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Microbial Production and Carbon Dioxide Emission by Soils of the Chashnikovo Carbon Polygon with Various Potential for Organic Matter Mineralizationстатья
- Авторы: Derevenets E.N., Kulachkova S.A., Manakova O.I., Meshalkina Yu L., Sorokin A.S.
- Журнал: Moscow University Soil Science Bulletin
- Том: 79
- Номер: 4
- Год издания: 2024
- Издательство: Allerton Press Inc.
- Местоположение издательства: United States
- Первая страница: 509
- Последняя страница: 523
- Оригинальные версии: Микробная продукция и эмиссия диоксида углерода почвами карбонового полигона «Чашниково» с различным потенциалом минерализации органического вещества
- DOI: 10.3103/S0147687424700480
- Аннотация: Microbial production and CO2 emissions were studied in sod-podzolic soils of the Chashnikovocarbon polygon (Moscow oblast) of Moscow State University at the peak of vegetation activity. The objectswere monitoring sites in two natural ecosystems (secondary spruce forest and upland forb meadow) and twoagroecosystems (perennial grasses and bare fallow). The soils differed in the carbon pools of organic matter(Corg), microbial carbon (Cmic), and potentially mineralizable carbon (Cpm). The highest values of microbialindicators and carbon content were observed in the upper 30 cm, with a maximum in the upper 10 cm.Corg stocks in the 0- to 30-cm layer were 1.1–1.3 times higher in agrosoils (72.7–75.6 t ha–1) than in natural soils (59.4–65.0 t ha–1) due to the difference in soil density. The contribution of the Cmic stock to the Corg pool in meadow soils and agrosoils covered by perennial grasses (1.8 and 1.4%) was higher than in forest soils and soils covered by bare fallow. The Cpm pool in natural soils (1.34 and 0.97 t ha–1 for the 0- to 10-cm layer) was 1.3–2.3 times higher than that in agrosoils; however, the intensity of organic matter mineralization in agrosoils was 1.4–2.9 times lower than in soils of natural ecosystems. For ecosystems with similar vegetation, theeffect of Cpm stocks on the value of microbial CO2 production was shown; its proportional increase was noted.The maximum potential microbial production of CO2 (4.8 gC m–2 day–1 for the 0- to 10-cm layer and10.5 gC m–2 day–1 for the 0- to 30-cm layer), Cmic stock (0.50 t ha–1), as well as CO2 emission (11.09 ± 0.29 gC m–2 day–1), were characteristic of the upland meadow soils. In other biocenoses, microbial production of CO2 was approximately two times lower. Since CO2 emission, in addition to microbial respiration, was also caused by the respiration of plant roots, its minimum values were observed for agrosoils under bare fallow (5.01 ± 1.43 gC m–2 day–1). The CO2 emission by forest soils and agrosoils under perennial grasses was statistically insignificantly lower compared to the meadow.
- Добавил в систему: Деревенец Елизавета Николаевна
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|---|---|---|---|---|
| 2. | Заключение о публиковании | Заключение_Деревенец_Вестник_.pdf | 365,4 КБ | 22 октября 2024 [lizaderevenets] |