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Analysis of the Effect of Moisture Content on the Spatial Variability of Carbon Stock in Forest Soils of European Russiaстатья
- Авторы: Ryzhova I.M., Podvezennaya M.A., Kirillova N.P.
- Журнал: Moscow University Soil Science Bulletin
- Том: 77
- Номер: 2
- Год издания: 2022
- Издательство: Allerton Press Inc.
- Местоположение издательства: United States
- Первая страница: 67
- Последняя страница: 73
- DOI: 10.3103/s0147687422020065
- Аннотация: The moisture factor is of particular importance when assessing carbon stocks in the soils of the forest zone, which accounts for 70% of the area of all semihydromorphic soils in Russia According to the literature data, the organic carbon reserves in semihydromorphic forest soils are several times higher than in automorphic ones. To refine regional estimates of organic carbon stocks in soils in the forest zone of Russia, information is needed on the variability of carbon stocks in forest soils and its dependence on moisture conditions. In this paper, we discuss the results of a comparative statistical analysis of the variability of organic carbon stocks in automorphic and semihydromorphic forest soils. To estimate the stocks of soil carbon and calculate the quantitative indicators of their variability, we used information from two sources: the database «Organic carbon of soils of forest ecosystems in the European territory of Russia» and the soil-geographical database of Russia. The information was collected into a single array, which includes the characteristics of 289 soil profiles of forest ecosystems. Of these, 201 sections characterize automorphic soils and 88 sections characterize semihydromorphic soils. The results of statistical analysis showed that organic carbon stocks (including litter) in semihydromorphic soils are characterized by higher variability, as evidenced by a larger range of changes, interquartile range, and higher standard deviations. The organogenic horizon makes the greatest contribution to the total variability of carbon stocks in soils of forest ecosystems under increased moisture. For it, the values of the standard deviation in semihydromorphic soils are 7 times higher than in automorphic soils, while the differences for a meter thick soil are fourfold.
- Добавил в систему: Подвезенная Марина Александровна