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

• 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

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.