USE OF SEEDLINGS WITH CLOSED ROOT SYSTEM FOR BIOLOGICAL RECLAMATION OF SILT PONDS UP “MINSKVODOKANAL”
UDC 630*233
Key words: planting material with a closed root system, silt pond, experimental forest cultures, preservation and growth of woody plants.
For citation: Yurenya А. V., Yakimov N. I. Use of seedlings with closed root system for biological reclamation of silt ponds UP “Minskvodokanal”. Proceedings of BSTU, issue 1, Forestry. Nature Management. Processing of Renewable Resources, 2022, no. 1 (252), pp. 53–57 (In Russian). DOI: https://doi.org/10.52065/2519-402X-2022-252-1-53-57.
Abstract
The purpose of the research was to study the influence of soil and soil conditions of a silt pond, after sand sands were applied to its surface, on the growth and preservation of experimental plantings created by planting material with a closed root system. In the third year of growth, the safety of young common pine trees was 78.1%, and European spruce – 85.5%. Slightly less preservation was observed in birch hanging (60.4%). Black alder showed low safety (31.3%). The pine had well-formed apical buds, thick sprouts and dark green needles. The spruce apical buds were small in size, the needles are rare and have a yellow-green color. Pine at the age of three has an average height of 75.1 cm, and the annual increase in height is 21.3 cm, which indicates the successful growth of this breed. Spruce in terms of growth intensity is significantly inferior to pine. The average height of fir plantings is 47.8 cm, and the increase in height is 12.6 cm. Good growth indicators are observed in birch, in which the average height is 150.8 cm, and the annual increase in height is 38.1 cm. Black alder has average growth indicators, its height is 65 cm, and the increase in height is 16.4 cm. Therefore, for the biological reclamation of silt ponds, planting material with a closed root system of common pine and birch can be recommended. European spruce in the conditions of growing a silt pond has low growth indicators, and black alder has low preservation.
References
- Zhigunov A. V. Teoriya i praktika vyrashchivaniya posadochnogo materiala s zakrytoy kornevoy sistemoy [Theory and practice of growing planting material with a closed root system]. St. Petersburg, SPbNIILH Publ., 2000. 294 p. (In Russian).
- Zhigunov A. V., Shevtchuk S. V. Forest plantations of pine and spruce from planting material grown by the combined method. Lesnoy zhurnal [Forest journal], 2006, no. 6, pp. 13–19 (In Russian).
- Mochalov B. А. To the evaluation of substrates for growing pine seedlings with closed roots. Voprosy tayezhnogo lesovodstva na Yevropeyskom Severe [Issues of taiga forestry in the European North], 2005, pp. 123–136 (In Russian).
- Mochalov B. А., Sen’kov A. O. Growth of pine seedlings with closed and open roots in the cultures of the taiga zone. Lesnoy zhurnal [Forest journal], 2006, no. 6, pp. 13–19 (In Russian).
- Alm A. A. Status of containerized forest seedling research in Minnesota. Minn. Acad. Sci. Journal. 1975, no. 41, pp. 18–21.
- Mayseenok A. P., Kopytkov V. V. Growth of pine crops created by various planting material. Lesnoy zhurnal [Forest journal], 1993, no. 3, pp. 32–33 (In Russian).
- Mochalov B. А., Motchalova G. А. The use of different types of planting material for reforestation in the taiga zone of the European part of Russia. Genezis, geografiya, antropogennyye izmeneniya i plodorodiye pochv. Sibirtsevskiye chteniya: trudy XI s’’yezda RGO [Genesis, geography, anthropogenic changes and soil fertility. Sibirtsev Readings: Proceedings XI Congress of the Russian Geographical Society], 2000, issue 6, pp. 85–86 (In Russian).
- Rodin A. R. The phenomenon of chemotropism in the creation of coniferous crops by seedlings with a closed root system. Lesovodstvo, lesnyye kul’tury i pochvovedeniye [Forestry, forest cultures and soil science], 1978, issue 7, pp. 98–102 (In Russian).
- Mochalov B. А., Sen’kov A. O., Mochalova G. А. Changes in environmental conditions at felling areas during soil preparation and their influence on the growth of pine crops from seedlings with closed roots. Sokhranim planetu Zemlya: sbornik Mezhdunarodnogo ekologicheskogo foruma [Let’s Save the Planet Earth: collection Internacional ecological forum]. St. Petersburg, 2004, pp. 333–337 (In Russian).
- Sinnikov A. S., Mochalov B. А., Yarkov V. I. The quality of soil preparation with the PKL-70 plow in a fresh felling. Materialy godichnoy nauchnoy sessii za 1972 god [Materials of the annual scientific session for 1972], 1973, pp. 60–61 (In Russian).
- Gavrilova O. I. Lesovosstanovleniye vyrubok i produktivnost’ lesnykh kul’tur khvoynykh porod Respubliki Kareliya. Avtoreferat dissertatsii doktora sel’skokhozyayastvennykh nauk [Reforestation of felling areas and productivity of coniferous forest plantations in the Republic of Karelia. Abstract of thesis DSc (Agriculture)]. Arkhangelsk, 2011. 37 p. (In Russian).
- Sokolov A. I., Kharitonov V. A. Pekkоеv А. N., Krivenko Т. I. Preservation and growth of pine crops created by planting material with a closed root system in the conditions of Karelia. Izvestiya vysshikh uchebnykh zavedeniy. Lesnoy zhurnal [Proceedings of higher educational institutions. Forest journal], 2015, vol. 6, no. 6, pp. 46–56 (In Russian).
- Morozova I. V. Zakonomernosti rosta kul’tur sosny v usloviyakh suktsessiy rastitel’nosti na vyrubkakh yuzhnoy Karelii. Dissertatsiya kandidata sel’skokhozyaystvennykh nauk [Regularities of growth of pine crops in conditions of vegetation succession in clear-cut areas of southern Karelia. Dissertation PhD (Agriculture)]. Arkhangelsk, 2011. 218 p. (In Russian).
- Zagreev V. V. Geograficheskiye zakonomernosti rosta i produktivnosti drevostoyev [Geographic patterns of growth and productivity of forest stands]. Мoscow, Lesnaya promyshlennost’ Publ., 1978. 240 p. (In Russian).
