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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">isplta</journal-id><journal-title-group><journal-title xml:lang="ru">Известия Санкт-Петербургской лесотехнической академии</journal-title><trans-title-group xml:lang="en"><trans-title>Izvestia Sankt-Peterburgskoj lesotehniceskoj akademii</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2079-4304</issn><issn pub-type="epub">2658-5871</issn><publisher><publisher-name>СПбГЛТУ</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.21266/2079-4304.2021.237.131-150</article-id><article-id custom-type="elpub" pub-id-type="custom">isplta-249</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ЛЕСНОЕ ХОЗЯЙСТВО</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>FORESTRY</subject></subj-group></article-categories><title-group><article-title>Эффективность создания лесных культур лиственницы Сукачева в Нижегородской области</article-title><trans-title-group xml:lang="en"><trans-title>Seasonal changes in the pigment composition of needles of representatives of the genus spruce in the Nizhny Novgorod region</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6226-5547</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Улитин</surname><given-names>М. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Ulitin</surname><given-names>M. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>УЛИТИН Михаил Михайлович – аспирант кафедры лесных культур</p><p>603107, пр. Гагарина, д. 97, г. Нижний Новгород</p><p>ResearcherID (WoS) AAX-4328-2020</p></bio><bio xml:lang="en"><p>ULITIN Mikhail M. – Postgraduate student at the Department of Forest Plantations</p><p>603107. Gagarina av. 97. Nizhny Novgorod</p><p>ResearcherID (WoS) AAX-4328-2020</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5024-7464</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бессчетнов</surname><given-names>В. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Besschetnov</surname><given-names>V. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>БЕССЧЕТНОВ Владимир Петрович, заведующий кафедрой лесных культур, доктор биологических наук, профессор</p><p>603107, пр. Гагарина, д. 97, г. Нижний Новгород</p><p>ResearcherID (WoS): S-5889-2016</p></bio><bio xml:lang="en"><p>BESSHETNOV Vladimir P. – DSc (Biological) Head of the Department of Forest Plantations, Professor</p><p>603107. Gagarina av. 97. Nizhny Novgorod</p><p>ResearcherID (WoS): S-5889-2016</p></bio><email xlink:type="simple">lesfak@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Нижегородская государственная сельскохозяйственная академия</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Nizhny Novgorod State Agricultural Academy</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>08</day><month>03</month><year>2024</year></pub-date><volume>0</volume><issue>237</issue><fpage>131</fpage><lpage>150</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Улитин М.М., Бессчетнов В.П., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Улитин М.М., Бессчетнов В.П.</copyright-holder><copyright-holder xml:lang="en">Ulitin M.M., Besschetnov V.P.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://izvestiya-lta.spbftu.ru/jour/article/view/249">https://izvestiya-lta.spbftu.ru/jour/article/view/249</self-uri><abstract><p>Изучали таксационные показатели лесных культур лиственницы Сукачева, заложенных в 1986 г. на юго-западной границе естественного распространения вида в Сергачском межрайонном лесничестве Нижегородской области. Координаты первого участка N 55.541378, E 45.471119; второго – N 55.541388, E 45.471125. Получена оценка эффективности их создания в указанном регионе. Методологической основой рабочих методик служил принцип единственного логического различия. Работа выполнялась полевым стационарным методом. Характеристика культур лиственницы давалась по результатам натурного обследования. Пробные площади закладывали в соответствии с действующим отраслевым стандартом. Подтверждена благоприятность лесорастительных условиях для естественного произрастания лиственницы Сукачева и широкие возможности интродукции близкородственных видов. Обнаружена неодинаковая изменчивость таксационных показателей. В частности, по диаметру ствола и его высоте она незначительна и отнесена преимущественно к низкому уровню: на первом участке 14,21% и 11,34%; на втором – 17,11 и 9,16% соответственно. По другим признакам изменчивость выше (чаще средний и повышенный уровень) и в ряде случаев достигает высокого (объем ствола) и очень высокого (коэффициент асимметрии кроны) уровня. Зафиксированы существенные различия между участками лесных культур по большинству таксационных показателей, подтвержденные дисперсионным анализом. Эффект их влияния на общий фон фенотипической дисперсии неодинаков. По диаметру ствола он минимален и составил 6,68±1,37%. Наибольшие оценки получены по расстоянию до первого живого сучка – 30,42±1,05%. Определено, что лесные культуры лиственницы Сукачева, созданные в Нижегородской области, достигая к возрасту 34 высоты 14 – 15 м, формируют насаждения первого класса бонитета.</p></abstract><trans-abstract xml:lang="en"><p>We studied the taxation indicators of forest crops of Sukhdev larch, laid in 1986 on the south-western border of the natural distribution of the species in the Sergachsky interdistrict forestry of the Nizhny Novgorod region. The coordinates of the first section are N 55.541378, E 45.471119; the second section is N 55.541388, E 45.471125. An assessment of the effectiveness of their creation in the specified region was obtained. The methodological basis of the working methods was the principle of the only logical difference. The work was carried out by the field stationary method. The characteristics of larch crops were given based on the results of a field survey. The test areas were laid in accordance with the current industry standard. The favorable forest conditions for the natural growth of Sukachev larch and the wide opportunities for the introduction of closely related species were confirmed. Unequal variability of taxation indicators was found. In particular, in terms of trunk diameter and height, it is insignificant and is mainly attributed to the low level: in the first section, 14.21% and 11.34%; in the second-17.11 and 9.16%, respectively. According to other signs, the variability is higher (more often the average and increased level) and in some cases reaches a high (trunk volume) and very high (crown asymmetry coefficient) level. Significant differences between forest crop plots were recorded in most of the taxation indicators, which were confirmed by the analysis of variance. The effect of their influence on the general background of the phenotypic variance is not the same. By the diameter of the trunk, it is minimal and amounted to 6.68±1.37%. The highest estimates were obtained for the distance to the first live knot – 30.42±1.05%. It is determined that the forest cultures of Sukachev larch, created in the Nizhny Novgorod region, reaching a height of 14-15 m by the age of 34, form plantings of the first class of bonitet.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>лиственница Сукачева</kwd><kwd>лесные культуры</kwd><kwd>таксационные показатели</kwd><kwd>изменчивость</kwd><kwd>дисперсионный анализ</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Sukhdev larch</kwd><kwd>forest crops</kwd><kwd>taxation indicators</kwd><kwd>variability</kwd><kwd>ANOVA</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Бессчетнов В.П., Бессчетнова Н.Н. Образование и лигнификация ксилемы плюсовых деревьев сосны обыкновенной // ИВУЗ. Лесной журнал. 2013. № 2/332. С. 45–52.</mixed-citation><mixed-citation xml:lang="en">Al Afas N., Marrona N., Ceulemansa R. 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