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    Wyświetlanie 1-2 z 2
    Tytuł:
    Ecological Analysis of the Current State of Forest Resources in Forest Steppe of Ukraine
    Autorzy:
    Beregniak, Evgeniy
    Beregniak, Mykhailo
    Myronycheva, Olena
    Balabak, Alla
    Belava, Victoriia
    Boroday, Vira
    Nedilska, Uliana
    Hudyma, Volodymyr
    Kucher, Larisa
    Voitsekhivskyi, Volodymyr
    Powiązania:
    https://bibliotekanauki.pl/articles/2202328.pdf
    Data publikacji:
    2023
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    forest resources
    conifer
    nature reserve fund
    deforestation
    forest fire
    tree disease
    red book species
    fungi
    Opis:
    Forests perform essential ecological functions - water protection, sanitation, health, recreation, and aesthetics. The research aimed to substantiate the ecological and economic importance of forest resources in the Kyiv region and analyse their rational use and protection. The article shows that the Kyiv region belongs to the regions with an average level of forest cover – 592.8 thousand hectares or 22.2%. The level of forest cover is uneven in the area of the Kyiv Forest zone. It is 44%, and in the area of the Forest-Steppe, it is much lower and decreases from north to south. The use of forest resources in the Kyiv region in 2019 amounted to harvesting liquid wood of 999.5 thousand m2, and deforestation was carried out on 75.5 thousand hectares. The region’s volume of forestry works and services amounted to 8,9 million dollars, and the wood stock makes 90805,9 thousand m2. Emphasis is placed on the importance of protecting the Red Book species of plants and fungi that grow in the forests of the Kyiv region. Examples of harmful economic activity in the areas belonging to the nature reserve fund and large-scale fires in April 2020, which covered more than 3.5 thousand hectares of forests in the region and caused damage to forest fauna and flora. The studied region’s positive environmental and economic factors have been admitted by planting trees on an area of 2151 hectares and sowing seeds of forest species on an area of 67 hectares in 2020.
    Źródło:
    Journal of Ecological Engineering; 2023, 24, 1; 87--96
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Evaluation of Hyper-Tolerance of Aquatic Plants to Metal Nanoparticles
    Autorzy:
    Оlkhovych, Olga
    Taran, Nataliia
    Hrechishkina, Svitlana
    Voitsekhivska, Olena
    Panuta, Olga
    Voitsekhivskyi, Volodymyr
    Belava, Victoriia
    Powiązania:
    https://bibliotekanauki.pl/articles/2173318.pdf
    Data publikacji:
    2022
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    metal nanoparticles
    aquatic plant
    amino acids
    protein
    phytoremediation
    Opis:
    The estimation of the protein content and amino acid composition under the influence of metal nanoparticles (Mn, Cu, Zn, Ag) for seven species of aquatic macrophytes: Limnobium laevigatum (Humb. & Bonpl.ExWilld.), Pistia stratiotes L., Salvinia natans L., Elodea canadensis Michx., Najas guadelupensis (Spreng.) Magnus, Vallisneria spiralis L. and Riccia fluitans L. was conducted. The plants were exposed during 7 days on the experimental solutions of metal nanoparticles at the rate of 1 g of plant per 100 ml of the mixture of stock colloidal solutions of metal nanoparticles (Mn – 0.75 mg/l, Cu – 0.37 mg/l, Zn – 0.44 mg/l, Ag+, Ag2O – 0.75 mg/l) diluted 200 times. In the five investigated species, reduction of the protein content was observed. However, this indicator remained stable only in P. stratiotes (52 mg/ml) and, conversely, increased in V. spiralis (46 mg/ml to 51 mg/ml). The content of the studied amino acids in N. guadelupensis decreased by 46% (from 112.05 mmol/g to 60.15 mmol/g), in R. fluitans – by 44% (from 104.06 mmol/g to 58.25 mmol/g), in S. natans – by 23% (from 90.08 mmol/g to 69.59 mmol/g), in E. canadensis – by 10% (from 143.92 mmol/g to 129.4 mmol/g), and in P. stratiotes as well as in L. laevigatum – by 8% (from 210.65 mmol /g to 193.77 mmol/g and with 155.0 mmol/g to 142.60 mmol/g), but in V. spiralis, on the contrary, increased by 7% (from 91.31 mmol/g to 97.59 mmol/g). Changes in the composition and content of amino acids for each species of aquatic plant were analyzed. It was suggested that the studied plants, which belong to different families, have different defense mechanisms, according to which the amino acid composition of plants varies.
    Źródło:
    Journal of Ecological Engineering; 2022, 23, 8; 249--259
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-2 z 2

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