher vascular plants were registered. Descriptions were made by standard geobotanical techniques. The abundance of species was taken into account on the scale of Braun-Blanquet. Used the dominant-determinant approach to taxonomical units flori a nop, formation, Association. When studying the phytocenotic confinement of L. borealis, it was found that the species is found in communities of larch and pine forests. During operation was a llocated 4 group associations (Carex macroura+Viola uniflora+Orthilia secunda+Pleurozium schreber i , Bergenia crassifolia+Ledum palustre+Pleurozium schreberi, Poa pratensis+Spiraea media, Rosa acicularis+Vaccinium vitis-idaea+Rubus arcticus+Equisetum scirpoides+Melica nutans+Aconitum barbatum) relating to two formations, and one type of vegetation.

1. Buharova E. V. Izuchenie i sohranenie redkih vidov rastenij v Barguzinskom zapovednike / otv. red. A. A. Ananin. FGBU «Zapovednoe Podlemor'e». – Ulan-Udeh: Izd-vo BNC CO RAN, 2004. – 134 s.+8 s. cv. il.

2. Ferguson I. K. Linnaea L. // Flora Europaea: [angl.] / ed. by T. G. Tutin et al.. – Cambridge, London, New York, Melbourne: Cambridge university press, 1976. – Vol. 4. Plantaginaceae to Compositae (and Rubiaceae). – P. 45. – 534 p.

3. Namzalov B. B., Bogdanova K. M., Bykov I. P. i dr. Buryatiya: rastitel'nyj mir. Vypusk 2. – Ulan-Udeh: Izdatel'stvo Buryatskogo gosuniversiteta, 1997. – 250 s.

4. Korchagin A. A. Vidovoj sostav rastitel'nyh soobshchestv i metody ego izucheniya. V kn.: Polevaya geobotanika. – M. – L.: Nauka. – 1964. – T.3. – S. 39 – 62.

5. Ponyatovskaya V. M. Uchet obiliya i osobennosti razmeshcheniya vidov v estestvennyh rastitel'nyh soobshchestvah. V kn.: Polevaya geobotanika. M. – L.: Nauka, 1964. – T.3. – S.209-299.

6. YUnatov A. A. Tipy i soderzhanie geobotanicheskih issledovanij. Vybor probnyh ploshchadej i zalozhenie ehkologicheskih profilej. – V kn.: Polevaya geobotanika. M. – L.: Nauka. – 1964, T.3. – S. 9-36.

7. Opredelitel' rastenij Buryatii / pod red. O. A. Anenhonova. – Ulan-Udeh: Respublikanskaya tipografiya, 2001. – 672 s.: il.

8. Flora Sibiri / pod red. L. I. Malysheva i dr. – 1-14. Novosibirsk, 1987-2003.

9. Namzalov B. B. Prostranstvennaya organizaciya rastitel'nosti gornoj lesostepi Barguzinskoj kotloviny (Severnoe Pribajkal'e) / B. B. Namzalov, T. G. Baskhaeva // Turczaninowia. Barnaul: Izd-vo: Altajskij gosudarstvennyj universitet, 2018. – Tom 21. – №1. – S. 52-65.