Agrochemical assessment of cultivation efficacy for different potato varieties on meadow-chernozem soils of the Irtysh river area in Western Siberia

In this paper the dynamics of invasion extensiveness of freshwater Bithyniidae snails by trematodes Opisthorchis felineus (cat fluke) in the waters of Khanty-Mansi Autonomous Area was determined. The study was conducted for the Ob river (Surgut) and the Irtysh river (Khanty-Mansiysk) for 7 years. As a result of the study, it was determined that the population density of snails and the extensiveness of their invasion by O. felineus trematodes are higher in the Irtysh River, which is associated with the hydrological regime of the river. Indicators of invasion extensiveness are higher for Bithynia tentaculata snails than Bithynia troscheli.

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Characteristic properties of the genesis of Alnus incana (L.) Moench. associations in the south of Western Siberia

E3S Web of Conferences ◽

10.1051/e3sconf/202021709012 ◽

2020 ◽

Vol 217 ◽

pp. 09012

Author(s):

Boris Kharitontcev ◽

Elena Popova

Keyword(s):

Western Siberia ◽

Higher Plants ◽

Composition Analysis ◽

Alnus Incana ◽

Anthropogenic Influences ◽

Grass Cover ◽

The South ◽

Synanthropic Species ◽

Irtysh River ◽

The Irtysh River

The associations formed by Alnus incana (L.) Moench. in the south of Western Siberia are limited to the middle and lower reaches of the Irtysh river in the Tyumen region (Tobolsk district, Russia). The paper describes Alnetum pteridiosum, Alnetum urticosum, Alnetum еquisetosum, Alnetum coricosum, Alnetum coricoso – еquisetosum, Alnetum coricoso – oxalidosum, Alnetum curtico – еquisetosum, Alnetum еquisetoso – miliosum, Alnetum coricosa – stellariosum, Alnetum urtico – aegopodiosum, Alnetum urtico – stellariosum, Alnetum–cirsiosum, Alnetum cystopteriosum, Alnetum urtico – miliosum, Alnetum poо – urticosum, Alnetum chrysospleniosum, Alnetum corydaliosum, Alnetum impatieno - urticosum and Alnetum stellariosum associations. In these associations, more than a hundred of species of higher plants grow. The species composition analysis showed that they are mesothermal and hydrophilic, the shrub layer is not typical for them, and the grass cover of alder forests is not uniform in origin. During the formation of Alnetum association they interact with taiga, birch and linden forests through mutual exchange of species, and also experience anthropogenic influences, accompanied by the penetration of synanthropic species.

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Zoobenthos and Zooperiphyton of the Irtysh river

Hydrobiological Journal ◽

10.1615/hydrobj.v36.i1.40 ◽

2000 ◽

Vol 36 (1) ◽

pp. 17

Author(s):

T. A. Sharapova

Keyword(s):

Irtysh River ◽

The Irtysh River

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Breeding evaluation of soybean varietal accessions of the vir world collection under conditions of the Siberian region of the Irtysh River

Russian Agricultural Sciences ◽

10.3103/s1068367409050048 ◽

2009 ◽

Vol 35 (5) ◽

pp. 303-306

Author(s):

L. V. Omel’yanyuk ◽

Ya. B. Bendina ◽

A. M. Asanov

Keyword(s):

Siberian Region ◽

World Collection ◽

Irtysh River ◽

The Irtysh River

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A stonefly species extinct in Europe (Taeniopteryx araneoides Klapalek, 1902, Taeniopterygidae, Plecoptera) is thriving in the Irtysh River in West Siberia and North Kazakhstan

Zootaxa ◽

10.11646/zootaxa.4247.2.5 ◽

2017 ◽

Vol 4247 (2) ◽

pp. 141 ◽

Cited By ~ 1

Author(s):

OLEG E. KOSTERIN ◽

NAZYMGUL AKIMBEKOVA ◽

VLADIMIR V. DUBATOLOV ◽

IGNAC SIVEC

Keyword(s):

Anthropogenic Impacts ◽

West Siberia ◽

Large Rivers ◽

Geographical Range ◽

Central Siberia ◽

Irtysh River ◽

The Irtysh River

Taeniopteryx araneoides Klápalek, 1902, a stonefly species with brachypterous males, known historically from the Danube, Elbe, and Dniester rivers, but considered to be extinct at least in Europe for more than a century. This species has also been doubtfully reported from Krasnoyarsk, Central Siberia. However, we report this species to be still thriving in the Irtysh River at the cities of Omsk (West Siberia, Russia) and Pavlodar (North Kazakhstan). The occurrence of this species reported least fifty years ago from the Yenisey River at Krasnoyarsk, Russia is considered possible. Unlike the widespread Palaearctic T. nebulosa (Linnaeus, 1758) that occurs in a broad range of stream types, T. araneoides is a potomon species, apparently confined to large rivers. In this habitat, it appears vulnerable to anthropogenic impacts and may be unable to compete with T. nebulosa. The construction of dams and reservoirs has apparently extirpated T. araneoides from most of its former geographical range.

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Attempt to Define the Complexes of Bat Ectoparasites in the Boreal Palaearctic Region / Попытка выделения комплексов эктопаразитов летучих мышей бореальной Палеарктики

Vestnik Zoologii ◽

10.1515/vzoo-2015-0008 ◽

2015 ◽

Vol 49 (1) ◽

pp. 75-86 ◽

Cited By ~ 1

Author(s):

M. V. Orlova ◽

O. L. Orlov

Keyword(s):

Far East ◽

Palaearctic Region ◽

Taiga Zone ◽

The West ◽

Bat Flies ◽

The Family ◽

Gamasid Mites ◽

Faunal Complexes ◽

Irtysh River ◽

The Irtysh River

Abstract The article presents the most complete data on the distribution of ectoparasites in the boreal Palaearctics (gamasid mites of the genera Spinturnix, Macronyssus, and Steatonyssus, bat flies of the family Nycteribiidae, fleas of the family Ischnopsyllidae) and its preferences for the hosts. On the basis of these data as well as the data for the resettlement of bats in Eurasia 30 species of boreal bat ectoparasites combined into three faunal complexes (Transpalaearctic, European-Ural and Siberian-Far East) and two groups (European-Ural species, penetrating to the east and Siberian-Far East, penetrating to the west). The boundary between the European-Ural and Siberian-Far East faunal complexes is situated presumably along the Irtysh River. The resulting zoning provides a new look at the parasitocenosis of ectoparasites in the taiga zone of the Palaearctics.

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CHARACTERISTIC OF HARD TO IDENTIFY GENUS ACIPENSER SPECIES IN THE IRTYSH RIVER

VESTNIK OF ASTRAKHAN STATE TECHNICAL UNIVERSITY ◽

10.24143/1812-9498-2018-2-90-98 ◽

2018 ◽

pp. 90-98 ◽

Cited By ~ 1

Author(s):

Andrey Stepanovich Aldokhin ◽

Gleb Igorevich Volosnikov

Keyword(s):

Water Area ◽

Bone Plates ◽

Similar Species ◽

Summer Period ◽

Sturgeon Species ◽

Irtysh River ◽

June July ◽

The Irtysh River

In the summer period (June-July) of 2018 on the Irtysh river (the Tobolsk region) in the control catches of sterlet there were found specimens with pronounced differences from individuals inhabiting this water area. Differences were found in the form of bone plates and linear-weight characteristics. Later, local fishermen reported on many cases of specimens having the above differences. Reports about the similar species came from the Uvat region. In order to establish the belonging of these individuals to a particular family there have been investigated meristic features which are considered diagnostic for sturgeon species, as well as for hybrids. In the result of the study there was made a conclusion about belonging of these specimens to the genus Acipenser and, most likely, to the sterlet species.

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Modeling Snow Depth and Snow Water Equivalent Distribution and Variation Characteristics in the Irtysh River Basin, China

Applied Sciences ◽

10.3390/app11188365 ◽

2021 ◽

Vol 11 (18) ◽

pp. 8365

Author(s):

Liming Gao ◽

Lele Zhang ◽

Yongping Shen ◽

Yaonan Zhang ◽

Minghao Ai ◽

...

Keyword(s):

Snow Cover ◽

River Basin ◽

Snow Depth ◽

Snow Water Equivalent ◽

Snow Accumulation ◽

Implicit Scheme ◽

Snow Water ◽

Irtysh River ◽

Simulation Results ◽

The Irtysh River

Accurate simulation of snow cover process is of great significance to the study of climate change and the water cycle. In our study, the China Meteorological Forcing Dataset (CMFD) and ERA-Interim were used as driving data to simulate the dynamic changes in snow depth and snow water equivalent (SWE) in the Irtysh River Basin from 2000 to 2018 using the Noah-MP land surface model, and the simulation results were compared with the gridded dataset of snow depth at Chinese meteorological stations (GDSD), the long-term series of daily snow depth dataset in China (LSD), and China’s daily snow depth and snow water equivalent products (CSS). Before the simulation, we compared the combinations of four parameterizations schemes of Noah-MP model at the Kuwei site. The results show that the rainfall and snowfall (SNF) scheme mainly affects the snow accumulation process, while the surface layer drag coefficient (SFC), snow/soil temperature time (STC), and snow surface albedo (ALB) schemes mainly affect the melting process. The effect of STC on the simulation results was much higher than the other three schemes; when STC uses a fully implicit scheme, the error of simulated snow depth and snow water equivalent is much greater than that of a semi-implicit scheme. At the basin scale, the accuracy of snow depth modeled by using CMFD and ERA-Interim is higher than LSD and CSS snow depth based on microwave remote sensing. In years with high snow cover, LSD and CSS snow depth data are seriously underestimated. According to the results of model simulation, it is concluded that the snow depth and snow water equivalent in the north of the basin are higher than those in the south. The average snow depth, snow water equivalent, snow days, and the start time of snow accumulation (STSA) in the basin did not change significantly during the study period, but the end time of snow melting was significantly advanced.

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The influence of mineral fertilizers on the mass of plant-root residues of grain crops on chernozem soils of the Western Siberia

BIO Web of Conferences ◽

10.1051/bioconf/20213603007 ◽

2021 ◽

Vol 36 ◽

pp. 03007

Author(s):

D.V. Eremina

Keyword(s):

Spring Wheat ◽

Mineral Nutrition ◽

Western Siberia ◽

Plant Root ◽

Steppe Zone ◽

Soil Science ◽

Mineral Fertilizers ◽

Forest Steppe ◽

Grain Crops ◽

Chernozem Soils

The influence of various levels of mineral nutrition on the accumulation of plant-root residues of spring wheat and oats in the conditions of the forest-steppe zone of Western Siberia is studied. The natural agricultural background of leached chernozem was taken as a control. The research was carried out at the station of the Department of Soil Science and Agrochemistry of the State Agrarian University of the Northern Trans-Urals. In the experiment, various doses of mineral fertilizers were used, ensuring the yield of grain crops from 3.0 to 6.0 t/ha. It was found that the mass of plant-root residues of spring wheat and oats has no significant differences and depends on the level of mineral nutrition. On the natural agricultural background, the mass of plant-root residues is 3.24-3.88 t/ha. Fertilization increases the yield of grain crops to 6.0 t/ha, and also increases the amount of plant-root residues: spring wheat - 4.47; oats – 6.04 t/ha. Increasing the doses of mineral fertilizers reduces the ratio of yield to the mass of plant-root residues from 1:1.6 to 1:1.10 units. It was found that almost half of the root system of spring wheat and oats is located in a layer of 0-10 cm, while the share of roots in a layer of 30-40 cm accounts for no more than 16% of the mass.

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