scholarly journals CHARACTERISTICS OF SEED REPRODUCTION IN THE SPECIES OF THE GENUS SPIRAEA L. UNDER THE CULTIVATION IN THE EUROPEAN NORTH-EAST (REPUBLIC OF KOMI)

2019 ◽  
pp. 136-143
Author(s):  
A.N. Smirnova ◽  
◽  
K.S. Zainullina ◽  
Keyword(s):  
Seed Reproduction ◽  
North East ◽  
European North

Vegetation on technogenic habitats in the far-north taiga and south forest-tundra of the European North-East of Russia. Alliance Chamerio angustifolii–Matricarion hookeri A. Ishbirdin et al. 1996

2019 ◽  
pp. 77-94
Author(s):  
I. A. Likhanova ◽  
G. S. Shushpannikova ◽  
L. P. Turubanova
Keyword(s):  
Komi Republic ◽  
Oil Fields ◽  
Soil Enrichment ◽  
Far North ◽  
North East ◽  
European North ◽  
Ecological Scales ◽  
Floristic Classification ◽  
Made In

The results of floristic classification of technogenic vegetation (alliance Chamerio angustifolii–Matricarion hookeri A. Ishbirdin et al. 1996, order Chamerio–Betuletalia nanae Khusainov et al. in Sumina 2012, class Matricario–Poetea arcticae A. Ishbirdin in Sumina 2012) conducted by the Braun-Blanquet method (Braun-Blanquet, 1964; Mirkin, Naumova, 1998) are given. 98 geobotanical relevés, made in 1981–2013 on areas of oil fields and suburbs of the Usinsk city (Komi Republic) (56–60о N, 67–66о E), were involved into analysis (Fig. 1). The ecological parameters like moisture (F) and mineral nitrogen soil enrichment (N) were assessed using the Ellenberg ecological scales (Ellenberg, 1974).

Flora of technologenic landscapes of the taiga zone of the European North-East (Komi Republic)

2021 ◽  
Author(s):  
V.A. Martynenko ◽  
◽  
B.I. Gruzdev
Keyword(s):  
Vascular Plants ◽  
Komi Republic ◽  
Taxonomic Composition ◽  
Taiga Zone ◽  
North East ◽  
Annotated List ◽  
European North ◽  
Disturbed Areas ◽  
Synanthropic Flora

The results of a long-term studu of the flora of technologenichabitats of the taiga zone of the Komi Republic are summarized. An annotated list of vascular plants is presented, including 406 species from 222 genera and 52 families. For each of them, it is indicated that they belong to a life from, an element of the flora and type of area, an ecologicsl group, zonal and ecotopic affinity. Data on the taxonomic composition of vascular plants, the biomorphrological, geographical, and ecological structures of synanthropic flora, the diversity of synanthropic plant communities, and the stages of vegetation restoration in disturbed areas are presented.

scholarly journals The Specificities of the Temperature Regime of Seasonaly Freezing Soils of Tundra Landscape of European North East of Russia

2017 ◽  
pp. 3-21 ◽  
Author(s):  
D. A. Kaverin ◽  
A. V. Pastukhov
Keyword(s):  
Temperature Regime ◽  
Snow Accumulation ◽  
Soil Freezing ◽  
North East ◽  
European North ◽  
Soil Temperature Regime ◽  
Taiga Soils ◽  
The Impact

The specificities of temperature regime of automorphic clayey soils forming under the suffruticous and shrub vegetation within the zone of tundra and forest tundra in the European North-East were studied. As the objects of investigation we chose the organic cryometamorphic soils and cryometamorphic gleezems; in the both soil types the CRM cryometamorphic horizon is developed. The soils are formed in conditions of long-termed seasonal freezing at the absence (deep occurrence) of the permafrost rocks. The dynamics near the zero temperatures (zero curtains) is characterized. The hypothesis, concerning the role of zero curtains in the sustaining of the specific angular-grainy structure within the mass of cryometamorphic horizons is formulated. The mass of cryometamorphic horizons and the depth of present-day zero curtains, which observed at the long-term seasonal soil freezing, correlate to each other. The impact of suffruticous and shrub vegetation on the specificities of winter and summer soil temperature regime is determined. We discovered that the main differences between the soils developing under suffruticous and shrub vegetation tundras are stipulated by the different intensity of the snow accumulation within these areas. The soils that are developed under the shrub vegetation are warmer than soils developed under the suffruticous tundra, where permafrost may occur at the depth of 2-3 cm. In general, seasonaly freezing tundra soils are located in the middle of the range of the automorphic clay loamy soils in the tundra-taiga ecotone of European North-East of Russia, and occupy the niche between permafrost tundra and non-permafrost north taiga soils.

scholarly journals The Library of Geologist A.Y. Krems

2014 ◽  
pp. 78-84
Author(s):  
L. P. Roshchevskaya ◽  
E. G. Buldakova
Keyword(s):  
Industrial Development ◽  
Oil And Gas ◽  
Komi Republic ◽  
North East ◽  
Oil And Gas Fields ◽  
European North ◽  
Socialist Labor ◽  
History Of ◽  
Gas Fields ◽  
First Time

For the first time there is reconstructed the history of creation of the Memorial Flat of the Doctor of Geological and Mineralogical Sciences, Professor Andrey Yakovlevich Krems, Hero of Socialist Labor, Laureate of two State Prizes of USSR (Ukhta town, Komi Republic). There is presented the characteristic of his private library, which reflected his professional interests and which he collected for several decades. A.Y. Krems developed and implemented mine oil extraction method, discovered several oil and gas fields of global impact and contributed to the industrial development of the European North-East.

Pleistocene stratigraphy of the Vychegda River basin, European North-East

2020 ◽  
Vol 546 ◽  
pp. 185-195 ◽  
Author(s):  
Nataliya Zaretskaya ◽  
Andrei Panin ◽  
Anatoliy Molod'kov ◽  
Svetlana Trofimova ◽  
Aleksandra Simakova ◽  
...  
Keyword(s):  
River Basin ◽  
North East ◽  
European North

scholarly journals Humic substances elemental composition of selected taiga and tundra soils from Russian European North-East

2017 ◽  
Vol 38 (2) ◽  
pp. 125-147 ◽  
Author(s):  
Evgeny Lodygin ◽  
Vasily Beznosikov ◽  
Evgeny Abakumov
Keyword(s):  
Organic Matter ◽  
Elemental Composition ◽  
Humic Substances ◽  
Humic Acids ◽  
Mineral Soil ◽  
Formation Mechanisms ◽  
Tundra Soils ◽  
North East ◽  
European North ◽  
Organic Matter Stabilization

Abstract Soils of Russian European North were investigated in terms of stability and quality of organic matter as well as in terms of soils organic matter elemental composi­tion. Therefore, soil humic acids (HAs), extracted from soils of different natural zones of Russian North-East were studied to characterize the degree of soil organic matter stabilization along a zonal gradient. HAs were extracted from soil of different zonal environments of the Komi Republic: south, middle and north taiga as well as south tundra. Data on elemental composition of humic acids and fulvic acids (FAs) extracted from different soil types were obtained to assess humus formation mechanisms in the soils of taiga and tundra of the European North-East of Russia. The specificity of HAs elemental composition are discussed in relation to environmental conditions. The higher moisture degree of taiga soils results in the higher H/C ratio in humic substances. This reflects the reduced microbiologic activity in Albeluvisols sods and subsequent conser­vation of carbohydrate and amino acid fragments in HAs. HAs of tundra soils, shows the H/C values decreasing within the depth of the soils, which reflects increasing of aromatic compounds in HA structure of mineral soil horizons. FAs were more oxidized and contains less carbon while compared with the HAs. Humic acids, extracted from soil of different polar and boreal environments differ in terms of elemental composition winch reflects the climatic and hydrological regimes of humification.

scholarly journals Features of vegetation, flowering and fruiting of the genus Spiraea L. species in the cultivation in the European North-East (Republic of Komi)

2018 ◽  
Vol 7 (2) ◽  
pp. 115-120
Author(s):  
Anna Nikolaevna Smirnova ◽  
Klavdiya Stepanovna Zaynullina
Keyword(s):  
Geographical Origin ◽  
Total Duration ◽  
Botanical Garden ◽  
Northern Region ◽  
Climatic Conditions ◽  
Middle Taiga ◽  
Flowering Period ◽  
North East ◽  
European North ◽  
Ornamental Horticulture

The paper deals with the flowering and fruiting of introduced species of Spiraea L. genus in the collection of the Botanical garden of the Institute of biology of Komi SC of Ural branch of RAS, located in the middle taiga subzone of the European North-East of Russia. The collection of Spiraea genus by this time includes more than 40 taxa of plants of different geographical origin, including one species of local flora. Characteristics of vegetation, flowering and fruiting indicators of nine species of perennial plants of the genus are given based on the results of phenological observations during five years. It is shown that the seasonal rhythm of plant development in the new conditions corresponds to the climatic conditions of the subzone of the middle taiga. There are differences in the dates of beginning and duration of flowering in different species Spiraea of three sections, the total duration of flowering of studied species is almost 100 days. The species of Spiraria section are characterized by latest start and a long flowering period. Plants of all studied species are characterized by annual flowering and fruiting with the formation of benign seeds; some species are capable of self-seeding. The revealed characteristics allow us to consider that the studied species of Spiraea genus have successfully adapted in the Northern region and can be used in ornamental horticulture.

scholarly journals Assessment and prediction for the development of air transport in the European North-East of the Russian Federation

2017 ◽  
Vol 15 (1) ◽  
pp. 74-84
Author(s):  
A.N. Kiselenko ◽  
◽  
I.V. Fomina ◽  
A.A. Sheveleva ◽  
◽  
...  
Keyword(s):  
Russian Federation ◽  
Air Transport ◽  
North East ◽  
European North ◽  
The Russian Federation
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