Жарияланымдар / Публикации

Постоянный URI для этого сообществаhttps://cris.qyzpu.kz/handle/123456789/2

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2024 - 20253

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Автор: search.filters.author.Bagila Abdullayeva

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    Assessment of Vegetation and Soil Characteristics of Calligonum Leucocladum Populations in the Balkhash Region, Kazakhstan
    (2025-02-10)
    Alibek Ydyrys
    ;
    Мaral Mussina
    ;
    Saltanat Nazarbekova
    ;
    Bektemir B. Osmonali
    ;
    Raushan Dossymbekova
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    Adaptation Features of Gentiana tianschanica Rupr. Populations to Environmental Factors in Kazakhstan
    (2024-01-01)
    Бекзат Тыныбеков
    ;
    Moldir Imanaliyeva
    ;
    Askhat Kuatbayev
    ;
    Gulmira Satybaldiyeva
    ;
    Elmira Boribay
    The study investigates the current state, floristic composition, and ecological characteristics of Gentiana tianschanica populations in the Ile-Alatau region, part of the Ile-Alatau National Park, Kazakhstan.Gentiana L., an ancient boreal genus, includes 31 species in Kazakhstan, such as the endemic Gentiana dschungarica.Known for medicinal uses, especially for gastrointestinal and urogenital disorders, interest in gentians has risen for ornamental and pharmacological applications.Nine natural populations of G. tianschanica were studied in diverse ecological and phytocoenotic conditions of the Ile-Alatau mountains.Soil analyses revealed significant differences in the physicochemical properties of the species' habitats.In the Kimasar Gorge, mountain-meadow chestnut soils with a light loamy texture were observed, while the Big Almaty Gorge featured dark chestnut soils rich in humus (7.36-18.78%)and nutrients such as nitrogen (120.4-140.0mg/kg), phosphorus (58-98 mg/kg), and potassium (470-1000 mg/kg).These findings emphasize the species 'adaptation to varying altitudinal and climatic zones.Phytochemical analysis showed G. tianschanica is rich in bioactive compounds, including phenolics, bitter glycosides, flavonoids, and alkaloids.Total phenol content reached 1567.17-9008.20mg of gallic acid/100 g, with the highest levels in leaves.Flavonoids (up to 1358.25 mg catechin/100 g) and vitamin C (up to 244.7 mg/100 g) were significant.Syringic acid (1685.8mg/100 g), quercetin (317.4 mg/100 g), and chlorogenic acid (237.5 mg/100 g) highlighted antioxidant and antiinflammatory potential.The antioxidant activity, particularly in leaves, reached 530.30 mg Trolox/100 g.Anthropogenic threats, including overgrazing and habitat disturbance, have led to declining populations, necessitating conservation strategies like habitat monitoring, protective regimes, and sustainable medicinal plant use.This study underscores the ecological and phytochemical significance of G. tianschanica, which is vital for biodiversity conservation and pharmaceutical development.
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    Soil morphological and chemical characteristics in the habitats of the rare, endemic plant Spiraeanthus schrenkianus in Karatau Mountains, Kazakhstan
    (Instituto Internacional de Ecologia (Brazil), 2025-01-01)
    A Muratbayeva
    ;
    Akmaral Nurmahanova
    ;
    Канат Кулымбет
    ;
    A. T. Myltykbayeva
    ;
    Aigul Аkhmetova
    BACKGROUND: The article presents the results of the study of ecological characteristics of soils of three populations on the territory of Karatau. The populations were located in different geographical points with differences in soil types, depth of horizons and content of chemical elements. The study evaluated the main soil parameters including humus content, pH, CO2, macro- and microelements, and salinity level. It was found that population-1 (mountain gray-brown soils) was characterized by the highest content of humus and mobile nitrogen, indicating better availability of nutrients to plants. population-2 (mountain southern serozems) has higher potassium content, which is favourable for plant growth. population-3 (mountain gray-brown soils) showed the lowest content of mobile phosphorus and copper compared to other populations. Analysis of heavy metal concentrations showed that zinc exceeded the maximum permissible concentration only in population-2. At the same time, soil salinization at all three sites remains at a low level and does not pose a threat to the ecosystem. These findings are ecologically significant as they reveal the critical role of soil fertility and contamination in supporting the distribution and survival of the rare endemic species Spiraeanthus schrenkianus. These results provide new information for assessing the fertility and sustainability of land resources.
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