Protective Forest Belts of Quercus robur L. and Fraxinus excelsior L. in the Steppe Zone. P. 194–204

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633.11:630*116.64

DOI:

https://doi.org/10.37482/0536-1036-2026-3-194-204

Abstract

The Lugansk People’s Republic is covered by steppe terrain and lies in the middle reach of the Seversky Donets River basin. The research aims at studying the inventory parameters and the influence of the protective forest belt on the biometric parameters of winter wheat. Two sample plots were surveyed. In the first plot, the upper layer consists mainly of dead tree stand and a small number of trees of II and III Kraft classes. In the second plot, the stand consists of trees of I, II, and III Kraft classes. The highest average height of Fraxinus excelsior L. was observed in the 2nd replication, which was 9.9±0.23 m, where the middle layer consists of Fraxinus excelsior L. and Prunus mahaleb L., while the upper layer contains no Quercus robur L. trees. It has been found that, in the presence of Q. robur L. and F. excelsior L. in the upper layer, a single accompanying species, such as Acer tataricum L., is sufficient for the protection forest belt to perform its agricultural functions. It was found that the average height of F. excelsior L. ranged from 7.8 ± 0.34 to 9.9 ± 0.23 m, and in some cases reached 12.3 m, indicating the need for silvicultural measures aimed at improving site conditions. There are also individual trees of F. excelsior L. with a height of 30 m (4th repetition). It was found that when P. mahaleb L. (height 4.2±0.39 m) was present in the stand, A. tataricum L. reached a height of 3.5±0.14 m. The average height of Q. robur L. did not exceed 13.4±0.71 m in all repetitions. The results have shown that the greatest increase in winter wheat yield was observed 5–15 m from the protective forest belt with the preserved tree stand, and 5–10 m from the forest belt where no tree stands remained.

Authors

Olesya V. Gribacheva, Candidate of Biology; ResearcherID: ADS-2635-2022, ORCID: https://orcid.org/0000-0002-6192-3939

Affiliation

Lugansk State Agrarian University named after K.E. Voroshilov, ter. LNAU, 1, Artyomovskiy District, Lugansk, Russia, 291008; kafles@mail.ru

Keywords

protective forest belt, average stand diameter, average stand height, forest belt influence range, Fraxinus excelsior L., Quercus robur L., winter wheat, wheat biometric parameters

For citation

Gribacheva O.V. Protective Forest Belts of Quercus robur L. and Fraxinus excelsior L. in the Steppe Zone. Lesnoy Zhurnal = Russian Forestry Journal, 2026, no. 3, pp. 194–204. (In Russ.). https://doi.org/10.37482/0536-1036-2026-3-194-204

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