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5 International Scientific Online Conference   DOI: https://doi.org/10.15414/2021.9788055224015

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              PERSPECTIVES AND USING WOODY ARTIFICIAL PLANTATIONS FOR HARMONIZATION
                                  OF THE NATURAL ENVIRONMENT IN KRYVYI RIH
                                             Maxim Kvitko, Vasyl Savosko
                 Kryvyi Rih State Pedagogical University, Kryvyi Rih, Ukraine; E-mail.: kvitko.max@gmail.com

                  There is increasing attention of scientists to the social aspects of forest use in modern
             cities, as well as the role of forests in the green economy.
                  The  research  aimed  to  study  artificial  woody  plantations  as  a  significant  factor  in
             improving  the  ecological  environment  for  their  further  use,  adhering  to  the  paradigm  of
             sustainable development in the Kryvyi Rih mining and metallurgical region.
                  During  2015–2020,  we  studied  the  natural  forest  ecosystems  and  the  artificial  forest
            plantations,  which  are  located  in  contrast  to  environmental  conditions.  A  forest  woodland
            inventory  was  made  a  random  sampling  scheme.  The  34  research  plots  (25*25  m)  were
            established in natural forest ecosystems and artificial woody plantations.
                  It was established that at Natural forest ecosystems of the Gurivsky forest the values of
            stand density varied from 1100 to 1300 trees ha , stem heights were 17–19 m, stem diameters
                                                              -1
            were from 19 to 21 cm, stand basal area was from 44 to 48 m ha , stand volume was from 500
                                                                              -1
                                                                          2
            to 550 m  ha . It should be noted, that the vitality of the stand was very high and indicated to
                     3
                          -1
            healthy forests of these ecosystems. In general, the characteristics of the Gurivsky forest were
            typical for the floodplain forests of Ukraine.
                  Instead, the values of stand density in plantations in areas with the most environmentally
            unfavorable areas varied. The most ecologically polluted territory includes forest protection
            zones of PJSC "ArcelorMittal Kryvyi Rih" and urban protected forests (city protection forests
            (Lisove and Sotsmisto forest tracts) are located in an ecologically unfavorable zone. These tree
            plantations develop mainly on relatively fertile soils with a low level of moisture and a high level
            of air pollution by gas and dust.
                  It was established that at these woody plantations the values of stand density varied from
            1400 to 1500 trees ha , stem heights varied from 10 to 12 m, stem diameters varied from 14 to
                                   -1
            16 cm, stand basal area varied from 26 to 32 m ha  and stand volume varied from 150 to 250
                                                                -1
                                                             2
            trees m  ha . These values are very different from the control (F>Fcritical, p<0.05).
                        -1
                    3
                  The viability of the stand with the most unfavorable environmental conditions was very
            low and indicated a partially healthy condition of these stands.
                  In our opinion, the biogeochemical parameters of each seasonal fallen tree leaves can be
             considered one of the promising markers that determine the viability, or in other words, the
             health of tree species, and predict the development of artificial woody plantations.
            Keywords: forest plantations, analysis of the forest condition, woody plants of Kryvyi Rih district.


















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