Correlation between dendometric indicators and stands diversity indices in gardens & parks cultivated plant communities at Kryvyi Rih district

Abstract

Abstract. For a natural environment phyto-optimization a correlation dependencies between dendometric indicators and a stand diversity indices in gardens & parks cultivated plant communities at Kryvyi Rih district had been analyzed. In 22 research plots at 10 gardens & parks both field and desk studies were conducted by conventional methods. In each plot: floral composition has been documented; woody stems of diameter at breast height and woody height were measured; tree-density, basal area of the tree and volume of the tree were computed. The woodlands diversity indices (Shannon’s diversity, Pielou’s evenness, Simpson’s diversity and Margalef’s richness) were calculated by classical formulas The taxonomic composition of the stand contained 23 species from 13 genera, 12 families and one department - Polotonosynye. The dendrometric indicators of the stand confirmed that forest species plants are in a stress state as a permanent impact result by adverse environmental factors that are natural and anthropogenic genesis. The correlated calculations confirmed that between the dendrometric indices and the stands indices diversity is a statistically significant relationship. Among the dendrometric indicators, the tree-density and volume of the tree were the most sensitive to the stands indices diversity. Among the diversity indices, Pielou’s evenness index was the most informative indicator