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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">10.21266/2079-4304.2024.249.38-54</article-id><article-id custom-type="elpub" pub-id-type="custom">isplta-323</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>Оценка потенциала роста лесов в Иракском Курдистане на основе анализа метеоклиматических данных</article-title><trans-title-group xml:lang="en"><trans-title>Assessment of the forests growth potential in Iraqi Kurdistan based on the analysis of hydro meteorological data</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0004-5115-8286</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Авла</surname><given-names>Авла Харди Какакхан</given-names></name><name name-style="western" xml:lang="en"><surname>Awla</surname><given-names>Avla Hardy Kakakhan</given-names></name></name-alternatives><bio xml:lang="ru"><p>Авла Харди Какакхан Авла - аспирант кафедры лесной таксации, лесоустройства и геоинформационных систем.</p><p>194021, Институтский пер., д. 5, Санкт-Петербург</p></bio><bio xml:lang="en"><p>Awla Hardy Kakakhan Awla - PhD student of the Department of Forest Inventory, Management and Geoinformation Systems St. Petersburg State Forest Technical University.</p><p>Institute per. 5, St. Petersburg, 194021</p></bio><email xlink:type="simple">hardy.awla@su.edu.krd</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8795-2888</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Алексеев</surname><given-names>А. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Alekseev</surname><given-names>A. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Алексеев Александр Сергеевич - заведующий кафедрой лесной таксации, лесоустройства и геоинформационных систем СПбГЛТУ им. С.М. Кирова, доктор географических наук, профессор.</p><p>Институтский пер., д. 5, Санкт-Петербург, 194021</p><p>Web of Science Researcher ID F-6891-2010, Scopus Author ID 55892224800</p></bio><bio xml:lang="en"><p>Aleksandr S. Alekseev - DSc (Geography), Professor, Head of the Department of Forest Inventory, Management and Geographical Information Systems, St. Petersburg State Forest Technical University.</p><p>Institute per. 5, St. Petersburg, 194021</p><p>Web of Science Researcher ID F-6891-2010, Scopus Author ID 55892224800</p></bio><email xlink:type="simple">a_s_alekseev@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Санкт-Петербургский государственный лесотехнический университет им. С.М. Кирова</institution><country>Россия</country></aff><aff xml:lang="en"><institution>St. Petersburg State Forest Technical University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>07</day><month>08</month><year>2024</year></pub-date><volume>0</volume><issue>249</issue><fpage>38</fpage><lpage>54</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Авла А.Х., Алексеев А.С., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Авла А.Х., Алексеев А.С.</copyright-holder><copyright-holder xml:lang="en">Awla A.H., Alekseev A.S.</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/323">https://izvestiya-lta.spbftu.ru/jour/article/view/323</self-uri><abstract><p>Установлено, что индексы CVP и ГТК, определяющие потенциальную продуктивность растительного покрова, в том числе и лесов, на изучаемой территории имеют высокую годичную изменчивость для всех рассмотренных районов. Средние коэффициенты вариации индексов CVP и ГТК равны 38,5 и 48,4%, соответственно. Изучение изменений индексов по годам показало наличие линейной тенденции (тренда) к их увеличению за изучаемый период. Более выражена тенденция к увеличению индекса CVP. Графики изменений индексов показали наличие значительных случайных колебаний (отклонений) индексов от трендов. Случайный характер колебаний проверен с помощью медианного теста. Для расчетов потенциального прироста древесной растительности на основе литературных данных получено уравнение связи величины прироста и индекса CVP с высоким коэффициентом детерминации, равным 94,5%. С помощью этого уравнения проведены расчеты потенциального прироста древесной растительности для всех районов на изучаемой территории. Расчеты показали, что в результате высокой изменчивости индексов CVP и ГТК по годам изучаемого периода (1995-2021 гг.) потенциальная продуктивность лесов на изучаемой территории составляет в среднем 0,7 м3/га-год. В благоприятные годы максимальные значения прироста могут достигать 1,5 м3/га-год, а в неблагоприятные прирост может падать до нуля, ставя таким образом древесную растительность на грань выживания. Установлена прямая пропорциональная связь между величинами индексов CVP и ГТК с коэффициентом детерминации 86,0% для изучаемой территории, что позволяет использовать один индекс вместо другого в случае такой необходимости. В целом, гидротермические условия для роста лесов в районе г. Эрбиль следует оценить как неблагоприятные.</p></abstract><trans-abstract xml:lang="en"><p>It was found that the CVP and HTC indices, which determine the potential productivity of vegetation cover, including forests, in the studied area, have high annual variability for all the considered districts. The average coefficients of variation of the CVP and HTC indices are 38.5 and 48.4%, respectively. The study of changes in indices over the years showed the presence of a linear trend towards their increase over the period under study. The tendency to increase the CVP index is more pronounced. The graphs of index changes showed the presence of significant random fluctuations (deviations) of indices from trends. The random nature of the fluctuations was verified using a median test. To calculate the potential growth of forests based on the literature data, an equation was obtained for the relationship between the growth rate and the CVP index with a high coefficient of determination equal to 94.5%. Using this equation, calculations of the potential growth of wood volume for all areas in the study area were carried out. Calculations have shown that as a result of the high variability of the CVP and HTC indices over the years of the studied period (1995-2021), the potential productivity of forests in the studied area is on average 0.7 m3/ha-year. In favorable years, the maximum growth values can reach 1.5 m3/ha-year, and in unfavorable years, the increase can fall to zero, thus putting woody vegetation on the brink of survival. A direct proportional relationship has been established between the values of the CVP and HTC indices with a determination coefficient of 86.0% for the studied territory, which allows using one index instead of the other if necessary. In general, the hydrothermal conditions for forest growth in the Erbil region area should be assessed as unfavorable.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>температура</kwd><kwd>осадки</kwd><kwd>индекс Патерсона</kwd><kwd>CVP</kwd><kwd>гидротермический коэффициент</kwd><kwd>ГТК</kwd><kwd>прирост</kwd></kwd-group><kwd-group xml:lang="en"><kwd>temperature</kwd><kwd>precipitation</kwd><kwd>Paterson index</kwd><kwd>CVP</kwd><kwd>hydrothermal coefficient</kwd><kwd>HTC</kwd><kwd>forest growth</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">Авла Х.К.А., Алексеев А.С. Анализ состояния растительного покрова Иракского Курдистана c использованием материалов дистанционного зондирования земли и ГИС-технологий // Цифровые технологии в лесном секторе : матер. III науч.-технич. конференции-вебинара 24-25 февраля 2022 года. Санкт-Петербург. С. 3-5. 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