THE STRUCTURE OF MICROMYCETES COMPLEXES IN THE ECOTOPES OF SULFUR QUARRIES IN THE WESTERN REGION OF UKRAINE

Abstract

Species composition and structure of micromycetes in the soil samples of the Yavoriv and Podorozhnie sulfur quarries with different degree of sulfur contamination were studied. The monitoring points were selected based on the considerable variation of the level of sulfur pollution. Soil samples with comparatively insignificant excess of SO4 2– background concentration in soil solution were compared with those exceeding the concentration by 1.5–1.9 times (ecotope ZH1), by 4.0–4.6 times (ecotope E3), 48-50 times (ecotope T5), 40–44 times (ecotope T6), by 7.5–8.0 times (ecotope E7). It was established that the ecotopes with SO4 2– content in soil solution differing 1.5–1.9 times were characterized with the high comparison coefficient (V). It indicates exact similarity of microbiota of the studied ecotopes, which is typical for the studied area of the Podorozhnie sufur quarry. The Yavoriv sulfur quarry is characterized with low values of comparison coefficient (V) which was mostly demonstrated in the soils with excessive background concentration of SO4 2– in soil solution by 40–50 times. Species composition of micromycetes was defined, which were distinguished during 2011–2021 and classified as 76 species of 31 genera. Based on the calculation of even correlations between species of micromycetes in soils of the studied sulfur quarries and SO4 2– content in soil solution structural species were defined, which are interconnected with close correlation relations and form micromycetes complexes at the Podorozhnie and Yavoriv sulfur quarries, which indicates the spread of r- and L- strategists on the devastated areas.