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October 2017, № 11 (211), pages 98–101

doi: 10.25198/1814-6457-211-98

Levykin S.V., Nurushev M.Zh., Kazachkov G.V., Yakovlev I.G., Grudinin D.A. SPECIFICS, PROBLEMS AND PROSPECTS OF STEPPE LANDSCAPE AND BIOLOGICAL DIVERSITY SELF-RESTORATION ON THE TERRITORY UNDERGONE THE VIRGIN LAND CAMPAIGN IN ZAVOLZHYE-URALS ECOREGIONThe main results of research into the territory undergone the virgin land campaign in Zavolzhye-Urals ecoregion on the theme of title steppe species reaction on plough use sharp termination in large scale of square are given. It is ascertained that pennata and lessingiana feather grasses under conditions of 10 years long plough pause and seed base existence form a dense clump, that functions as a phytobase of secondary steppe ecosystem directing fallow land succession to secondary steppe and promoting restoration steppe species, especially title ones. Amid such ones we accentuate marmot and little bustard showing properties of aggressive intruder, which pioneer fallow lands simultaneously with feather grasses. Great bustard and saiga didn’t show such properties. Other species return on fallow lands in dependence on local conditions and factors. Within the region under research, about 300 thou ha secondary steppes are found, mainly in Kazakhstan. Earlier ascertained factors promoting plough pause and factors promoting fallow lands mass reploughing up even in chestnut soil subzone, first of all suitability for modern technologies, are refined. It is observed that the main arrays of the most technologically suitable fallow lands in the Northern and the Western Kazakhstan are virtually completely reploughed up, and one of the last refuge of fallow lands, including expanding ones, is saved in Preduralia where terrain is rugged. For such refuges we propose the principal scheme of fallow land selection aimed at forming and saving secondary steppes, and virtually no cost nature simulating technology of self-restoration. The series of proposals aimed at secondary steppes saving and rational use, including the “Orenburgskaya Tarpania” project further development, is given. Key words: the territory undergone the virgin land campaign, title steppe species, secondary steppe, neosteppe, Zavolzhye-Urals ecoregion, phytobase, ecosystem base, land suitability for modern technologies.

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About this article

Authors: Levykin S.V., Nurushev M.Zh., Kazachkov G.V., Yakovlev I.G., Grudinin D.A.

Year: 2017

doi: 10.25198/1814-6457-211-98

Editor-in-chief

Sergey Aleksandrovich
MIROSHNIKOV

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