kaz65Почвоведение и агрохимияSoil Science and Agrichemistry1999-740X2959-3433Казахский научно-исследовательский институт почвоведения и агрохимии имени У.У. Успанова10.51886/1999-740X_2026_2_96kaz65-1118Research ArticleМОЛОДЫЕ УЧЁНЫЕYOUNG SCIENTISTSАгрохимические свои ства и потенциал плодородния горно-лесных почв лянкяран-астара, поддерживающих железное дерево (Parrotia persica) и каспии ское рожковое дерево (Gleditsia caspica)Agrochemical properties and fertility potential of mountain-forest soils in the Lankaran-Astara region supporting persian ironwood (Parrotia persica) and caspian locust (Gleditsia caspica)https://orcid.org/0009-0001-6277-7136АхадовТ.AhadovT.

АЗ 1000, Баку, Хатаинский район, ул. Ильгара Зульфугарова, 23

Akhadov Tural Kamal oglu - PhD student

AZ1000, 23 Ilgar Zulfuqarov Street, Baku

ehedov-tural@mail.ruИнститут географии Министерства науки и образования Республики АзербайджанАзербайджанInstitute of Geography of the Ministry of Science and Education of the Republic of AzerbaijanAzerbaijan2026210620260296107Copyright © Ахадов Т., 20262026Ахадов Т.Ahadov T.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://journal.soil.kz/jour/article/view/1118

В этом исследовании изучается взаимосвязь между особенностями распространения двух реликтовых видов деревьев – Парротия персидская (Parrotia persica) и Каспии скои гледичия (Gleditsia caspica) и почвенными условиями в горных лесных экосистемах Ленкоранско-Астаринского экономического региона. Исследование проводилось в период с 2022 по 2025 год. В общеи сложности из 28 почвенных профилеи было отобрано 112 образцов почвы, которые были проанализированы на содержание общего органического углерода (ООУ), ИК-спектроскопию, рН, распределение частиц по размерам (лазерная дифракция), состав микроэлементов (ICP-MS) и глинисто-минеральныи состав (XRD). Результаты показывают, что P. persica достигает своеи максимальнои плотности (410 деревьев/га) на северных склонах на высоте 600-800 м, в то время как G. caspica достигает более высокои плотности (265 деревьев/га) на юго-восточных склонах на высоте 400- 600 м. Бурые почвы горных лесов, сформировавшиеся под P. persica, характеризуются более высоким содержанием гумуса (6,2%), ООУ (4,2%) и слабокислым рН (6,0), в то время как же лтые и бурые почвы горных лесов под G. caspica характеризуются умеренным содержанием гумуса (3,5%), ООУ (2,4%) и неи тральными рН (6,5). Почвы под P. persica обогащены Zn (54 мг/кг) и Cu (14,5 мг/кг), в то время как почвы под G. caspica содержит более высокие концентрации Fe (5400 мг/кг) и Mn (400 мг/кг). Почвы под P. persica обладают высоким потенциалом для органического земледелия, в то время как почвы под G. caspica имеют неи тральныи рН, что делает их пригодными для выращивания широкого спектра культур.

This study investigates the relationship between the distribution patterns of two relict tree species-ironwood (Parrotia persica) and Caspian locust (Gleditsia caspica) - and soil conditions in the mountain forest ecosystems of the Lankaran-Astara economic region. The research was conducted between 2022 and 2025. A total of 112 soil samples were collected from 28 soil profiles and analyzed for total organic carbon (TOC), FTIR spectroscopy, pH, particle size distribution (laser diffraction), trace element composition (ICP-MS), and clay mineral composition (XRD). The results indicate that P. persica reaches its maximum density (410 trees/ha) on northern slopes at elevations of 600–800 m, whereas G. caspica attains higher density (265 trees/ha) on southeastern slopes at 400–600 m. Mountain forest brown soils formed under P. persica show higher humus content (6.2%), TOC (4.2%), and slightly acidic pH (6.0), while mountain forest yellow and brown soils under G. caspica are characterized by moderate humus content (3.5%), TOC (2.4%), and neutral pH (6.5). Soils under P. persica are enriched in Zn (54 mg/kg) and Cu (14.5 mg/kg), whereas those under G. caspica contain higher concentrations of Fe (5400 mg/kg) and Mn (400 mg/kg). The soils under P. persica exhibit high potential for organic farming, while those under G. caspica have neutral pH, making them suitable for a wide range of crops.

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The authors declare that there are no conflicts of interest present.