The experience of disturbed soil recultivation on tantal-berill deposit of Malyshevsky are administration has been annotated in the paper. At has been estabeished that the most effective way of worked out quarries is fish industry and extraction damp waste and extracted ores enrichment – forest management. Besides recultivated quarries shoued be esed as antifire reservoirs. At has been proved experimentally the postibility to form on extraction damp of tantal-berill highly productive artificial and natural pine stands with deposit of trunk wood in 42-aged trees up to 334 m3/ha. On the base of recultivated damps it is advisable to form recreative zones for dwellers of settlements located near by.

Since the middle of the last century in the Urals of Russia there has been a problem of environmental pollution by man-made emissions. The purpose of this investigation has been to summarize the recultivation experience of Reftinskaya power plant ash dump. The station was put into operation in 1970 and it is the largest one in Russia. Specific feature of the used coal is high content of ash (47%). Daily consumption of coal in winter period constitutes 48 thousand tons. Yearly emissions of the station constitute 400 thousand tons. The main components of the emissions are sulphureous anhydride (up to 40%) solid stuff (up to 50%) and nitric oxides. The Scots pine (Pinus sylvestris L.) plantations on ash dumps have shown good adaptation and growth. The plantations have formed 143 m 3 /ha total volume at the age of 20 in 1 st site index of the recultivation site of the ash dump with ash layer up to 7 m. Weakly alkaline reaction of the ash spread by wind promoted soil dioxidation that results in soil fertility increasing significantly on territory of adjacent stands. Recultivation process includes two main stages which are ash dump surface covering with 25-40 cm soil layer, planting with 2-year old Scots pine (Pinus sylvestris L.) seedling.

Aim of study: Thinning efficiency after 18 years of cutting at the Scots pine (Pinus sylvestris L.) plantations, in the subzone of the dry grass steppe, were examined.Area of study: On 45-year-old Scots pine plantations on the territory of the state enterprise "ZhasylAimak" in Nur-Sultan city in the Northern Kazakhstan.Material and methods: The plantations were established by high density planting (13,300 seedlings/ha) of 2-year old seedlings. The planting was carried out on forest-suitable soils. To assess the silvicultural efficiency of the thinning in the plantation, the coefficient of growth tension or a complex estimated figure (CEF) was used.Main results: The research confirm that Scots pine plantations can be established in the subzone of dry fescue feather-grass steppe (Festuca valesiaca-Stipetum capillatae Sillinger 1930). The maximum silvicultural effect of thinning was achieved with three steps. In the 1 st step of the thinning of the forest, 10-15 years old trees are cut down. Trees with over-developed crown are also cut down. The 2 nd step is made in 25-30 years with thinning intensity of 25% by stock. The 3 rd step is made in 40-50 years in a uniform way.Highlights: In the harsh climatic conditions of Northern Kazakhstan steppe, deciduous trees and shrubs begin to age and die much earlier than the long-lived Scots pine.

Based on the materials of long-term research of departmental materials and production experience, an attempt was made to analyze the possibility of implementing the Russian Federation Government decree of May 7, 2019 № 566 «On the approval of the rules for performing reforestation or afforestation by persons using forests in accordance with Article 43–46 of the Forest code of the Russian Federation and by persons who have applied for an application to change the designated purpose of the forest area». It is noted that, despite the timeliness of the Russian Federation government resolution it does not fully comply with the regional conditions of a number of constituent entities of the Russian Federation and in particular the Khanty-Mansiisk Autonomous district — Yugra. In areas of oil and gas production, carrying out compensatory measures by creating forest plantations using ball-rooted seedlings on hard to reach burnt areas and in dead plantations will lead to unreasonably high costs for reforestation and the lack of agrotechnical and silvicultural care will result in the death of forest crops as well as discredit the compensatory measures. Considering some work experience on compensatory reforestation in the Khanty-Mansiisk Autonomous district — Yugra the suggestions were made to improve the compensatory measures.

On the basis of forest inventory data of the main Osinsky forestry, an attempt was made to analyze light coniferous stands and the availability of mature and overmature trees of a preliminary generation among them. The basis of the research is the analysis of a high-performance database using SQL queries to determine statistically reliable information using spreadsheets and geographic information systems. It has been established that the share of light coniferous plantations in the forestry area of the coniferous-deciduous (mixed) forest area in the European part of the Russian Federation does not exceed 14 % of the total area covered by forest vegetation and they are mainly represented by middle-aged pine forests of growth class I with a full stand of 0,7. About 72 % of light coniferous stands grow in the type of forest conditions B2. The proportion of larch in the total area of light coniferous stands, not exceeding 0,5 %, was determined. They are predominantly represented by medium-density young growths and middle-aged stands of I and II growth class and are confined to the type of forest conditions C2. A rather high availability of undergrowth with preliminary generation was shown only 8,11 % of ripe and mature light coniferous plantations do not have undergrowth. Spruce dominates in the composition of the undergrowth of preliminary generation, which occurs in 88,72 % of the area of ripe and overmature pine trees, and its density exceeds 3700 % / ha by 37,6 %. A significant proportion of plantations with the presence of undergrowth of spruce in the types of forest conditions with poor dry, moist and wet sandy soils require the replacement of pine with its undergrowth in order to avoid changing light coniferous plantations to less productive dark coniferous ones. Pine growth occurs in 3,2 % of the area of ripe and mature light coniferous plantations, which necessitates measures to facilitate its accumulation. In particular, it is possible to recommend mineralization of the soil under the seed year for pine, which will further minimize the cost of artificial reforestation. Data on the availability of undergrowth by groups of forest types and relative completeness make it possible to optimize the regime of selective fellings.