Phytoindication assessment of syntaxa of meadow vegetation, class Molinio-Arrhenatheretea, in Polissya and Forest Steppe of Ukraine

Ya.P. Didukh; A.A. Kuzemko

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Ukr. Bot. J. 2014, 71(2): 140–147

https://doi.org/10.15407/ukrbotj71.02.140

Vegetation Science, Ecology, Conservation

Phytoindication assessment of syntaxa of meadow vegetation, class Molinio-Arrhenatheretea, in Polissya and Forest Steppe of Ukraine

Ya.P. Didukh¹, A.A. Kuzemko²

¹M.G. Kholodny Institute of Botany, National Academy of Sciences of Ukraine, Kyiv
²National Dendrological Park «Sofiyvka», National Academy of Sciences of Ukraine, Uman’

Abstract

Analysis of 2096 relevés using techniques of synphytoindication (Didukh, 2011) with application of advanced mathematical methods and software, allowed us to establish the important environmental aspects of differentiation of meadow vegetation at the level of alliances and orders. Differentiation was caused mostly by changes in hydrological parameters of the soil, occupying more than 30 % of the relevant scales. The nature of correlation between the twelwe leading edaphic, climatic and cenotic factors has been determined. Indicators of the climatic factors fluctuate within narrow limits; however, their isochore define the optimum zone of communities, located in the northern part of the Forest-Steppe zone, which extends from Ternopil to the Dnieper River. The original results have important scientific value for prediction of the vegetation change in relation to a variety of environmental factors.

Keywords: meadow vegetation, Molinio-Arrhenatheretea, synphytoindication, ordination, cluster analysis, Ukraine

Full text: PDF (Ukr) 907K

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