Institute of Forestry of the Russian Academy of Sciences
Russian Federation
Russian Federation
The results of leaching of forest-steppe ecotypes of Scots pine (Pinus sylvestris L.) in the Avsyuninsky forestry of the Orekhovo-Zuyevsky branch of the Mosoblles State Autonomous Institution in the Moscow Region, located on the territory of the Meshcherskaya lowland in the eastern part of the Moscow region, are presented. According to the data obtained, it was found that the forest-steppe ecotypes of Mordovia (28.7 m), Orlovsky (26.2 m) and Kursky (25.5 m) are the leaders in height, growing like the local pine according to the Ib class of boniteness. The average diameter index was determined, and the best result was recorded for the Kursk, Moscow, and Mordovian (23.2...26.4 cm) ecotypes. It is shown that ecotypes from the Kursk (616 m3/ha) and Orel (594 m3/ha) regions, as well as the Republic of Mordovia (584 m3/ha) regions, are characterized by a high stock of stem wood, exceeding the control (Moscow region — 473 m3/ha — 100%) by 123...130%. For the leading provinces in terms of the stock of stem wood, a high average increase in the stock of 10.1…10.6 m3 per site per year was also recorded. The average volumes of pine trunks at the site of geographical crops vary from 0.479 m3 (Orel ecotype) to 0.748 m3 (Mordovian ecotype). Promising forest-steppe ecotypes from the Kursk, Oryol regions, as well as the Republic of Mordovia have been identified.
geographical forest plantations, Scots pine, Pinus sylvestris, ecotype, silvicultural effect, Meshchera Lowland
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