Section |
Ecology |
Title |
THE ESTIMATION OF SYNANTHROPIZATION OF THE PLANT COVER OF THE FOREST-STEPPE OF THE SOUTHERN URALS (ORENBURG OBLAST) |
Сontributors |
M. A. Safonov, Head of the Department of common biology, ecology and methods of teaching of biology, Orenburg State Pedagogical University; T. V. Chibileva, Associate Professor of the Department of common biology, ecology and methods of teaching of biology, Orenburg State Pedagogical University, A. S. Malenkova, Associate Professor of the Department of common biology, ecology and methods of teaching of biology Orenburg State Pedagogical University, Orenburg, Russia |
Abstract |
The results of the studies of the flora and vegetation of the forest-steppe zone in the Southern Urals, carried out to investigate the processes of synanthropization of vegetation under temperate agricultural load are dis cussed. The characteristics of forest and grassy vegetation of the study area are given; 4 groups of formations, 14 formations and 21 associations of the steppe vegetation with the proportion of synanthropic species in these communities were described. The minimal representation of synanthropic species is in the communities of the forb-grass steppes; the highest one is in the grass-forb steppes. Common trends of synanthropization of vegetation in the steppe and forest-steppe zones differ only slightly, but the proportion of synanthropic species in the communities of the grass and mixed grass steppes in the forest-steppe zone is much lower. |
Keywords |
synanthropization, flora, vegetation, the forest-steppe zone, the steppe zone, the Southern Urals. |
References |
1. Bioresource potential of the Central Orenburg Region / monograph, M. A. Safonov Edit. — Orenburg: OOO IPK “Univer- sitet”, 2014. 248 p. [in Russian] 2. Milkov F. N. Landscape area and areas of the Chkalov Region // Sketches of the physical geography of the Chkalov Region. Chkalov: Chkalovsky publ. house, 1951. P. 27—52. [in Russian] 3. Encyclopedia “Orenburzhye”: vol. 1. Nature. Kaluga: Golden alley, 2000. [in Russian] 4. Tolmachev A. I. Methods of comparative floristics and problems of florogenesis. Novosibirsk: Nauka, 1986. 195 p. [in Russian] 5. Schmidt V. N. Quantitative indicators in comparative floristics. // Bot. J. 1974. Vol. 59, No. 7. P. 929—940. [in Russian] 6. Lavrenko E. M. Steppe and agricultural land in place of the steppes vegetation cover (explanatory note to the geobotanical map of the USSR). Moscow—Leningrad, 1956. P. 595—730. [in Russian] 7. Safonov M. A., Rusakov A. V., Bulgakov E. A., Tursunbaeva L. S., Kosykh T. M. Analysis of changes in indicators of eco-systems in the conditions of the ecotone // Questions of steppe science. — Orenburg: Institute of the steppe UB RAS, 2010. Vol. VIII. P. 119—126. [in Russian] 8. Rusanov A. M. Natural recovery of agricultural landscapes of the steppe and forest-steppe zones of the Orenburg Region // Steppe Bulletin. No. 36. 2012. P. 8—12. [in Russian] 9. Rusanov A. M. The Restoration of natural vegetation and ecological functions arid steppes of the Cis-Urals // Ecology. No. 4. 2014. P. 243—249. [in Russian] |