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The sustainability of bog plant communities of the Polistovsky nature reserve for the recreation impact

With the development of such kind of ecological tourism in Russia as a journey through protected bogs, the definition of recreational sustainability of these territories is becoming an urgent task. The purpose of our study is to assess the impact of recreational nature management on wetland phytocoenoses of the ecological path «Plavnitskoye Boloto» in the Polistovsky Reserve by solving the following problems:
1) to determine the threshold of permissible anthropogenic load in wetland areas with different types of plant communities;
2) to evaluate the restoration of phytocoenoses.

Modeling of direct anthropogenic impact on bog phytocenoses with different load values by the method of M.S. Boch made it possible to visually assess the damage to the phytocenosis and to reveal their stability and the subsequent ability to self-repair. According to the result-s of our research the reed-sphagnum phytocenosis with the association of Phragmites australis + Eriophorum vaginatumm– Sphagnum fallax + Sphagnum angustifolium was the least resistant to mechanical action, and the most resistant is the shrubby-sedge-sphagnum with the association of Oxycoccus palustris + Menyanthes trifoliata + Eriophorum vaginatumm– Sphagnum Fallax.

After the removal of anthropogenic load on the stu-died sites, the damaged vegetation cover was restored to different degrees: best of all, the phytocenosis of the shrub-sedge-sphagnum bog, where, under conditions of mesotrophic feeding and close groundwater stand, hygrophilous species of sphagnum mosses predominate. In some parts of the reed-sphagnum mesotrophic swamp, the original phytocenosis did not recover after four months; thus, this type of bog is the most vulnerable to recreational impact.

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