ROLE OF THE BRYOPHYTE COVER IN ACCUMULATION OF ORGANIC CARBON AND BIOGENIC ELEMENTS IN TECHNOGENIC SUBSTRATE ON THE TERRITORY OF SULFUR DEPOSIT

N. Ya. Kyyak, O. L. Baik


DOI: http://dx.doi.org/10.30970/sbi.1003.495

Abstract


The influence of bryophyte cover on accumulation of organic carbon and biogenic elements in substrate of the dump No1 of Yazivsky sulphur deposit of State Mining-Chemical Enterprise “Sirka” was investigated. The bryophytes were among the first to settle on the dump substrates and form thick, multispecific overgrowth. It was showed, that quantity of the organic carbon in the substrate under moss turfs has increased 1.6–1.8 times compared to its content in substrate without the turfs. The lowest indices of the organic carbon content was detected on the dump top that might be caused by a tension of the ecological factors on this plot (high insolation level, moisture deficit). It was established that bryophytes promote enriching dump substrate with the biogenic elements, first of all, nitrogen and phosphorus. High variability of the organic substance content was determined by both specific moss peculiarities and the microconditions on the dump territory. Life form of species is of great importance, as the highest indices of the organic carbon, nitrogen and phosphorus content was established under moss co­ver, formed by dense turf species Bryum caespiticium. Thus, the bryophytes as pioneer plants play an important role in process of the renewal of technogenic substrates, promoting accumulation of the organic substance, and in this way creating the conditions for the development of other higher plants and soil biota.


Keywords


bryophytes, organic carbon, biogenic elements, dump of sulphur deposits

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