UDC

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Authors

Zemtsovskaya Olga Nikolaevna
Department of Forest Management and Soil Science Forestry Engineering Institute, Northern (Arctic) Federal University named after M.V. Lomonosov (Arkhangelsk, Russia)
е-mail: nakvasina@yandex.ru
Nakvasina Elena Nikolaevna
Department of Forest Management and Soil Science Forestry Engineering Institute, Northern (Arctic) Federal University named after M.V. Lomonosov (Arkhangelsk, Russia)
е-mail: e.nakvasina@narfu.ru

Abstract

This paper considers the features of self-overgrowing rock dumps at the Lomonosov mining and processing division. The paper presents the vegetation characteristics of 4 test areas in the Lomonosov mining and processing complex, 3 of which are laid on a rock dump and 1 – on a peat dump. The geographical groups of plant species and groups in relation to the soil moisture factor is defined. The paper presents the data on the total number of plant species found on the test areas. The diversity of vegetation at the overburden and peat is estimated to be low, and presented by 36 species of vascular plants, including 20 species at disposals. As a rule, they represent the native flora. Trees are represented by 3 species, shrubs – by 2, bushes - by 3, sub-shrubs – by 1, herbaceous plants – by 27 species. 2 invasive species are found which are usual for the White Sea coast. We identified the main species involved in the self-healing of the soil and vegetation cover. The dominant role belongs to Tussilago farfara L., having a 100% incidence on the sample plots. Other species are found less, and their incidence ranges from 10 to 90%, while their share in the projective cover is of 0,5-1,75%. We have shown the dependence of the process of self-overgrowing age blade and the soil. Due to the poor propagation of turf grasses species there is no formed grass at the landfills, the total plant cover is 48-79,5%. Such situation leads to the soil deflation and the development of erosion processes. It is necessary to take measures for revegetation of the vegetational cover by means of phytoremediation with reseeding and planting trees and shrubs. Use of peat for remediation from the storages will strengthen the processes of dump encrustation.

Keywords

rock dumps, storage of peat, self-overgrowing

References

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