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Carbon dioxide uptake on abandoned arable land in Moscow region of Russiaстатья
- Авторы: Romanovskaya A., Smirnov N., Korotkov V., Karaban’ R., Trunov A.
- Журнал: Journal of Science, Technology and Environment
- Том: 5
- Номер: 1
- Год издания: 2015
- Первая страница: 1
- Последняя страница: 12
- Аннотация: The dynamics of organic carbon in soils of abandoned arable land in the Moscow region was assessed. Soil samples collected on abandoned lands of different ages, arable and virgin soil (forest biocenoses older than 50 years) in several districts. Two sampling cycles were done in 5 years. In the gray forest soils within the 15 years after the cessation of ploughing the carbon accumulation was up to 0.9% C (about 32.0 t C/ha). The soddy-podzolic loamy soil during the same period had accumulated less than 0.3% C (8.9 t C/ha), and soddy-podzolic sandy loam, on average, gained about 0.6% C (17.8 t C/ha). The first stage of regrowth on abandoned land within the same climatic region may have very high or very low productivity of biomass depending on the composition of the dominant species. In soils of young abandoned lands (up to 5 years) the relatively higher or, on the contrary, low organic carbon content compared with arable soils and old abandoned lands has been detected. In average abandoned lands in Moscow region accumulated annually 0.03±0.04 %C (0.8±1.1 t C/ha per year) for ages from 5 to 10 years, 0.09±0.015 %C (2.4±0.4 t C/ha per year) for ages from 8 to 15 years and 0.06±0.01%C (1.7±0.4 t C/ha per year) for ages from 15 to 20 years. The annual soil carbon losses due to conversion of abandoned land back to cropland were found as high as 2.4 t C/ha per year. Cumulative sequestration of the atmospheric CO2 on the territory of abandoned land in Moscow regions estimated 25080 Gg CO2 (6 840 Gg C) for 1990-2013.
- Добавил в систему: Коротков Владимир Николаевич
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|---|---|---|---|---|
| 1. | Полный текст | Romanovskaya_et_al_2015-3000258-1000332-pub.pdf | 455,4 КБ | 30 ноября 2015 [VladimirKorotkov] |