Year 2024, Volume 9, Issue 2
| Year : | 2024 |
| Volume : | 9 |
| Issue : | 2 |
| Authors : | Andrey BEREZOVSKIY, Dmitry SYSCHIKOV, Irina AGUROVA |
| Title : | UREASE ACTIVITY OF EDAPHOTOPES ON ROCK DUMPS OF COAL MINES OF THE DONETSK PEOPLE'S REPUBLIC |
| Abstract : | The aim of this work is to study the influence of phytorecultivation measures on changes of urease activity of edaphotopes at coal mine dumps of the Donetsk People's Republic. To study urease activity, monitoring sites were selected in the territories of coal mine dumps of varying degrees of degradation. To assess the influence of monospecies herbaceous phytocenoses on the course of soil-forming processes in edaphotopes of anthropogenically transformed ecosystems, seeds of Kitaibelia vitifolia Willd., Onobrychis arenaria (Kit.) DC. were sown. The research was carried out throughout 2021. Analysis of the data obtained showed that urease is confined to underlying genetic horizons, which is explained by the shortening of the soil profile and the leaching of soluble ammonium salts from the upper horizons. The study of the seasonal dynamics of the intensity of enzyme functioning showed a parabolic nature of changes in enzymatic activity with a minimum in the summer period of research and a maximum in the spring, during the period of enrichment of the soil with organic residues of the previous growing season. Sowing plants in monitoring areas had a positive effect on the processes of initial soil formation. Thus, when using Onobrychis arenaria, urease activity increased on average by 18-104% due to the fixation of atmospheric nitrogen by legumes, while in the variants of experiments using Kitaibelia vitifolia its activity increased by only 9-64%. |
| For citation : | Berezovskiy, A., Syschikov, D., Agurova, I. (2024). Urease activity of edaphotopes on rock dumps of coal mines of the Donetsk People’s Republic. AGROFOR International Journal, Volume 9. Issue No. 2. pp. 85-94. DOI: 10.7251/AGREN2402085B |
| Keywords : | dumps, enzymes, phytorecultivation, soil, technogenous ecosystems, urease |
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ISSN 2490-3434 (Printed)
ISSN 2490-3442 (Online)
ISSN 2490-3442 (Online)
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