Scots Pine (Pinus sylvestris L.) Undergrowth on the Dumps of the Chrysotile Asbestos Deposit
Journal Title: Lesnoy Zhurnal (Russian Forestry Journal) - Year 2021, Vol 11, Issue 5
Abstract
The studies were carried out on the dumps of overburden rocks and tailings of poor ores of the chrysotile asbestos deposit. According to the scheme of forest site zoning, the studying area belongs to the pre-forest steppe district of pine and birch forests of the Zabaikal’ye plain province of the West Siberian plain forest site area. The survey sites were laid out on the terraces of the dump along the running lines. Undergrowth was counted at each survey site. It was classified by viability, size (small, medium, large), and life form (tree, bush, scrub). The provision with undergrowth of the indicated type of disturbed soils was defined and recommendations for measures aimed at accelerating the process of reforestation were given. Undergrowth on the dumps is represented by Scots pine (Pinus sylvestris L.), silver birch (Betula pendula Roth.), aspen (Populus tremula L.), and goat willow (Salix caprea L.). Scots pine and silver birch are the dominant species in the undergrowth composition. Large share of Scots pine of scrub and bush form is the specific feature of the developing young growth. These specimens were found among small- and medium-sized undergrowth. It is the undergrowth of these heights that becomes an annual attrition without passing into the large-sized category. The latter is the main reason for faster conversion of the dumps into forest-covered area, for increasing the share of clay particles in the upper 50 cm thick dump layer, or for coating the dump surface by non-traditional fertilizers, in particular sewage sludge. It was noted that silvicultural trend in the dump reclamation on the chrysotile asbestos deposit is the most preferable. Scots pine should be preferred as the primary species for reclamation planning.
Authors and Affiliations
Yuriy V. Zaripov, Candidate of Agriculture; ORCID: https://orcid. org/0000-0001-6174-4001 Sergey V. Zalesov, Doctor of Agriculture, Prof. ; ResearcherID: H-2605-2019, ORCID: https://orcid. org/0000-0003-3779-410X Evgeniia S. Zalesova, Candidate of Agriculture, Assoc. Prof. ; ORCID: https://orcid. org/0000-0003-4403-8118 Artem S. Popov, Candidate of Agriculture; ResearcherID: AAN-6020-2021, ORCID: https://orcid. org/0000-0002-3060-9461 Evgeniy P. Platonov, Candidate of Agriculture, Assoc. Prof. ; ORCID: https://orcid. org/0000-0001-8502-1350 Natal’ya I. Starodubtseva, Candidate of Agriculture; ORCID: https://orcid.org/0000-0002-8251-8537
Keywords
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