Long-Term Impacts of Land Use Change Upon the Natural Flood Storage Reservoirs Along the North Bulgarian Black Sea Coast

2021 ◽  
Author(s):  
Iliyan Kotsev ◽  
Bogdan Prodanov ◽  
Radoslava Bekova
Author(s):  
Katina Popova ◽  
◽  
Miroslava Malcheva ◽  

Tourism in Bulgaria is a cross cutting sector of particular importance for unemployment and poverty eradication. As a source of foreign exchange earnings and direct investments it ensures viable medium and long-term economic benefits for both the destination and the local community. In recent years, the sustainable development of tourism on the Bulgarian Black Sea coast is seriously threatened, mainly due to the consequences of mass sea tourism, the short-sighted use of available resources and the territorial concentration of accommodation facilities. The aim of the present study is to establish the achievements of the hospitality business on the Bulgarian Black Sea coast in terms of sustainability and environmentally friendly lifestyle.


Author(s):  
B. N. Panov ◽  
E. O. Spiridonova ◽  
◽  

Russian fishermen harvest European anchovy primarily off the Black Sea coast of the Krasnodar Territory during its wintering and wintering migrations. At wintering grounds, temperature conditions become a secondary factor in determining the behaviour of commercial concentration of European anchovy, with wind and currents being the primary factors. Therefore, the aim of this work is to determine the potential use of daily data on water circulation and local atmospheric transport in short-term (1–7 days) forecasting of European anchovy fishing in the Black Sea. The research used the European anchovy fishery monitoring materials for January – March 2019, as well as daily maps of the Black and Azov Seas level anomalies (from satellite altimetry data) and surface atmospheric pressure and temperature in Europe (analysis) for the mentioned period. The dynamics of the catch rate and its relation to altimetry and atmospheric transport indicators in the north-eastern part of the Black Sea were investigated using graphical and correlation methods. This analysis showed that the main factor contributing to increased catches is intensification of northwest currents in the coastal 60-km zone. The effect of atmospheric transport on fishing efficiency depends on the mesoscale eddy structure of the nearshore current field. In the presence of an intense northwest current in the fishing area, southwest atmospheric transports have a positive effect on fishing, while in the presence of an anticyclonic meander of currents, northeast atmospheric transports become effective. The presence of maximum significant relationships when the determinants of fishing performance are shifted by 1–7 days allows making short-term predictions of fishing efficiency.


2018 ◽  
Vol 931 ◽  
pp. 790-796
Author(s):  
Viktoria V. Pishchulina

A one-apsidal hall church is always a reflection of so-called “vulgar” Christianity, thus revealing the important peculiarities of the spatial culture of the region where it is erected. In this region we can mark two periods when such temples were built: VI-VII c. and X-XII c. The first period is associated with the missionary activity by Byzantine Empire, Antioch, Caucasian Albania which was conditioned by both geopolitical interests (Byzantian Empire, Antioch) and the shift of The Great Silk Way to the north (Caucasian Albania). The second, as the research has shown, is connected with the migration of the peoples of Abkhazia, the abzakhs to this territory in the XII-XIII c. and the development of contacts with the Crimea. In the North Black Sea Region the one-apsidal hall church appears as early as in the VI c. – in the territory of Abkhazia we know about ten such temples. The temples of this type in the area of Big Sochi are dated back to the VII-VIII c. In the first Abhzaian temples we can reveal the influence of denominational centers – Byzantian Empire, Antioch, Caucasian Albania. In the temples of the Black Sea coast of both periods – introduction of the samples from Abkhazia.


Author(s):  
I.Y. Matasova ◽  

The article considers the results of studying the features of Sr distribution in rocks of various ages and composition and soils of landscapes of the Black Sea coast of Russia (in the humus horizon and soil profile). The content of elements in the studied soils is compared with the regional background for the soils of the North Caucasus. A direct relationship between the content of the element in soils and underlying rocks, as well as the influence of technogenesis on the processes of accumulation and removal of the element in the soils of agricultural landscapes, has been revealed. The results of a comprehensive study of the south of Russia became the basis for studying the peculiarities of the distribution of Sr landscapes of the Black Sea coast of Russia. To establish the main parameters of the distribution of chemical elements in rocks and soils of various landscapes and the region as a whole, to identify geochemical features of geographical and technogenic differentiation, to assess the impact of various types of environmental management on changes in the geochemical spectrum of soils, to determine the influence of landscape-forming factors on the migration of chemical elements and the formation of geochemical barriers. The highest concentration of Sr was observed in carbonate-terrigenous rocks of the Paleogene and Cretaceous ages (marls and limestones). In the humus horizon of soils, the average metal concentrations vary in the range from 13.0∙10–3 to 95.0∙10–3 % with a regional clark of 22.0∙10–3 %.


2015 ◽  
Vol 20 (1) ◽  
pp. 78-141
Author(s):  
Viktor I. Klochko ◽  
Aleksander Kośko ◽  
Serhiy M. Razumov ◽  
Piotr Włodarczak ◽  
Danuta Żurkiewicz

Abstract The paper presents the results of excavations and analytical studies regarding the taxonomic classification of a funeral site associated with the societies of ‘barrow cultures’ of the north-western Black Sea Coast in the first half of the 3rd and the middle of the 2nd millennium BC. The study discusses the ceremonial centres of the Eneolithic, Yamnaya and Noua cultures.


Algologia ◽  
2018 ◽  
Vol 28 (2) ◽  
pp. 169-181
Author(s):  
V.P. Gerasimiuk ◽  

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