Carbon Dioxide in Soil, Ground and Surface Waters of the Northern Regions: Role, Sources, Test Methods (a Review)

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

Авторы: Goncharova O.Yu, Timofeeva M.V., Matyshak G.V.
Журнал: Eurasian Soil Science
Том: 56
Номер: 3
Год издания: 2023
Издательство: Maik Nauka/Interperiodica Publishing
Местоположение издательства: Russian Federation
Первая страница: 278
Последняя страница: 293
Оригинальные версии: Диоксид углерода в почвенных, грунтовых и поверхностных водах арктических и бореальных регионов: роль, источники, методы определения (обзор)
DOI: 10.1134/s1064229322602414
Аннотация: Modern research proves the need to include waterbodies in regional and global models of carbonexchange. The concentration of carbon dioxide in surface waters is generally higher than that upon the equilibrium state with a partial atmospheric pressure of 400 μatm. The study of the functioning and regional role of aquatic systems, especially in regard to inorganic carbon dynamics, is insufficient, especially in circumboreal regions. The review highlights the theoretical foundations and relevance of studies of dissolved carbon dioxide; methodological approaches to assessing this indicator, as well as the role of dissolved CO2 in natural waters of boreal and arctic regions. Soil organic matter and dissolved carbon dioxide are the main sources of CO2 in surface waters, but this contribution has not yet been quantified. This is due to the underestimation of the abiotic aspects of soil gas exchange, the absolute predominance of studies of gas exchange at the soil/atmosphere interface without taking into account the interaction with groundwater, and methodological difficulties in measuring gas concentrations in ground and surface waters. Instrumental measurement methods are not standardized, and the calculated values have very high systematic and analytical errors. The conclusion points to the need to study the hydrological continuum: from a source (terrestrial ecosystems) to large rivers and lakes, with particular attention to the incorporation of CO2 from groundwater into the carbon budget of the entire watershed.
Добавил в систему: Гончарова Ольга Юрьевна

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Carbon Dioxide in Soil, Ground and Surface Waters of the Northern Regions: Role, Sources, Test Methods (a Review)статья

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