Open AccessFEATURES OF FORMATION OF PROTECTIVE PLANTINGS FROM A BIRCH HANGING IN THE CENTRAL FOREST-STEPPE OF RUSSIA
Author(s) -
Vyacheslav Mikhin,
Елена Михина
Publication year - 2020
Publication title -
lesotehničeskij žurnal
Language(s) - English
Resource type - Journals
ISSN - 2222-7962
DOI - 10.34220/issn.2222-7962/2019.4/5
Subject(s) - land reclamation , arable land , windbreak , sowing , steppe , chernozem , agroforestry , forest steppe , environmental science , forestry , taiga , forest ecology , geography , ecosystem , agronomy , ecology , soil water , biology , soil science , agriculture
Negative natural phenomena, erosive processes in agroforestry of the European part of Russia are stabilized using protective forest stands. When creating artificial linear plantations, it is necessary to take into account their silvicultural and reclamation properties. The most efficient are stands with the participation of fast-growing species. Using taxation methods, we studied the growth of tree species (drooping birch) in the age dynamics in various soil conditions and depending on forest cultural, agrotechnical methods of creation. More significant biometric growth indicators are observed in field-protecting forest strips 7.5-10.0 m wide with a plant density of 4-5 thousand trunks per 1 ha, where a highly efficient blown structure is formed. In narrow protective stands with the participation of birch, the biometric growth indicators (diameter, height) have a higher value (1.4-1.6 times) compared with forest reclamation objects, where the width exceeds 50 % or more in the compared variants. Pure horticultural forest strips are most effective when placing seats 4.0 × 4.0 m. In artificial middle-aged stands, growth rates are 12.0-26.8 % higher on chernozem typical in comparison with other soil conditions. The intervals of ameliorative influence on the landscape of protective planting systems were determined. To optimize agro-territories in the forest-steppe conditions, shelterbelts should occupy an area of at least 3.13 % from arable land. Protective planting systems, where optimal conditions for the growth of rocks are combined, and the placement parameters in the landscape make it possible to have biologically stable ecosystems with a high reclamation effect.