EFFECT OF RECREATIONAL LOAD ON THE DEVELOPMENT OF SOIL CYANOPROKARYOTES AND ALGAE IN THE NATIONAL PARK "BASHKIRIA"
Route and stationary studies of soil cyanoprokaryotes and algae in some areas of the National Park «Bashkiria» were carried out. The studies covered a variety of habitats: waterside areas, floodplain meadows, lime-goutweed forest, trails, roads, fireplaces. Main regularities of soil cyanoprokaryote-algal cenoses (CAC) development in the recreation area of the park were revealed. Identified were 231 species and intraspecific taxa of cyanoprokaryotes and algae from 6 phyla, 12 classes, 32 orders, 62 families, 106 genera. The highest species diversity of CAC was found in the waterside areas (102 species), meadows (82) and forest (83), the smallest in the fireplaces (25). The average number of infrageneric taxa in the samples ranged from 9 (fireplace) to 14.6 (waterside areas). Ecological analysis showed the predominance of Ch-, hydr- and P-life forms in all the studied habitats. Univariate analysis showed a significant negative effect of the recreation on the species diversity and the average species number of cyanoprokaryots and soil algae in the samples. A relatively high CAC biodiversity in the studied park area indicates its resistance to recreational load. An intensive development of homocystous cyanoprokaryots was observed in some disturbed areas, namely members of the genera Phormidium, Jaaginema, Oscillatoria well developing on the compacted soil cover.