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Mineralization of Organic Matter in Oil-Polluted and Remediated Oil-Polluted Soils in the Middle Taiga Zone of West Siberia under Laboratory Conditionsстатья
Дата последнего поиска статьи во внешних источниках: 27 октября 2021 г.
- Авторы: Trofimov S.Y., Arzamazova A.V., Kinzhaev R.R., Khamutovskaia A.V., Karpykhin M.M.
- Журнал: Moscow University Soil Science Bulletin
- Том: 76
- Номер: 2
- Год издания: 2021
- Издательство: Allerton Press Inc.
- Местоположение издательства: United States
- Первая страница: 89
- Последняя страница: 93
- Оригинальные версии: Минерализация органического вещества нефтезагрязненных и рекультивированных почв среднего Приобья в лабораторных условиях
- DOI: 10.3103/S0147687421020071
- Аннотация: Abstract—Mineralization rates of soil organic matter (SOM) decomposition in nonremediated and remediated oil-polluted soils and background soils from the main types of West Siberian middle-taiga ecosystems have been measured in laboratory experiments. The rates of SOM mineralization were measured by alkali absorption of CO2 released from wet soil samples at 20C (basal respiration). Taking into account the linear character of the cumulative curves of CO2 release, the rates of SOM mineralization were estimated using the mineralization index K1, equal to the annual amount of CO2 released per 1 g dry soil. The K1 values varied from 0.123 to 1.578 mg CO2/g/day. The highest value was recorded in the background forest soil, while the lowest value in the oil-polluted peat soil with extremely high oil content (544 g/kg). The K1 values were negativelycorrelated with oil content (K = –0.57). The SOM mineralization rate in remediated oil-polluted peatsoils varied from 0.31 to 0.85 mg CO2/g/day.
- Добавил в систему: Арзамазова Анна Вадимовна