MONITORING EVALUATION OF URBANOZEMES OF SMALL CITIES OF THE BRYANSK REGION
For the first time, a monitoring base has been created for the Bryansk region (Non-Black Earth Region of the Russian Federation) on the ecological, chemical and algological indicators of soils in small cities, which differ in population and the development of industrial production. Routing methods,...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Science and Innovation Center Publishing House
2019-03-01
|
| Series: | Siberian Journal of Life Sciences and Agriculture |
| Subjects: | |
| Online Access: | http://journal-s.org/index.php/vmno/article/view/12416 |
| Summary: | For the first time, a monitoring base has been created for the Bryansk region (Non-Black Earth Region of the Russian Federation) on the ecological, chemical and algological indicators of soils in small cities, which differ in population and the development of industrial production. Routing methods, methods of chemical and algological soil research were used. The general condition of urban soils was evaluated by the Zс index.
In the soils of small towns of the old-developed region – the cities of Karachev, Novozybkov, Unecha, Fokino – the maximum gross content is recorded for lead, copper and zinc. The values of the Zc index vary from 10 to 56, which indicates the presence of zones with an acceptable level of chemical pollution, moderately – dangerous, highly dangerous pollution. In the studied soil samples, the content of heavy metals reveals the predominance of an acceptable and moderately hazardous level of pollution. In the city of Fokino, zones with high hazard and moderate pollution by the Zc index prevail, which indicates a significant effect of large chemical production on soils in a small industrial city.
For small towns of the Bryansk region, a soil-algological base was compiled for the first time, as a reflection of the conditions existing in the upper soil horizons. For four small towns, 29 species of soil algae from five departments were found. In anthropogenic habitats, the Cyanophyta divisions (order of Nostocales, Oscillatoriales), the Chlorophyta division (order of Chlorococcales), and the low species representation of the divisions of Xantophyta, Bacillariophyta are especially diverse. As bioindicators, dominants in the soils of the first and second groups (Zc less than 16, from 16 to 32) Cylindrospermum muscicola, Nostoc commune, Phormidium autumnale can be considered. In the most polluted soils (Zc from 32 to 128), the species Chlorococcum sp., Microcoleus vaginatus, Euglena viridis, Nostoc commune predominate. The results obtained are the basis of biomonitoring and eco-analytical studies of urban soils of small towns. |
|---|---|
| ISSN: | 2658-6649 2658-6657 |