The study of geosystems of geodynamically active territories and their mapping is one of the urgent tasks of modern geographical research. The long period of formation and development of the Barguzin ridge determined the specifics of geosystems and their components. The conducted research allowed us to identify five physical and geographical areas, each of which has its own unique features. Within the large tectonic faults, which are characterized by an influx of endogenous heat and hot mineral springs are common, there is the largest accumulation of Miocene-Pliocene relics that have been preserved here since the Pleistocene cold snap. The development of the dark coniferous taiga is confined to the areas of distribution of acidic granites. Currently, pyrogenic impact is of great importance in the development of geosystems of the Barguzin ridge, which is reflected in the spread of derived forests that have arisen in the places of large fires. Frequent fires can cause the disappearance of dark coniferous taiga, as the process of restoring geosystems will be replaced by their transformation. The specifics of geosystems and their current state are reflected in the medium-scale map of geosystems of the central part of the western macroslope of the Barguzin ridge, which is presented in the article. The map was made for the first time at a scale of 1: 200000 to the level of facies groups.

Litvintseva Zoya Olegovna, Candidate of Sciences(Geography), Lecturer, Department of Geography, Cartography and Geosystem Technologies, Irkutsk State University, 1, K. Marx st., Irkutsk, 664003, e-mail: zoebuhun@mail.ru

Litvintseva Z.O. Geosystems of the Barguzin Ridge. The Bulletin of Irkutsk State University. Series Earth Sciences, 2021, vol. 36, pp. 63-74. https://doi.org/10.26516/2073-3402.2021.36.63 (in Russian)

Belova V.A. Istoriya razvitiya rastitelnosti kotlovin Bajkalskoj riftovoj zony (na primere Bajkalskoj i Verhnecharskoj kotlovin) [History of vegetation development in the basins of the Baikal rift zone (on the example of the Baikal and Verkhnecharsky basins)]. Moscow, Nauka Publ., 1975, 142 р. (in Russian)

Kuzmin M.I. et al. Glubokovodnoe burenie na Bajkale – osnovnye rezultaty [Deep-sea drilling on Lake Baikal-main results]. Geologiya i geofizika [Geology and Geophysics], 2001, vol. 42, no. 1-2, pp. 8-34. (in Russian).

Konovalova T.I. Metodologiya geosistemnogo kartografirovaniya yavlenij transformacii prirody [Methodology of geosystem mapping of nature transformation phenomena]. Geoinformacionnye i kartograficheskie metody i tekhnologii: InterCarto InterGIS [Geoinformation and cartographic methods and technologies: InterCarto InterGIS], 2017, no. 2(23), pp. 113-122. https://doi.org/10.24057/2414-9179-2017-2-23-113-122. (in Russian)

Kuzavkova Z.O. Prostranstvennaya organizaciya geosistem zapadnogo makrosklona Barguzinskogo hrebta [Spatial organization of geosystems of the western macroslope of the Barguzin ridge]. Cand. sci. diss. Irkutsk, 2019, 122 p. (in Russian)

Kuzavkova Z.O. Geoinformacionnoe kartografirovanie v regionah Rossii [Mapping the spatial organization of geosystems]. Materialy XI Vserossijskoj nauchno-prakticheskoj konferencii. Voronezhskij gosudarstvennyj universitet, Voronezh, Cifrovaya poligrafiya Publ., 2020, pp. 222-226. (in Russian)

Tyulina L.N. Vlazhnyj Pribajkalskij tip poyasnosti rastitelnosti [Wet Baikal type of vegetation zonation]. Novosibirsk, Nauka Publ., 1976, 319 p. (in Russian)

Lesne O., Calais E., Deverchère J., Chery J., Hassani R. Dynamics of intracontinental extension in the north Baikal rift from two‐dimensional numerical deformation modeling. Journal of geophysical research. Solid Earth, 2000, vol. 105, iss. B9, p. 21727-21744. https://doi.org/10.1029/2000JB900139.

Calais, E. Vergnolle M., Sankov V., Lukhnev A., Miroshnitchenko A., Amarjargal Sh., Déverchère J. GPS measure mends of crustal deformation in the Baikal Mongolia area (1994– 2002): implications for current kinematics of Asia. J. Geophys. Res., 2003, vol. 108.https://doi.org/10.1029/2002JB002373.

Konovalova T.I. The organization of geosystems in southern East Siberia (research and mapping). IOP Conf. Series: Earth and Environmental Science, 2018, vol. 190, 012032. https://doi.org/10.1088/1755-1315/190/1/012032.

Williams D.F., Peck J., Karabanov E.B., et al. Lake Baikal record of continental climate response to orbital insolation during the past 5 million years. Science, 1997, vol. 278, pp. 1114-1117.

Bezrukova E., Tarasov P., Solovieva N., Krivonogov S., Riedel F. Last glacialinterglacial vegetation and environmental dynamics in southern Siberia: chronology, forcing and feedbacks. Palaeogeogr., Palaeoclimatol., Palaeoecol., 2010, vol. 296, pp. 185-198..

Demske D., Heumann G., Granoszewski W., Nita M., Mamakowa K., Tarasov P., Oberhänsli H. Late glacial and Holocene vegetation and regional climate variability evidenced in highresolution pollen records from Lake Baikal. Global Planetary Change, 2005, vol. 46, pp. 255-279.

Petit C., Deverchere J. Structure and evolution of the Baikal rift: A synthesis. Geochem. Geophys. Geosyst. 2006, vol. 7, no. 11. https://doi.org/10.1029/2006GC001265.

Priestley K., McKenzie D. The thermal structure of the lithosphere from shear wave velocities. Earth planet. Sci. Lett., 2006, vol. 244, pp. 285-301. https://doi.org/10.1016/j.epsl.2006.01.008.

Ruzhich V.V. Levina E.A., Kocharyan G.G. Estimated geodynamic impact from zones of collision and subduction on the seismotectonic regime in the Baikal rift. Geodynamics and Tectonophysics, 2016, vol. 7, iss. 3, pp. 383-406.