scholarly journals ASSESSMENT OF CHANGES IN CLIMATE-BASED PRODUCTIVITY OF SUMMER WHEAT IN THE MAIN REGIONS OF ITS CULTIVATION IN RUSSIA

2020 ◽  
Vol 4 ◽  
pp. 68-87
Author(s):  
V.N. Pavlova ◽  
Keyword(s):  
Spring Wheat ◽  
Meteorological Data ◽  
Far East ◽  
Vegetation Period ◽  
European Part ◽  
South Eastern ◽  
The North ◽  
European Part Of Russia ◽  
The Impact ◽  
Agroclimatic Resources

Agroclimatic resources in the main agricultural regions of Russia are changing at a substantial pace. The authors analyze the impact of these changes on the productivity of spring wheat with the technological trend excluded. This climate-based productivity was calculated via the Climate-Soil-Yield (CSY) simulation system with use of meteorological data from 315 observation points in the Roshydromet network for the period from 1976 to 2015. Provided evidence indicates the adequacy of this productivity modeling in the CSY system over a vast territory of the agricultural zone of Russia. Estimates of trends in agroclimatic indicators and climate-based productivity in the main grain-producing regions over the past four decades have been obtained. It is demonstrated that the average increase in air temperature during the vegetation period of spring wheat in 2006-2015 compared to 1976-1985 was from 1.6 to 2.3 °C in the North-Western regions of the European part (EP) of Russia and from 1.0 to 1.3 °C in the central and southern regions. The deficit of available water resources was especially pronounced in the main areas of spring wheat cultivation in the southern and South-Eastern regions of the EP of Russia. Analysis of trends in climate-based productivity of spring wheat by decades indicates different productivity responses to changes in agroclimatic resources in northern and southern regions of its growth. Over the period from 2006 to 2015, relative to 1961-1990, climate-based productivity decreased by 25-30 % in southern and south-eastern parts of European part of Russia and by 10 % in Eastern Siberia and the Far East. In the Urals and Western Siberia, the decrease of climate-based productivity is minor and ranges from 3 to 5 %. In Russia as a whole, trends towards warming caused a drop in the climate-based productivity of spring wheat by approximately 12 % from 1976 to 2015, i. e. the rate of its decline amounted to ~3 % per decade.

Аquatic and helophytic vegetation of the Yamozero Lake (The Komi Republic)

2011 ◽  
pp. 101-116 ◽  
Author(s):  
B. Yu. Teteryuk
Keyword(s):  
Eastern Europe ◽  
Plant Communities ◽  
Rare Species ◽  
Komi Republic ◽  
European Part ◽  
Regional Level ◽  
North East ◽  
The North ◽  
European Part Of Russia ◽  
Floristic Classification

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.

scholarly journals Hydrographic and erosional dissection pattern as an indicator of landform type of the Malozemelskaya and Bolshezemelskaya Tundra

2020 ◽  
Vol 163 ◽  
pp. 04003
Author(s):  
Sergey Kharchenko ◽  
Yury Belyaev
Keyword(s):  
Spectral Characteristics ◽  
European Part ◽  
Hilly Terrain ◽  
The North ◽  
European Part Of Russia

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.

DISTRIBUTION OF TEMPERATURE INDICES OF EXTREME IN THE TERRITORY OF THE EUROPEAN PART OF RUSSIA IN THE PERIOD 1980-2019

2021 ◽  
Vol 31 (4) ◽  
pp. 437-442
Author(s):  
V.V. Guryanov ◽  
A.K. Sungatullin
Keyword(s):  
Temporal Variability ◽  
Statistical Processing ◽  
European Part ◽  
The North ◽  
Hourly Data ◽  
European Part Of Russia ◽  
Spatial Grid ◽  
Temperature Indices ◽  
Spatio Temporal ◽  
Maximum Temperatures

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.

scholarly journals New records of megachilid bees (Hymenoptera: Megachilidae) from the North Caucasus and the south of European Russia

2020 ◽  
Vol 16 (2) ◽  
pp. 225-331
Author(s):  
A.V. Fateryga ◽  
◽  
M.Yu. Proshchalykin ◽  
Keyword(s):  
New Records ◽  
Distinct Species ◽  
European Part ◽  
European Russia ◽  
North Caucasus ◽  
The South ◽  
The North ◽  
The Family ◽  
European Part Of Russia ◽  
South Of European Russia

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.

Towards a better assessment of the historical climate of Extremadura region (SW Spain)

2020 ◽  
Author(s):  
José Manuel Vaquero ◽  
María Cruz Gallego ◽  
Víctor M. S. Carrasco ◽  
Nieves Bravo-Paredes ◽  
María Ángeles Obregón ◽  
...  
Keyword(s):  
Meteorological Data ◽  
Main Task ◽  
Winter Climate ◽  
Historical Climate ◽  
The North ◽  
Nao Index ◽  
Dry Conditions ◽  
Good Proxy ◽  
The North Atlantic Oscillation ◽  
The Impact

<p>Our efforts to a better understanding of the historical climate of the region of Extremadura (interior of the SW Iberia) have been directed in two main aspects. First, we have tried to recover all the meteorological data of the pre-instrumental period. Second, we have been working on the localization and analysis of proxy data, including “pro-pluvia” rogation ceremonies and a chronology of catastrophic floods in this region.</p><p>The recovery of historical meteorological data from libraries and archives and the subsequent digitization to obtain readable-machine version has been a main task in our research. Meteorological data from different sources (manuscripts, books, newspapers, etc.) and eight different locations in Extremadura have been recovered and digitized. The oldest data were read in 1824 (Fernández-Fernández et al., 2014). Other important meteorological series can be highlighted as the actinometric measurements in Cáceres for the period 1913-1920 (Bravo-Paredes et al., 2019).</p><p>“Pro-pluvia” rogations were celebrated during dry conditions to ask God for rain. In our case, 35 “pro-pluvia” rogations were retrieved for the period 1824-1931 from different locations in Extremadura. The winter climate of this region is strongly dominated by the North Atlantic Oscillation (NAO) and, therefore, these pro-pluvia rogations were associated to the NAO index to analyze this relationship. The results of our analysis show that the rogation ceremonies in Extremadura can be considered a good proxy for the NAO index. Also, it is important to know the magnitude and the impact of the catastrophic floods occurred in Extremadura. In total, 40 floods occurred in Badajoz were recovered from different documentary sources for the period 1545-1989.</p><p>All these research efforts will allow for a better understanding of the past climate in the region of Extremadura, where such studies have been very scarce.</p><p>References</p><p>Bravo-Paredes, N. et al. (2019) “Analysis of actinometric measurements under different sky conditions in Cáceres (Spain) for the period 1913-1920” Tellus B 71, 1663597. DOI: 10.1080/16000889.2019.1663597</p><p>Fernández-Fernández, M.I. et al. (2014) "The climate of Zafra from 1750 to 1840: History and description of weather observations" Climatic Change 126, 107–118. (doi: 10.1007/s10584-014-1201-5)</p>

scholarly journals Estimation of evapotranspiration rate by using the Penman–Monteith and Hargreaves formulas for the loess in Northeast Bulgaria complex with HYDRUS-1D

2019 ◽  
Vol 48 (3) ◽  
pp. 3-9
Author(s):  
Peter Gerginov ◽  
Dimitar Antonov
Keyword(s):  
Potential Evapotranspiration ◽  
Meteorological Data ◽  
Danube River ◽  
Near Surface ◽  
The North ◽  
Evapotranspiration Rate ◽  
Scientific Project ◽  
Unsaturated Zones ◽  
The Impact ◽  
Hydrus 1D

Loess and loess-like sediments cover approximately 13% of the Bulgarian territory, mainly within the Danubian plain. From the Danube River to the Fore-Balkan, the loess soils form a loess complex where its depth varies from 50–60 meters in the north to few meters in the south, respectively. Widespread loess sediments possess a specific feature: they typically form deep unsaturated zones. Quantification of the near surface water balance is extremely important for evaluating land-atmosphere interactions, and the impact of land-use change on the subsurface flow and the evapotranspiration rate is an essential term in this quantification. In the frames of a scientific project, an automatic weather station was installed in a typical plain terrain of the loess complex in Northeast Bulgaria, recording meteorological data from September 2015 to February 2017. This study provides a mathematical description of processes (i.e., Penman-Monteith and Hargreaves Methods) used to estimate daily evapotranspiration rates implemented into the numerical model HYDRUS-1D, as well as a respective rate investigation of months with and without intensive rainfalls. Overall results indicate that using the Hargreaves formula for evaluation of the potential evapotranspiration leads to overestimation between 10% and 20%, respectively for a “wet” and “dry” month.

scholarly journals Did Alcohol Policy Really Cause the Postsocialist Mortality Crisis? Revisiting the Rebound and Affordability Hypotheses

2021 ◽  
Author(s):  
Aytalina Azarova ◽  
Gábor Scheiring ◽  
Michael Ash ◽  
Lawrence King
Keyword(s):  
Far East ◽  
European Part ◽  
Alcohol Policy ◽  
Alcohol Policies ◽  
European Part Of Russia ◽  
Alcohol Prices ◽  
Robust Evidence

This article reexamines the argument that alcohol policies were the major factor behind the mortality crisis in postsocialist Russia. We show that the correlation between the Gorbachev anti-alcohol campaign (rebound hypothesis), alcohol prices in the 1990s (affordability hypothesis), and mortality reported in previous analyses is not robust to splitting oblasts into Far-East and the rest of Russia. Our analysis conducted on a sample of 534 towns in the European part of Russia also finds no robust evidence supporting the two hypotheses. In contrast, findings linking privatization to mortality are robust to controlling for the anti-alcohol campaign and the affordability of alcohol.

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