FACTORS FOR FORMATION OF HYDROGEOCHEMICAL GROUNDWATER COMPOSITION IN THE NORTH OF RUSSIA�S WEST SIBERIA

2016 ◽  
Author(s):  
Tatyana Semenova
Keyword(s):  
West Siberia ◽  
The North ◽  
Groundwater Composition

A multiproxy record of sedimentation, pedogenesis, and environmental history in the north of West Siberia during the late Pleistocene based on the Belaya Gora section

2020 ◽  
pp. 1-19
Author(s):  
Vladimir Sheinkman ◽  
Sergey Sedov ◽  
Lyudmila S. Shumilovskikh ◽  
Elena Bezrukova ◽  
Dmitriy Dobrynin ◽  
...  
Keyword(s):  
Environmental History ◽  
Boreal Forests ◽  
West Siberia ◽  
Northern Eurasia ◽  
Partial Recovery ◽  
Radiocarbon Dates ◽  
Oxygen Isotope Stage ◽  
Mis 3 ◽  
The North ◽  
Mis 5

Abstract Recent revision of the Pleistocene glaciation boundaries in northern Eurasia has encouraged the search for nonglacial geological records of the environmental history of northern West Siberia. We studied an alluvial paleosol-sedimentary sequence of the high terrace of the Vakh River (middle Ob basin) to extract the indicators of environmental change since Marine Oxygen Isotope Stage (MIS) 6. Two levels of the buried paleosols are attributed to MIS 5 and MIS 3, as evidenced by U/Th and radiocarbon dates. Palynological and pedogenetic characteristics of the lower pedocomplex recorded the climate fluctuations during MIS 5, from the Picea-Larix taiga environment during MIS 5e to the establishment of the tundra-steppe environment due to the cooling of MIS 5d or MIS 5b and partial recovery of boreal forests with Picea and Pinus in MIS 5c or MIS 5a. The upper paleosol level shows signs of cryogenic hydromorphic pedogenesis corresponding to the tundra landscape, with permafrost during MIS 3. Boulders incorporated in a laminated alluvial deposit between the paleosols are dropstones brought from the Enisei valley by ice rafting during the cold MIS 4. An abundance of eolian morphostructures on quartz grains from the sediments that overly the upper paleosol suggests a cold, dry, and windy environment during the MIS 2 cryochron.

scholarly journals Peat soils of boreal regressive bogs in West Siberia: Problems of biological diagnostics and systematics

2016 ◽  
pp. 61-74 ◽  
Author(s):  
E. A. Shishkonakova ◽  
N. A. Avetov ◽  
T. Yu. Tolpysheva
Keyword(s):  
Soil Classification ◽  
West Siberia ◽  
Botanical Composition ◽  
Peat Soils ◽  
Surface Horizon ◽  
The North ◽  
Sphagnum Bogs ◽  
Russian Soil ◽  
Peat Surface ◽  
The Difference

In this paper we consider plant (geobotanical) indicators of soils, occurring in regressive bogs in the north taiga subzone of West Siberia. The specificity of regressive bogs is the difference between current vegetation and botanical composition of the peat surface horizon, which complicates their biological diagnostics. The data on peat botanical composition, degree of decomposition and thickness are presented. Destructive oligotrophic peat soils, the allocation of which is provided in the actual Russian soil classification at the level of subtype, occur in palsa bogs under shrub-lichen vegetation. Their indicators include lichens: Cladonia stellaris, C. rangiferina, C. stygia, C. arbuscula, C. mitis, Alectoria ochroleuca, Сetraria islandica, C. laevigata, Flavocetraria cucullata, F. nivalis, Govardia nigricans. A new subtype - peat oligotrophic regressive soils - which occurs in non-freezing bog is suggested. The indicators of this soil subtype in pine-shrub-sphagnum bogs are lichens Cladonia cenotea, C. chlorophaea, C. coniocraea, C. cornuta, C. crispata, C. deformis, C. gracilis, C. fimbriata, C. mitis, C. ochrochlora, C. pleurota, C. polydactyla, C. pyxidata, C. rangiferina, C. stellaris, C. subulata, C. sulphurina and liverwort Mylia anomala . The indicators of regressive soils in bog hollows are mainly liverwort Cladopodiella fluitans , mosses Warnstorfia fluitans , W. exannulata , and lichen Cetrariella delisei .

THE RESULTS OF NARROW LEAVED LUPINE VARIETIES EVALUATING FOR ECONOMICALLY VALUABLE TRAITS AND ADAPTABILITY TO THE BRYANSK REGION CONDITIONS

1970 ◽  
pp. 15-17
Author(s):  
P. А. Ageeva ◽  
М. V. Matyukhina ◽  
N. А. Pochutina ◽  
O. M. Gromova
Keyword(s):  
Grain Yield ◽  
Wide Spectrum ◽  
West Siberia ◽  
Climatic Conditions ◽  
Breeding Lines ◽  
North West ◽  
The North ◽  
Grain Productivity ◽  
Phosphorus And Potassium ◽  
Kaliningrad Region

The narrow-leafed lupin (Lupinus angustifolius L.) is a valuable legumes crop used as forage and green manure which is adapted to wide spectrum of soil-and climatic conditions; the crop has short domestication history. The protein content in its seeds and in dry matter of green mass varies from 30.0 to 37.0% and from 16.0 to 22.0 % respectively and depends on ecotype and soil-and-climatic conditions. This lupin specie can accumulate to 300 kg/ha symbiotic nitrogen in biomass and assimilates phosphorus and potassium of heavy available soil layers. It is very technological suitable for common used machinery systems. The State List of breeding achievements of Russia recommends the following regions for lupin cultivation: the North, the North-West, the Central, the Volga-Vyatka, the Middle-Volga, the Central Chernozem, the Ural, the West Siberia and the East Siberia. The tests were carried out in 2017-2020 in the All-Russian Lupin Scientific Research Institute which is located in the South-West of the Central region. Ten varieties and breeding lines bred in the Institute are tested. The samples differ by early ripeness and anthracnose tolerance. The average experimental variety grain yield was 2.38 t/ha. The vars. Uzkolistny 53-02, USN 53-236, Bryanskiy kormovoy and SBS 56-15 have the highest yield and adaptivity (103-113 %). The index of year conditions was revealed; 2017 with the index 0.56 was the most favorable for implementation of grain productivity of the tested narrow-leafed lupin varieties. In the ecological varieties testing the soil-and-climatic conditions of Shatilovskaya experimental station (Orel region) were the most favorable for implementation of variety grain productivity (4.0-4.5 t/ha). Grain yield was 3.0-4.0 t/ha in ecological locations which differ in soil-and-climatic conditions: there are Kaliningrad region, Mordovia Republic, Krasnoyarsk region etc.

LITHOPALEOGRAPHIC RECONSTRUCTIONS OF THE MIDDLE JURASIC EPOCH IN THE NORTH OF WEST SIBERIA AND THE KARA SEA AREA

2016 ◽  
pp. 65-77 ◽  
Author(s):  
G. G. Shemin ◽  
◽  
L. G. Vakulenko ◽  
V. I. Moskvin ◽  
V. V. Sapyanik ◽  
...  
Keyword(s):  
West Siberia ◽  
Kara Sea ◽  
The North ◽  
Sea Area

Causes of deformation of oil-gas industry structures in the north of West Siberia

1987 ◽  
Vol 24 (5) ◽  
pp. 185-188
Author(s):  
V. S. Savel'ev ◽  
G. V. Belotserkovskaya
Keyword(s):  
West Siberia ◽  
Gas Industry ◽  
The North ◽  
Industry Structures ◽  
Oil Gas

The origin and age of the “icy complex”; in the north of West Siberia

1989 ◽  
Vol 13 (4) ◽  
pp. 297-304
Author(s):  
I. D. Danilov ◽  
O. B. Parunin ◽  
Ye. I. Polyakova
Keyword(s):  
West Siberia ◽  
The North

scholarly journals Physical-mathematical modeling of multiyear dynamics of water-balance and snow-reserve components in Ob-Irtysh river basin

2019 ◽  
Vol 46 (4) ◽  
pp. 347-358
Author(s):  
E. M. Gusev ◽  
O. N. Nasonova ◽  
E. A. Shkurko ◽  
L. Ya. Dzhogan ◽  
G. V. Ayzel
Keyword(s):  
River Basin ◽  
River Flow ◽  
West Siberia ◽  
Information Support ◽  
Ob River ◽  
The North ◽  
Calculation Technique ◽  
Swap Model ◽  
Irtysh Basin ◽  
Geological Substrate

The possibility of use of the previously developed calculation technique of the North Rivers flow hydraulic records for the Ob River, the largest river in Russia by basin area, flowing under severe conditions in West Siberia was examined. The calculation technique is based on the model of heat and moisture exchange of the geological substrate with the Earth’s atmosphere, the Soil-Water–Atmosphere–Plants (SWAP) model, in conjunction with information support based on global databases of geological-substrate parameters and information obtained from observational data collected by weather stations within the Ob River basin. Uncertainty of the Ob River flow was assessed. Additionally, the ability of the SWAP model to reproduce multiyear dynamics from average values of snow reserves in the Ob-Irtysh basin was examined.

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