Karnatovskaya M. Flora and Vegetation of arens of lower Dniper

The thesis is concerned with the structure of flora and vegetation оn the arens of lower Dniper. 454 species of 282 genera and 77 families of higher vascular plants have been registered in habitats studied. The systematic, arealogical, biomorphological and ecological structures of flora have been investigated. The specific diversity and coefficient of ?-diversity by each aren's is examined. The syntaxonomy of vegetation includes 9 classes (Lemnetea, Phragmitо-Magnocaricetea, Bolboschoenetea maritimi, Molinio-Arrhenatheretea, Festucetea vaginatae, Thero-Salicornietea, Asteretea tripolium, Festuco-Puccinellietea, Salicetea purpureaе), 11 orders, 13 alliances, 1 suballianc, 24 associations and 10 subassociations. Of these 15 syntaxa have been described for the first time. 31 rare taxa and 11 rare syntaxa have been revealed. Measures enabling their protection have been suggested 7452 Д 26.215.01