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Интеллектуальная Система Тематического Исследования НАукометрических данных |
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Polymer-Based Soil Ameliorants in the Conditions of Model Polymetallic Contamination of Agro-Sod-Podzolic Soilстатья
- Авторы: Terekhova V.A., Yakimenko O.S., Sergeeva Yu D., Panova I.G., Kulachkova S.A., Derevenets E.N., Kalero V.K., Volkova V.D., Novoskoltseva O.A.
- Журнал: Moscow University Soil Science Bulletin
- Том: 80
- Номер: 2
- Год издания: 2025
- Издательство: Allerton Press Inc.
- Местоположение издательства: United States
- Первая страница: 190
- Последняя страница: 200
- DOI: 10.3103/S0147687425700061
- Аннотация: Abstract—The study characterizes the effect of polymer soil ameliorants on changes in toxicity of agro-sodpodzolic soil contaminated with a complex of heavy metals (HMs). Hydrolyzed polyacrylonitrile (HPAN) and a binary composite of HPAN + potassium humate (HPAN + PH, 1 : 10) were applied at a rate of 0.2% (on a dry matter basis) to soils with model contamination with salts of copper, zinc, lead, and cadmium at levels 2, 4, and 6 of tentative permissible concentrations (TPCs). The effect of polymer formulations on reduction of heavy metals toxicity manifested itself to varying degrees depending on soil contamination level. The bacterial standard bioluminescent bioassay and phytotesting on the seedlings of higher plants Sinapis alba L. showed a positive effect of HPAN + PH composite at the highest contamination level, 6 HM TPC. Bioindication of the functional state of soil microbiota showed that ameliorants lowered the microbial metabolic quotient (to the permissible level of 2 μg C–CO2 mg−1 Cmic h−1), which is an important evidence of their positive effect on the soil microbial community. Laboratory biotesting of uncontaminated soil, as well as at relatively low levels of HM contamination, revealed the toxicity of the aqueous extract of samples with ameliorants (root growth delay and decrease in bioluminescence in test-bacteria). The need is emphasized foradditional analysis before recommending the use of the ameliorants for detoxification of contaminated soils considering the results obtained in the study.Keywords: bioassay, ecotoxicity, Sinapis alba, remediation, heavy metals, hydrolyzed polyacrylonitrile, potassium humateDOI: 10.3103/S0147687425700061
- Добавил в систему: Терехова Вера Александровна
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|---|---|---|---|---|
| 1. | Полный текст | Terekhoba_et_al.__BSoilMGU_2025_2_р.190_200.pdf | 882,4 КБ | 18 июня 2025 [vat] |