Published date: Oct 29 2018

Journal Title: KnE Life Sciences

Issue title: The Fourth International Scientific Conference Ecology and Geography of Plants and Plant Communities

Pages: 56–63

DOI: 10.18502/kls.v4i7.3220

P D Gunin

S N Bazhamonexp@mail.ru

V I Ubugunova

E V Danzhalova

Ch Dugarjav

T G Baskhaeva

Yu I Drobyshev

L A Ivanov

L A Ivanova

S V Migalina

E A Bogdanov

The character of competitive relationships between woody and shrub vegetation in the southern (Mongolian) part of the Lake Baikal basin was studied via model polygons. Depending on the environmental conditions, native forests are being replaced by different types of shrubs. The main factors contributing to these changes
are the aridization of the climate and human activity. It is shown that the current state of shrub communities and their progressive dynamics along the southern border of boreal forests in Mongolia allow us to consider them stable cenoses, which prevent a natural renewal of coniferous (pine, larch) forests in this region. However, some shrub species may be considered indicators of ecotopes’ suitability for natural or artificial reforestation because their ecological requirements are similar to those of forest trees.

Keywords: Lake Baikal basin, ecotone area, destruction of forests, bush encroachment

[1] Cherednikova, Yu. S., Kuzmin, E. A., Zoeo, D., et al. (1991). Anthropogenic disturbance of forest ecosystems of Khentei in Mongolia. Geography and Natural Resources, no. 3, pp. 154–162.


[2] Tsedendash, G. and Dugarjav, Ch. (2004). Relict forest communities as indicators of climate change. Arid Ecosystems, vol. 10, no. 24–25, pp. 60–66.


[3] Dorjsuren, Ch. (2009). Anthropogenic Successions in the Larch Forests of Mongolia. Moscow: Rosselkhozacademia.


[4] Gunin, P. D., Vostokova, E. A., Dorofeyuk, N. I., et al. (eds.) (2002). Vegetation Dynamics of Mongolia. Dordrecht: Kluwer Academic Publishers.


[5] Koropachinsky, I. Yu. and Vstovskaya, T. I. (2002). Woody Plants of Asian Russia. Novosibirsk: Publishing house of SB RAS.


[6] Andreeva, E. N., Bakkal, I. Yu., Gorshkov, V. V., et al. (2002). Methods of Studying Forest Communities. St Petersburg: SPbSU.


[7] Ivanov, L. A., Ivanova, L. A., Migalina, S. V., et al. (2016). Photosynthesis adaptation of the desert-steppe shrub Caragana bungei to larch forest conditions on mountainous slopes in the Mongolian Khangai. Arid Ecosystems, vol. 6, no. 3, pp. 195–205.


[8] Bazha, S. N., Baldanov, B. Ts., Baskhaeva, T. G., et al. (2016). The diagnostic features of the regeneration potential of Larix sibirica Ledeb. in ecosystems on the southern border of the Boreal zone of Asia. Arid Ecosystems, vol. 22, no. 3, pp. 42–49.


[9] Drobyshev, Yu. I., Korotkov, S. A., and Stonozhenko, L. V. (1999). On the structure and variability of forest stands under stress. Forest Bulletin, vol. 2, no. 7, pp. 82–84.


[10] Drobyshev, Yu. I. (2001). The pine forests of Lower Orkhon. Reports of the Timiryazev Agricultural Academy, vol. 273, no. 2, pp. 140–143.


[11] Slemnew, N. N., Kamelin, R. V., Gunin, P. D., et al. (2005). Shrub communities and their role in succession processes in the forest-steppe zone of Mongolia. Botanical Journal, vol. 90, no. 4, pp. 481–508.