Safronova I.N. SEMI-DESERT IS THE PARADOX OF THE TWENTIETH CENTURY // Arid ecosystems. 2019. V. 25. № 1 (78). P. 3-9. | PDF
The steppe zone occupies a large area in the South of the European Russia. Part of the Caspian Lowland belongs to the desert zone. Some researchers along with the steppe and desert zones distinguish another zone, called semi-desert. The paradox is that there is no semi-desert type of vegetation and there are no typical elements for the semi-desert, but the semi-desert is considered as a separate zone.
Keywords: zone, subzone, vegetation type, semi-desert, deserted steppes.