Abstract
Siberian cities are characterized by one feature: many of them have preserved natural woodlands during construction, which on the one hand give a completely unusual, unique appearance to cities, on the other hand, trees suffer from recreational load, high levels of pollution and other anthropogenic factors. To assess the condition of pine stands, 3 test areas (0.5 ha, 0.1 ha and 1.9 ha) were laid. All considered plantings of natural origin are areas of woodland that were preserved during the construction of the city and are subject to recreational and industrial pollution. The test sites belong to areas with a high anthropogenic load, as they are located along highways and in close proximity to residential and public buildings and are part of parks with a high recreational load. The average age of trees is 70–80 years. The sanitary condition of the massif and its landscape characteristics are also determined. The critical condition of the massif is established, requiring sanitary logging and other forestry measures that could reduce recreational and anthropogenic loads.
Highlights
All considered plantations of natural origin are areas of the forest preserved during the construction of the city, subject to recreational effects and industrial pollution
Test areas belong to territories with a high anthropogenic load, as they are located along roads and in close proximity to residential and public buildings and are part of parks with a high recreational load
The purpose of this research work is to study the conditions for the growth and development of Scots pine masses (Pinus sylvestris L.). in the center of the village of Energetik in the city of Bratsk with high attendance
Summary
Place of research: Irkutsk region, Bratsk city, residential district Energetik. On the territory of Bratsk and the Bratsk region, southern taiga and taiga natural complexes of Central Siberia prevail [1, 2]. The dominant breed in forests of natural origin is Scots pine (Pinus sylvestris L.) - 57% of the total composition of the woodland, hanging birch (Betula pendula Roth.) And fluffy birch (Betula pubescens Ehrh.) Make up 17%, Siberian larch (Larix sibirica Ledeb.) - 6%, aspen (Populus tremula L.) - 16%, in much smaller quantities there are ordinary spruce (Picea abies L.), Siberian spruce (Picea obovata Ledeb.), goat willow (Salix caprea L.), shrub alder (Duschekia fruticosa Rupr.), common grouse (Sorbus aucuparia L.) and Siberian grouse (Sorbus sibirica Hedl.). The predominant breed in urban planting is balsamic poplar (Populus balsamifera L.), In much smaller quantities are represented hanging birch (Betula pendula L.) and fluffy birch (Betula pubescens Ehrh.) - 11%, tree-shaped caragana (Caragana arborescens Lam.) - 6%, squat elm (Ulmus pumila L.) - 4%, Siberian mountain ash (Sorbus sibirica Hedl.) - 4%, Siberian larch (Larix sibirica Ledeb.) 3%, apple berry (Malus baccata L.) - 3% of the total. The remaining representatives of trees and shrubs make up 2% or less of the total
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