Warning message Node revision 1457 not found in node The Steppe Area of Russia: Economic and Geographical Survey. Perharps it was deleted. Baryshnikova Olga N. RussiaBarnaulAltai State University, Lenin Ave., 61, Barnaul, 656049, Altai Krai, Russiaonb-olga@yandex.ru Author's articles Natural Prerequisites of Changing the Vegetation Cover of Ribbon Forests on the Territory of Altai Krai