scholarly journals Ecological and reclamation conditions for the recultivation of the oil-polluted peat soils of the central-taiga subzone of West Siberia

2008 ◽  
Vol 1 (1S) ◽  
pp. 51-54 ◽  
Author(s):  
M V Bannikov
Keyword(s):  
Western Siberia ◽  
West Siberia ◽  
Vegetation Period ◽  
Necessary Condition ◽  
Peat Soils ◽  
Hydrological Condition ◽  
Flooding Regime

Remediation of oil-polluted peat soils is very important for Western Siberia. The necessary condition for successful of it is taking into consideration of ecological, climatic and hydrological condition of this region. The general parameters of environments here are high flooding, regime of temperature, short vegetation period, and specific properties of peat.

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 .

scholarly journals IMMUNOCHEMICAL ANALYSIS OF RECOMBINANT CHIMERIC POLYPEPTIDE OspCgar+afz OF BORRELIA GARINII AND B. AFZELIIISOLATES

2016 ◽  
pp. 37-44
Author(s):  
VS. .. Karavaev ◽  
E. S. Oleinikova ◽  
M. Sh. Azaev ◽  
A. B. Beklemishev'
Keyword(s):  
Recombinant Proteins ◽  
Western Siberia ◽  
West Siberia ◽  
Amino Acid Sequences ◽  
Borrelia Garinii ◽  
Test Systems ◽  
Antigenic Activity ◽  
Escherichia Coli Cells ◽  
Antigenic Properties ◽  
Chimeric Polypeptide

Aim. Comparative study of antigenic properties of recombinant proteins OspCgar and OspCafz and recombinant chimeric polypeptide OspCgar+afZ, that contains amino acid sequences of mature immune dominant OspC proteins of West-Siberian isolates of Borrelia garinii (OspCgar) and B. afzelii (OspCafz), and evaluation of possibility of their use as antigens during creation of test-systems for serodiagnostics of Lyme borreliosis (LB) on the territory of Western Siberia. Materials and methods. Recombinant chimeric polypeptide OspCgar+afz and recombinant mature proteins OspCgar and OspCafz, obtained by expression of the corresponding genes in Escherichia coli cells, purified by affinity chromatography in Ni-NTA-sepharose CL-6B and studied by EIA method for the ability to bind antibodies from sera of LB patients. Results. A difference in sensitivity of determination by EIA method of specific IgM and IgG against borreliae in blood sera of LB patients with localized stage of the disease during use of OspCgar, OspCafz and OspCgar+afZ chimera as antigens was shown. Chimeric antigen OspCgar+afz was established to show higher antigenic activity compared with each of the OspCgar or OspCafZ antigens separately. Conclusion. The results of the study allow to examine the recombinant chimeric polypeptide OspCgar+afz as a possible component during creation of test-systems for serodiagnostics of LB on the territory of West Siberia.

scholarly journals The «red snow» of the Polar Urals (Western Siberia)

2019 ◽  
Vol 16 ◽  
pp. 00022
Author(s):  
Yuriy Naumenko
Keyword(s):  
Sea Level ◽  
Plant Communities ◽  
Western Siberia ◽  
West Siberia ◽  
Polar Urals ◽  
Snow Samples ◽  
The Polar Urals

Pink-red colored snow fields were sampled in the area of Ochety Lake (the Polar Urals, West Siberia) at the altitude of 272 m above the sea level in August 2019. Zygospores of Chlamydomonas nivalis prevailed in plant communities. Altogether, 9 species of algae have been discovered in snow samples: 7 species of Cyanoprokaryota, 1 species of Bacillariophyta and 1 species of Chlorophyta.

SCREENING OF SOFT WHEAT VARIETY OF KASIB NURSERY TO THE BROWN AND STEBLE MILDEW IN THE CONDITIONS OF WESTERN SIBERIA

2018 ◽  
Vol 12 (4) ◽  
pp. 61-66
Author(s):  
Владимир Шаманин ◽  
Vladimir Shamanin ◽  
Инна Потоцкая ◽  
Inna Potockaya ◽  
Олег Кузьмин ◽  
...  
Keyword(s):  
Stem Rust ◽  
Western Siberia ◽  
Wheat Variety ◽  
West Siberia ◽  
Soft Wheat ◽  
Forest Steppe ◽  
Wheat Varieties ◽  
Rust Diseases ◽  
Resistant Varieties ◽  
Set Up

In connection with climate warming and, consequently, the deterioration of phytopathological situation, associated with the emergence of aggressive races of fungal diseases, as well as the cultivation of susceptible varieties on the main wheat sowing area in Western Siberia, it is important to expand the genotypic variety of wheat varieties and to search for new sources of long-term sustainability. The results of the assessment of spring soft wheat varieties of the KASIB breeding nursery, set up jointly by the scientific institutions of Western Siberia, Kazakhstan and CIMMYT International Center for the Improvement of Corn and Wheat are presented in the conditions of the southern forest-steppe of West Siberia. The research was conducted in 2011-2016, using field and laboratory methods. The results of the assessment of susceptibility of KASIB varieties to brown and stem rust have shown, that varieties with high resistance prevail among resistant varieties in all phases of plant development, which indicates targeted selection for immunity with genes of race-specific and age resistance. The use of cluster analysis made it possible to identify significant differences in productivity and resistance to rust diseases of the varieties of KASIB program. Wheat varieties from KASIB are underlined: 14, 15 - Lutestsens 141/03-2 and Sigma (SibNIISKh), from KASIB nursery 16, 17 - Erytrospermum 85-08 (Omsk SAU), Lutestsens 6/04-4 and Lutestsens 186/04- 61 (SibNIISKh), resistant to brown and stem rust, exceeding in terms of yield standards, which are recommended to be used as a starting material for wheat selection in Western Siberia.

scholarly journals A revised northern soil Hg pool, based on western Siberia permafrost peat Hg and carbon observations

2020 ◽  
Author(s):  
Artem G. Lim ◽  
Martin Jiskra ◽  
Jeroen E. Sonke ◽  
Sergey V. Loiko ◽  
Natalia Kosykh ◽  
...  
Keyword(s):  
Soil Carbon ◽  
Carbon Budget ◽  
Western Siberia ◽  
Mineral Soil ◽  
Peat Soils ◽  
Run Off ◽  
Permafrost Soils ◽  
Siberian Permafrost ◽  
Soil Hg ◽  
Carbon Inventory

Abstract. Natural and anthropogenic mercury (Hg) emissions are sequestered in terrestrial soils over short, annual, to long, millennial time scales, before Hg mobilization and run-off impacts wetland and coastal Ocean ecosystems. Recent studies have used Hg to carbon (C) ratios, RHgC, measured in Alaskan permafrost mineral and peat soils, together with a northern soil carbon inventory, to estimate that these soils contain large amounts, 184 to 755 Gg of Hg in the upper 1 m. However, measurements of RHgC on Siberian permafrost peatlands are largely missing, leaving the size of estimated northern soil Hg budget, and its fate under arctic warming scenarios uncertain. Here we present Hg and carbon data for 6 peat cores, down to mineral horizons at 1.5–4 m depth, across a 1700 km latitudinal (56 to 67° N) permafrost gradient in the Western Siberian lowlands (WSL). Hg concentrations increase from south to north in all soil horizons, reflecting enhanced net accumulation of atmospheric gaseous Hg by the vegetation Hg pump. The RHgC in WSL peat horizons decreases with depth from 0.38 Gg Pg−1 in the active layer to 0.23 Gg Pg−1 in continuously frozen peat of the WSL. We estimate the Hg pool (0 1 m) in the permafrost-affected part of WSL peatlands to be 9.3 ± 2.7 Gg. We review and estimate pan-arctic organic and mineral soil RHgC to be 0.19 and 0.77 Gg Pg−1, and use a soil carbon budget to revise the northern soil Hg pool to be 67 Gg (37–88 Gg, interquartile range (IQR)) in the upper 30 cm, 225 Gg (102–320 Gg) in the upper 1 m, and 557 Gg (371–699 Gg) in the upper 3 m. Using the same RHgC approach, we revise the global upper 30 cm soil Hg pool to contain 1078 Gg of Hg (842–1254 Gg, IQR), of which 6 % (67 Gg) resides in northern permafrost soils. Additional soil and river studies must be performed in Eastern and Northern Siberia to lower the uncertainty on these estimates, and assess the timing of Hg release to atmosphere and rivers.

Sign in / Sign up

Export Citation Format

Share Document