Permafrost Boundary Shift in Western Siberia May Not Modify Dissolved Nutrient Concentrations in Rivers

Vorobyev, Sergey N.; Pokrovsky, Oleg S.; Serikova, Svetlana; Manasypov, Rinat M.; Krickov, Ivan V.; Shirokova, Liudmila S.; Lim, Artem G.; Kolesnichenko, Larisa G.; Kirpotin, Sergey N.; Karlsson, Jan

doi:10.3390/w9120985

Cited by 37 publications

(39 citation statements)

References 56 publications

(143 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…All sampling, storage, and analytical procedures were identical to those described previously for the Western Siberian Lowland (WSL) rivers (Pokrovsky, Manasypov, Loiko, Krickov, et al, ; Vorobyev et al, ). Briefly, water samples were collected from 0.5 m depth in precleaned polypropylene bottles and were immediately filtered through sterile, single use Minisart ® filter units (Sartorius, acetate cellulose filter) with a pore size of 0.45 μm.…”

Section: Study Sites and Methodsmentioning

confidence: 99%

Biogeochemistry of dissolved carbon, major, and trace elements during spring flood periods on the Ob River

Vorobyev

Pokrovsky

Kolesnichenko

et al. 2019

Hydrological Processes

Self Cite

View full text Add to dashboard Cite

Detailed knowledge of the flood period of Arctic rivers remains one of the few factors impeding rigorous prediction of the effect of climate change on carbon and related element fluxes from the land to the Arctic Ocean. In order to test the temporal and spatial variability of element concentration in the Ob River (western Siberia) water during flood period and to quantify the contribution of spring flood period to the annual element export, we sampled the main channel year round in 2014-2017 for dissolved C, major, and trace element concentrations. We revealed high stability (approximately ≤10% relative variation) of dissolved C, major, and trace element concentrations in the Ob River during spring flood period over a 1-km section of the river channel and over 3 days continuous monitoring (3-hr frequency). We identified two groups of elements with contrasting relationship to discharge: (a) DIC and soluble elements (Cl, SO 4 , Li, B, Na, Mg, Ca, P, V, Cr, Mn, As, Rb, Sr, Mo, Ba, W, and U) negatively correlated (p < 0.05) with discharge and exhibited minimal concentrations during spring flood and autumn high flow and (b) DOC and particle-reactive elements (Al, Fe, Ti, Y, Zr, Nb, Cs, REEs, Hf, Tl, Pb, and Th), some nutrients (K), and metalloids (Ge, Sb, and Te), positively correlated (p < 0.05) with discharge and showed the highest concentrations during spring flood. We attribute the decreased concentration of soluble elements with discharge to dilution by groundwater feeding and increased concentration of DOC and particle-reactive metals with discharge to leaching from surface soil, plant litter, and suspended particles. Overall, the present study provides first-order assessment of fluxes of major and trace elements in the middle course of the Ob River, reveals their high temporal and spatial stability, and characterizes the mechanism of river water chemical composition acquisition.

show abstract

Section: Study Sites and Methodsmentioning

confidence: 99%

Biogeochemistry of dissolved carbon, major, and trace elements during spring flood periods on the Ob River

Vorobyev

Pokrovsky

Kolesnichenko

et al. 2019

Hydrological Processes

Self Cite

View full text Add to dashboard Cite

show abstract

“…Further details of WSL physio-geographical settings, peat and a lithological description of the territory are provided elsewhere (Kremenetski et al, 2003;Stepanova et al, 2015;Pokrovsky et al, 2015;Raudina et al, 2017). For each biome (taiga, forest tundra and tundra) several rivers with different watershed sizes were chosen, and the sampling campaign was performed along a latitudinal transect following previous strategies for the WSL river-dissolved load (Pokrovsky et al, 2015(Pokrovsky et al, , 2016Vorobyev et al, 2017).…”

Section: Study Site and Methodsmentioning

confidence: 99%

Riverine particulate C and N generated at the permafrost thaw front: case study of western Siberian rivers across a 1700 km latitudinal transect

et al. 2018

Self Cite

View full text Add to dashboard Cite

Abstract. In contrast to numerous studies on the dynamics of dissolved (<0.45 µm) elements in permafrost-affected high-latitude rivers, very little is known of the behavior of river suspended (>0.45 µm) matter (RSM) in these regions. In order to test the effect of climate, permafrost and physio-geographical landscape parameters (bogs, forest and lake coverage of the watershed) on RSM and particulate C, N and P concentrations in river water, we sampled 33 small and medium-sized rivers (10–100 000 km2 watershed) along a 1700 km N–S transect including both permafrost-affected and permafrost-free zones of the Western Siberian Lowland (WSL). The concentrations of C and N in RSM decreased with the increase in river watershed size, illustrating (i) the importance of organic debris in small rivers which drain peatlands and (ii) the role of mineral matter from bank abrasion in larger rivers. The presence of lakes in the watershed increased C and N but decreased P concentrations in the RSM. The C:N ratio in the RSM reflected the source from the deep soil horizon rather than surface soil horizon, similar to that of other Arctic rivers. This suggests the export of peat and mineral particles through suprapermafrost flow occurring at the base of the active layer. There was a maximum of both particulate C and N concentrations and export fluxes at the beginning of permafrost appearance, in the sporadic and discontinuous zone (62–64∘ N). This presumably reflected the organic matter mobilization from newly thawed organic horizons in soils at the active latitudinal thawing front. The results suggest that a northward shift of permafrost boundaries and an increase in active layer thickness may increase particulate C and N export by WSL rivers to the Arctic Ocean by a factor of 2, while P export may remain unchanged. In contrast, within a long-term climate warming scenario, the disappearance of permafrost in the north, the drainage of lakes and transformation of bogs to forest may decrease C and N concentrations in RSM by 2 to 3 times.

show abstract

“…At the turn of the 20th and 21st centuries due to global warming and an increase in the interest in indigenous subsistence, studies of the environmental values of natural cryogenic recourses have been developed [21,24,[26][27][28]31]. If we compare this situation with the modern global trends, we can see that in the USA, Canada, Greenland, and Nordic countries, there has been a wide development in the study of the environmental value of natural cryogenic resources in the context of studying indigenous subsistence [34,35], changes in the hydrological regime [36][37][38], and Arctic tourism [39]. Research into using natural cryogenic resources in agriculture have been mostly relevant for Canada and some countries of Northern and Eastern Europe [40].…”

Section: Discussionmentioning

confidence: 99%

Cryogenic Resources: Ice, Snow, and Permafrost in Traditional Subsistence Systems in Russia

Fedorov

2019

Resources

View full text Add to dashboard Cite

This article is devoted to the study of the role of natural cryogenic resources in the traditional subsistence systems of the people of Russia. The main source of the actual information and the empirical basis reflecting the features of traditional ecological knowledge of the ethnic groups considered in the article are the scientific publications and ethnographic descriptions made by Russian researchers in the second half of the 19th century through to the beginning of the 21st century, and the results of our modern field research in the territory of Siberia and the Far East of Russia. The methodology of the study lies in the field of ethnoecology, and contains comparative and typological approaches, which have allowed for the detection and systematization of the main spheres of using natural cryogenic resources in traditional subsistence systems by the people of Russia, which include using the environment for indigenous subsistence, building materials, food preservation, obtaining potable water, the irrigation of crops, etc. In conclusion, some of the prospective for the ethnoecological examination of the role of the natural cryogenic resources in traditional subsistence systems were designated, and adaptations to modern innovative technologies based on the rational use of natural resources were also examined.

show abstract

Permafrost Boundary Shift in Western Siberia May Not Modify Dissolved Nutrient Concentrations in Rivers

Abstract: Abstract:Identifying the landscape and climate factors that control nutrient export by rivers in high latitude regions is one of the main challenges for understanding the Arctic

Cited by 37 publications

References 56 publications

Biogeochemistry of dissolved carbon, major, and trace elements during spring flood periods on the Ob River

Biogeochemistry of dissolved carbon, major, and trace elements during spring flood periods on the Ob River

Riverine particulate C and N generated at the permafrost thaw front: case study of western Siberian rivers across a 1700 km latitudinal transect

Cryogenic Resources: Ice, Snow, and Permafrost in Traditional Subsistence Systems in Russia

Contact Info

Product

Resources

About