SOILS OF STANDS OF COMMON ASH (FRAXINUS EXCELSIOR) IN THE BELARUSIAN POLESIE, THEIR STRUCTURE, COMPOSITION

UDC 630*116.24:630*416.16

Sokolovskiy Ivan Vasilievich − PhD (Agriculture), Assotiate Professor, Assistant Professor, the Department of Forest Plantations and Soil Science. Belarusian State Technological University (13a, Sverdlova str., 220006, Minsk, Republic of Belarus). E-mail: sivsoc@mail.ru

Bespalyy Andrey Aleksandrovich − Head of the Scientific Department. Pripyatsky National Park (7a, Glushko str., agro-town Lyaskovichi, 247946, Petrikov district, Gomel region, Republic of Belarus). E-mail: andrei.bespalyi@mail.ru

DOI: https://doi.org/ 10.52065/2519-402Х-2023-270-2-7.

Key words : soddy soil, marsh, common ash, birch, black alder, oak, moisture, groundwater level, construction, grading, humus, drying out, roots, structure.

For citation: Sokolovskiy I. V., Bespalyy A. A. Soils of stands of common ash (Fraxinus excelsior) In the Belarusian Polesie, their structure, composition and properties. Proceedings of BSTU, issue 1, Forestry. Nature Management. Processing of Renewable Resources, 2023, no. 2 (270), pp. 54–59. DOI: 10.52065/2519-402Х-2023-270-2-7 (In Russian).

Abstract

The conditions for the growth of plantings of common ash in the Belarusian Polesie were studied. It has been established that ash grows on fertile soddy and soddy-calcareous gleyic and gley soils, as well as on peaty-gley soils of low-lying bogs. It was found that from October to May, gleevate and gleev soils are characterized by excessive moisture, and in August, groundwater sinks to a depth of up to 2 m, the root layer is dried up and its separation from groundwater due to the low water-lifting capacity of sandy illuvial horizons. Thus, unfavorable conditions for plant growth are created. During the period of drying of the root-inhabited soil layer before withering moisture, a coarse-grained structure is formed with the formation of non-capillary pores, which, in combination with the hydrophobicity of colloids of humic nature, prevent the rapid saturation of the soil with moisture even after heavy summer precipitation, which increases the time interval with an unfavorable water regime. Desiccation of the soil, its freezing and thawing lead to intensive damage (rupture) of small roots, which contributes to the weakening of plants and infection with pathogenic microflora.

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References

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10.03.2023