Biomorphological Peculiarities of Steppe plants of Gorokhiv Upland (Gorokhiv district, Volyn Region)

Abstract

According to the results of field investigations 2016–2017 in the neighborhood of the village Brany (the Horokhiv district of the Volyn region) within the Gorokhiv Upland, we identified 57 steppe species of vascular plants. According to the classification of K. Rankikier biological types, hemicryptophytes predominate (35 species, 61,3 %), according to the I. G. Serebryakov ecological and morphological classification – the herbal polycarpos (40 species, 70,1 %). A significant percentage of terophytes with tero-hemicryptophytes (total of 13 species, 22,8 %) is explained to anthropogenic influence and xerophytic conditions. When the biomorphes by the type of vegetation were characterized, it was found that all species are the summer-green plants. In the biomorphological spectrums of the investigated steppe tsenoelement, the flora of the type of above-ground shoots the semi-spatial plants predominates (35 species, 61,4 %), and the type of underground shoots are the caudex plants (22 species, 38,4 %). The existence of rare species of plants (Adonis vernalis L. and Pulsatilla pratensis (L.) Mill.) leads to the need for further research to identify areas of steppes for the protection.