13-YEAR-OLD DYNAMICS OF THE STATE OF FLOODPLAIN OAK FORESTS OF THE BEREZINA RIVER

UDC 630*443.3:630*182.21

  • Sazonov Aleksandr Aleksandrovich − Senior Lecturer, the Department of Forest Protection and Wood Science. Belarusian State Technological University (13a, Sverdlova str., 220006, Minsk, Republic of Belarus). Head of 1 Minsk Forest Inventory Expedition. RUE “Belgosles” (27, Zheleznodorozhnaya str., 220089, Minsk, Republic of Belarus). E-mail: lesopatolog@rambler.ru

DOI: https://doi.org/10.52065/2519-402X-2021-246-16-128–137

Key words: Quercus robur L., floodplain oak forest, mass drying, stem rot, permanent sample area, forest pathology monitoring.

For citation:Sazonov A. A. 13-year-old dynamics of the state of floodplain oak forests of the Berezina river. Proceedings of BSTU, issue 1, Forestry. Nature Management. Processing of Renewable Resources, 2021, no. 2 (246), pp. 128–137 (In Russian). DOI: https://doi.org/10.52065/2519-402X-2021-246-16-128–137.

Abstract

On the basis of 13-year monitoring on a permanent sample area, the pathological and forest-forming processes occurring in the floodplain oak forest are described. Observations characterise the state of the oak ecosystem at the stage of recovery after drying in 2003–2008. In the post-stress period, such chronic diseases dominate as invaders of stem rot, which attack trees to a great extend, and oak cancer, which affects the oak stand to an average degree. Acute pathological processes in the plantings are not revealed. It is shown that diseases and pests of the forest during the period of mass drying act as catalysts for successional changes in the stand. The restoration of the ecosystems of floodplain forests occurs due to the formation of the second tier of the stand of undergrowth, forming both under forest canopy and in the glades that appeared as a result of drying out and cutting down of oaks trees. If there is a natural renewal of oak, it is not present in the second tier. It is assumed that the succession processes occurring on the test area are characteristic for dry oak forests, since they have not been regulated by floods for several decades. In the conditions increasing dryness of the climate, a complex plantation may be formed here with the dominance of shade-tolerant broadleaved species of trees, and individual old oaks rising above the forest canopy.

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