Dissolved organic carbon and major and trace elements in peat porewater of sporadic

Mobilization of dissolved organic carbon (DOC) and related trace elements (TEs) from the frozen peat to surface waters in the permafrost zone is expected to enhance under ongoing permafrost thaw and active layer thickness (ALT) deepening in high-latitude regions. The interstitial soil solutions are...

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Bibliographic Details
Published in:Biogeosciences
Main Authors: Raudina, Tatiana V., Lim, A. G., Kritskov, I. V., Shirokova, Liudmila S., Istigechev, G. I., Kuzmina, D. M., Kulizhsky, Sergey P., Vorobyev, Sergey N. (биолог), Pokrovsky, Oleg S., Loiko, Sergey V.
Format: Article in Journal/Newspaper
Language:English
Published: 2017
Subjects:
Западная Сибирь
зоны вечной мерзлоты
растворенный органический углерод
интерстициальные почвенные растворы
торфяники
Active layer thickness
permafrost
Siberia
Online Access:https://doi.org/10.5194/bg-14-3561-2017
http://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000616152
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Summary:Mobilization of dissolved organic carbon (DOC) and related trace elements (TEs) from the frozen peat to surface waters in the permafrost zone is expected to enhance under ongoing permafrost thaw and active layer thickness (ALT) deepening in high-latitude regions. The interstitial soil solutions are efficient tracers of ongoing bio-geochemical processes in the critical zone and can help to decipher the intensity of carbon and metals migration from the soil to the rivers and further to the ocean. To this end we collected across a 640 km latitudinal transect of the sporadic to continuous permafrost zone of western Siberia peatlands soil porewaters from 30 cm depth using suction cups and we analyzed DOC dissolved inorganic carbon (DIC) and 40 major elements and TEs in 0.45 µm filtered fraction of 80 soil porewaters.

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