Carbon Dioxide in Soil and Surface Waters in the North of Western Siberia: Methodological Approach and Quantitative Characteristics

Goncharova, O.Y.; Timofeeva, M.V.; Matyshak, G.V.; Isaeva, A.V.

Авторы: Goncharova O.Yu, Timofeeva M.V., Matyshak G.V., Isaeva A.V.
Журнал: Eurasian Soil Science
Том: 57
Номер: 2
Год издания: 2024
Издательство: Maik Nauka/Interperiodica Publishing
Местоположение издательства: Russian Federation
Первая страница: 199
Последняя страница: 209
DOI: 10.1134/s1064229323602755
Аннотация: Dissolved inorganic carbon is an essential component of the carbon cycle, especially in the northern regions; however, its loss through water bodies is still rarely included in regional carbon models. The tasks of the work comprise a detailed coverage of the methodological approach of “headspace equilibration” for assessing the concentration of dissolved CO2 in soil and surface waters and estimation of the CO2 concentration range in waters of different geneses in the landscapes of northern Western Siberia. The performed methodological work has allowed a headspace equilibration protocol for measuring the CO2 concentration in waters to be elaborated and described with detailed calculations. The CO2 concentration in soil (suprapermafrost) and surface waters (river, bog, lake, etc.) ranges from 13 to 2983 μmol/L (274 to 57000 μatm), and the vast majority of objects are supersaturated with CO2 relative to the atmosphere. The maximum concentrations are characteristic of suprapermafrost soil and bog waters, and the minimum concentrations are in the waters of aquatic ecosystems (thermokarst and forest lakes). A high variability of CO2 concentrations in waters necessitates a large number of measurements to provide adequate estimates.
Добавил в систему: Гончарова Ольга Юрьевна

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Carbon Dioxide in Soil and Surface Waters in the North of Western Siberia: Methodological Approach and Quantitative Characteristicsстатья

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