Regional features of microwave radiation and snow cover interaction on the example of the North of the European part of Russia

Author(s):  
V.V. Tikhonov ◽  
D.A. Bojarskiy ◽  
L.M. Kitaev ◽  
M.D. Raev ◽  
E.A. Cherenkova
2011 ◽  
pp. 101-116 ◽  
Author(s):  
B. Yu. Teteryuk

The results of a sintaxonomical study of plant communities of the Yamozero lake (the North-East of the European part of Russia) are presented. The diversity of the aquatic and helophytic vegetation of the Yamozero lake consists of 16 associations and 2 communities of 6 unions, 4 orders and 2 classes of the floristic classification: Potamogetonetea (7 associations, 2 communities), Phragmito-Magnocaricetea (9 associations). Many of described associations are widely distributed in the Central and the Eastern Europe. Some associations have the boundaries of their ranges. Some communities include 2 rare species of regional level: Isoetes setacea and Sagittaria natans.


2020 ◽  
Vol 163 ◽  
pp. 04003
Author(s):  
Sergey Kharchenko ◽  
Yury Belyaev

The paper describes the methodology and presents the results of the calculation of the spectral characteristics of the terrain for the territory of the Bolshezemelskaya and Malozemelskaya Tundra (the north of the European part of Russia). There are nine terrain clusters, differing in the topographic dissection pattern. Their geomorphological interpretation is given. Three clusters characterize mountainous and coarsely hilly terrain with the depth of dissection from 150 m and more. The others are low and elevated terrains with much lower depths of dissection (up to 50 m) and different patterns of interposition of landforms.


Author(s):  
V.V. Guryanov ◽  
A.K. Sungatullin

The spatio-temporal variability of the average values of temperature indices of climate extremity in the territory of the European part of Russia (ER) in 1980-2019 is presented. To calculate the extremeness indices, we used hourly data on the maximum and minimum temperatures obtained using the ERA5 reanalysis on a 1°´1° spatial grid. Statistical processing of the index values revealed an increase in the temperature indices TNX, TNN, TXN, TXX, associated with the minimum and maximum temperatures, with the exception of the north and southeast of the region. An increase in the number of sunny days and a decrease in the number of frosty days were also revealed.


2019 ◽  
Vol 59 (2) ◽  
pp. 233-244
Author(s):  
V. I. Batuev ◽  
I. L. Kalyuzhny

Long-term complex observations covering the period of 1949–2018 made possible to determine the average annual characteristics of the depth of freezing of wetlands in the North and Northwest of the European territory of Russia together with main factors of its formation, and spatial and temporal variability. The main factors that determine the depth of freezing of wetlands are ambient temperature, snow cover thickness, and a degree of watering of the micro landscape (water reserves of the micro landscape). At the initial stage of freezing, the major factor is the ambient temperature, when intensity of the freezing reaches 0.5–0.8 cm/day. As snow falls, the freezing rate becomes smaller, and when the snow cover thickness reaches 25–30 cm the depth amounts to 0.2–0.3 cm/day and smaller. It was found that the spatial variability of the freezing depth decreases from large values of the coefficient of variation (0.3–0.4) at the depth of 20–30 cm to less than 0.1 when the depth exceeds 60 cm. The largest values of the depth are recorded in the North of the Kola Peninsula, where sometimes they reach from 84 to 97 cm with the average values of 48–66. In large hummocky bogs, when the seasonal freezing comes down to 63–65 cm it links with the permafrost layer. On average, swamps of these bogs freeze down to a depth of 68 cm. The average climatic depth of freezing of oligotrophic bogs of the NorthWest is 21–24 cm; in some years, freezing of them reaches 32–40 cm. It has been shown that the relative warming of the climate resulted in decreasing in the depth of freezing of wetlands in the North and North-West of the European territory of Russia. Relative to the previous climatic period, the depth of frost penetration in the northern Ilasskoye bog decreased by 32%, and in north-western Lammin-Suo bog – by 31%.


2020 ◽  
Vol 16 (2) ◽  
pp. 225-331
Author(s):  
A.V. Fateryga ◽  
◽  
M.Yu. Proshchalykin ◽  

New data on 22 species of bees of the family Megachilidae from the North Caucasus and the south of European Russia are reported. Six species are new to Russia: Hoplitis curvipes (Morawitz, 1871), Osmia cinerea Warncke, 1988, O. ligurica Morawitz, 1868, O. cyanoxantha Pérez, 1879, Protosmia glutinosa (Giraud, 1871), and Coelioxys mielbergi Morawitz, 1880. Hoplitis turcestanica (Dalla Torre, 1896), sp. resurr. is treated as a distinct species, not a junior synonym of H. caularis (Morawitz, 1875). Megachile albocristata Smith, 1853 and M. alborufa Friese, 1911 are listed instead of previously recorded M. lefebvrei (Lepeletier de Saint-Fargeau, 1841) and M. pyrenaica (Lepeletier de Saint-Fargeau, 1841), respectively. Fourteen new regional records are reported: seven species are new to the North Caucasus, five ones are new to the south of European Russia, and two species are new to the European part of Russia as a whole. The numbers of megachilid bee species currently known in Russia, the North Caucasus, and the south of European Russia are 217, 130, and 71, respectively. The lectotype of Osmia proxima Morawitz, 1875 is designated.


Author(s):  
А.В. Бялт ◽  
В.В. Бялт

В статье даны название и описание новой для науки формы жимолости чёрной – Lonicera nigra L. f. purpurea A.V. Byalt & V.V. Byalt f. nova. (Caprifoliaceae), обнаруженной в окрестностях поселка Приветнинское Ленинградской области. Растение имеет характерные пурпурные листья. Приведена информация о месте произрастания, отличии новой формы от близких таксонов (составлен латинский диагноз), указаны типовые образцы (голотип и изотип) и место их хранения (Гербарий БИН РАН – LE). Декоративность новой формы позволяет рекомендовать её для озеленения в культуре в г. Санкт-Петербурге и других городах Северо-Запада Европейской части России, как и сам вид, хорошо адаптировавшийся в регионе. Статья иллюстрирована 3 фотографиями и картой. In the article a new for science form of black honeysuckle – Lonicera nigra L. f. purpurea A.V. Byalt & V.V. Byalt f. nova (Caprifoliaceae) was found in the vicinity of the village Privetninskoye, Leningrad region, it differs by very characteristic purple leaves. Information is given on the place of growth, the difference between a new form from close taxa (Latin diagnosis is given) and the type specimens (holotype and isotype) and their storage sites are indicated. The decorativeness of the new form allows us to recommend it for gardening in culture in St. Petersburg and other cities of the North-West of the European part of Russia, as well as the species itself, which is well adapted in the region. The article is illustrated with 3 photos and a map.


2021 ◽  
Vol 4 (4) ◽  
pp. 3-6
Author(s):  
Alexey S. Sazhnev ◽  
Dmitry V. Vlasov ◽  
Aleksander A. Rusinov ◽  
Viktor D. Titov

The paper gives information on the invasion of Harmonia axyridis (Pallas, 1773) (Coleoptera: Coccinellidae) into the north of the European part of Russia. The Asian ladybird is recorded for the first time from the Novgorod and Yaroslavl Regions. All records of this alien species from European Russia and the Northern Caucasus are listed.


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