| Autor: |
Daoud, Rama Mohammed, Kolesnikov, Sergei I., Kuzina, Anna A., Kazeev, Kamil Sh., Dang Hung Cuong, Nguyen Dang Hoi |
| Předmět: |
|
| Zdroj: |
Biogeosystem Technique; Dec2020, Vol. 7 Issue 2, p55-65, 11p |
| Abstrakt: |
Arid ecosystems occupy a significant part of the world's ecosystems and play important role in the biodiversity and stability of natural ecosystems. At the same time, Soils of arid ecosystems significantly differ in their ecological and genetic properties, and, accordingly, in their resistance to chemical pollution. It has been established that the soil pollution of arid ecosystems by gasoline in Russia leads to decrease the biological activity: Inhibition of enzyme activity (activity of catalase and dehydrogenases), decrease the general number of bacteria in the soil, decrease the galore of bacteria of genus Azotobacter in the soil, phytotoxic properties, cellulolytic ability. In most cases, there is a significant decrease in all the studied parameters. The degree of decrease depends on the concentration of gasoline in the soil. The obtained sequence of arid soils resistance of the south of Russia to gasoline pollution: ordinary chernozem (haplic chernozem loamic) > chestnuts soils (haplic kastanozems chromic)> dark chestnuts soils (haplic kastanozems chromic) = light chestnuts soils (haplic kastanozems chromic) = sandy soils (calcaric arenosols) = brown semi - desert soils (haplic calcisols) > solonetzes medow (gleyic solonetz albic) > shor solonchaks (puffic solonchaks aridic). Used in the study indicators of the soil biological state can be recommended for forecasting, assessment and control of chemical contamination of arid soils. Based on the assessment of soil ecological functions violation in oil industry, the quantitative regional standards landmarks were developed of the maximum permissible gasoline concentrations (MPC) in arid soil. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
|
