Next Article in Journal
Quo Vadis Lakes Azuei and Enriquillo: A Future Outlook for Two of the Caribbean Basin’s Largest Lakes
Previous Article in Journal
The Role of Hydrodynamics on the Sustainable Mussels’ Culture Activity. The Case of the Chalastra Basin (NW Gulf of Thessaloniki)
Previous Article in Special Issue
Groundwater-Surface Water Interaction in the Nera River Basin (Central Italy): New Insights after the 2016 Seismic Sequence
Article

Hydrological Connectivity in a Permafrost Tundra Landscape near Vorkuta, North-European Arctic Russia

1
P.I. Melnikov Permafrost Institute, Siberian Branch, Russian Academy of Sciences, 677010 Yakutsk, Russia
2
Department of Geology, Lomonosov Moscow State University, 119991 Moscow, Russia
3
Sergeev Institute of Environmental Geoscience, 101000 Moscow, Russia
*
Author to whom correspondence should be addressed.
Academic Editors: Il-Moon Chung, Sun Woo Chang, Yeonsang Hwang and Yeonjoo Kim
Hydrology 2021, 8(3), 106; https://doi.org/10.3390/hydrology8030106
Received: 19 June 2021 / Revised: 14 July 2021 / Accepted: 17 July 2021 / Published: 22 July 2021
(This article belongs to the Special Issue Integrated Surface Water and Groundwater Analysis)
Hydrochemical and geophysical data collected during a hydrological survey in September 2017, reveal patterns of small-scale hydrological connectivity in a small water track catchment in the north-European Arctic. The stable isotopic composition of water in different compartments was used as a tracer of hydrological processes and connectivity at the water track catchment scale. Elevated tundra patches underlain by sandy loams were disconnected from the stream and stored precipitation water from previous months in saturated soil horizons with low hydraulic conductivity. At the catchment surface and in the water track thalweg, some circular hollows, from 0.2 to 0.4 m in diameter, acted as evaporative basins with low deuterium excess (d-excess) values, from 2‰ to 4‰. Observed evaporative loss suggests that these hollows were disconnected from the surface and shallow subsurface runoff. Other hollows were connected to shallow subsurface runoff, yielding d-excess values between 12‰ and 14‰, close to summer precipitation. ‘Connected’ hollows yielded a 50% higher dissolved organic carbon (DOC) content, 17.5 ± 5.3 mg/L, than the ‘disconnected’ hollows, 11.8 ± 1.7 mg/L. Permafrost distribution across the landscape is continuous but highly variable. Open taliks exist under fens and hummocky depressions, as revealed by electric resistivity tomography surveys. Isotopic evidence supports upward subpermafrost groundwater migration through open taliks under water tracks and fens/bogs/depressions and its supply to streams via shallow subsurface compartment. Temporal variability of isotopic composition and DOC in water track and a major river system, the Vorkuta River, evidence the widespread occurrence of the described processes in the large river basin. Water tracks effectively drain the tundra terrain and maintain xeric vegetation over the elevated intertrack tundra patches. View Full-Text
Keywords: permafrost hydrology; Russian Arctic; water tracks; hydrological connectivity; stable water isotopes; dissolved organic carbon; electrical resistivity tomography; taliks permafrost hydrology; Russian Arctic; water tracks; hydrological connectivity; stable water isotopes; dissolved organic carbon; electrical resistivity tomography; taliks
Show Figures

Figure 1

MDPI and ACS Style

Tananaev, N.; Isaev, V.; Sergeev, D.; Kotov, P.; Komarov, O. Hydrological Connectivity in a Permafrost Tundra Landscape near Vorkuta, North-European Arctic Russia. Hydrology 2021, 8, 106. https://doi.org/10.3390/hydrology8030106

AMA Style

Tananaev N, Isaev V, Sergeev D, Kotov P, Komarov O. Hydrological Connectivity in a Permafrost Tundra Landscape near Vorkuta, North-European Arctic Russia. Hydrology. 2021; 8(3):106. https://doi.org/10.3390/hydrology8030106

Chicago/Turabian Style

Tananaev, Nikita, Vladislav Isaev, Dmitry Sergeev, Pavel Kotov, and Oleg Komarov. 2021. "Hydrological Connectivity in a Permafrost Tundra Landscape near Vorkuta, North-European Arctic Russia" Hydrology 8, no. 3: 106. https://doi.org/10.3390/hydrology8030106

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop