Growth characteristics of modal pine stands, planted on abandoned agricultural lands in Novgorod-Siversky and Chernihiv Polissya
Journal Title: Лісівництво і агролісомеліорація - Year 2012, Vol 121, Issue
Abstract
Scots pine forests planted on abandoned agricultural lands are infected with root rot fungus (Heterobasidion annosum (Fr) Bref.) due to the disturbance of natural forest sites. The disease decreases the productivity of stands and significantly affects dynamics of their growth and formation. Existing yield tables were developed primarily for full stands and didn’t take into account regional characteristics of their growth and condition. Therefore it was necessary to investigate the growth characteristics of root rot affected and healthy modal pine stands in different geographic areas of Polissya to solve some problems of forest management, forestry planning and silviculture. Mathematical models and yield tables for modal pine forests – healthy and infected with root rot fungus – planted on abandoned agricultural lands in conditions of fresh oak-pine subor in Novgorod-Siversky and Chernihiv Polissya were developed. Estimation and forecast of dynamics of forest growth parameters in these planted forests were carried out. It was found that timber stock of planted forests in the die-back focus is less than in healthy forest by 5–28 % in Novgorod-Siversky Polissya and by 14–36 % in Chernihiv Polissya depending on the age class. The overall productivity of both healthy and root rot infected modal pine stands in Novgorod-Siversky Polissya is higher than the same stand characteristics in Chernihiv Polissya by 15 and 19 %, respectively.
Authors and Affiliations
M. Vedmid, O. Kobets, L. Lunachevsky, V. Lozitsky
Keywords
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