Зміна ґрунтових параметрів у свіжому дубово-сосновому суборі під впливом напіввільного утримання мисливських тварин в умовах Центрального Полісся
2021
The research was conducted in fresh oak-coniferous forest conditions (V2-dS) on the territory of 2 semi-free maintenance enclosures in hunting farms of Baranivske Hunting Forestry State Enterprise (Yavnenske Forestry) and KSK Club LLC (Potashnyanske Forestry of Radomyshl State Forestry Enterprise) in Central Polissya, based on 24 full geobotanic descriptions, within 4 biogeocenoses. Comparison of scores of soil parameters was performed on undisturbed forest trial plots and disturbed ones under influence of semi-free maintenance of ungulates. The results of research have shown that the mean score of soil humidity was 11.93±0.12 on the control plots, and in enclosures – 11.89±0.11, difference in reported mean values wasnt essential on 95 % confidence level. Variability of soil humidity on control plots was characterized by the mean score 5.36±0.11, increasing in enclosures to 5.94±0.14 score (Ffact. = 10.58 > F0.95 = 4.30). The mean score of soil acidity on control plots was 5.80±0.12, increasing in enclosures to 6.49±0.11 (Ffact. = 17.36 > F0.95 = 4.30) which probably was determined by bringing of salts of natrium and potassium to the soil with ungulates urine. The mean score of total salt content in the soil on the control plots equalled 5.33±0.01 whereas in enclosures the index increase was fixed up to 5.78±0.12 mainly due to bringing of salts to the soil with ungulates excrement. Mentioned above differences of the mean values were essential on 5 % significance level (Ffact. = 9.14 > F0.95 = 4.30). Quantity of calcium and magnesium in the soils of control plots and enclosures was characterized by the mean score 5.56±0.12 and 5.97±0.11 respectively, an essential increase of their content took place in enclosures (Ffact. = 6.29 > F0.95 = 4.30). An increase of content of mineral nitrogen was found in the soils ranging from 4.16±0.01 scores on control plots to 4.74±0.11 scores in enclosure maintenance of ungulates (Ffact. = 27.33 >> F0.95 = 4.30), which testifies about an essential bringing of nitrous substances to the soil with animals urine. The mean scores of soil aeration were equalled 6.38±0.08 and 6.46±0.08 respectively; these values didnt differ essentially on 5 % significance level (Ffact. = 0.46 << F0.95 = 4.30) on the control plots and plots of semi-free maintenance of ungulates. The research conducted can become the basis of further investigation of the influence of semi-free maintenance of game animals on soil parameters in certain forest ecological conditions.
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