scholarly journals Aeolian Material Migration in Transbaikalia (Asian Russia)

Geosciences ◽  
2019 ◽  
Vol 9 (1) ◽  
pp. 41 ◽  
Author(s):  
Olga Bazhenova ◽  
Dmitrii Kobylkin ◽  
Elizaveta Tyumentseva

We revealed regional features of functioning of a large Transbaikalian aeolian morphodynamic system. Natural pre-conditions, current realities and factors of development of aeolian processes are investigated. The paper considers regularities of spatial distribution of deflation, transit, and aeolian accumulation zones. Main directions of aeolian migration of matter are determined. Pulsating nature of aeolian processes development in Holocene has been established. Identified are intrasecular cycles and Holocene dynamics of aeolian processes. We identified intrasecular (11, 27–35 years old), secular (80 year old) and Holocene (500, 2000 year old) cycles of aeolian process dynamics. The paper shows the influence of anthropogenic activity on the activation of aeolian migration of material for the historical period. It presents an overview of extreme aeolian events. Regionalization of Transbaikalia was carried out according to the degree of probable desertification of the territory due to development of aeolian processes. Areas of catastrophic manifestation of processes are highlighted. The results of long-term experimental observations of deflation and aeolian accumulation are presented. Particular attention is paid to the characteristics of the aeolian corridors. The important role of aeolian processes in the intensive material transport from Transbaikalia to the south and southeast to neighboring regions of Mongolia and China is shown.

1999 ◽  
Vol 27 (1) ◽  
pp. 41-53 ◽  
Author(s):  
Ananda Rajah

AbstractThis paper questions the utility of traditional depictions of Southeast Asia as a region in terms of cultural criteria. These depictions, are essentialized characterizations and to the extent that they are directed at identifying Southeast Asia as a region, they reflect comparatist errors. It is argued that the central issue is not how Southeast Asia can or cannot be depicted as a region but, rather, conceptualizing regions and regionness as human constructs. Such an approach requires a focus on interactions instead of identity. From this perspective, regions may be seen as interpenetrated systems, both in a global sense and in sub-regional terms. Interpenetration is seen in terms of interactions of varying intensity and density centering on structures of interest which may be competitive or complementary and where the role of brokers and broker institutions are pivotal. Accordingly, from a long-term human historical perspective, endogenous experiences of region and regionness may well be regarded as variable phenomena depending on the structures of interest and the part played by brokers and broker institutions in any given historical period.


2019 ◽  
Author(s):  
Craig Smeaton ◽  
Xingqian Cui ◽  
Thomas S. Bianchi ◽  
Alix G. Cage ◽  
John A. Howe ◽  
...  

Abstract. Fjord sediments are recognized as hotspots for the burial and storage of organic carbon, yet little is known about what drives the formation of these coastal carbon stores and how this has altered over time. Here we show that fjords can act as sustained hotspots for carbon burial and storage over Holocene timescales. Further we investigate the role of North Atlantic climate and humans in the evolution of a coastal carbon store using sediment records from a temperate Scottish fjord. Our findings indicate that climate and anthropogenic activity have independently driven increases in terrestrial carbon to the marine environment. When both these drivers were coupled, the terrestrial response was pronounced and the relative proportion of terrestrial OC in the marine sediments increases from 5 % up to 70 %. We hypothesize that sustained human disturbance through the late Holocene sensitized the catchment to abrupt climate reorganizations. The results highlight the importance of fjords for carbon burial and the significance of terrestrial carbon subsidy to the long-term carbon store.


2020 ◽  
Vol 8 (1) ◽  
pp. 57-80
Author(s):  
Armen B Avagyan

Our theory includes generalized explanations of how nature works, confirmed by pieces of evidence, cover predictions for further technological developments towards economically and environmentally sustainable industrial processes as well as provides the role of bioenergy accumulation and transformation for improved understanding about evolution, influences of anthropogenic activity, decision-makers errors, technological choices, pandemics prevention and the necessary skills toward the innovation algae-based system. The possibility of origination and evolution of the landforms of life were the results of bioenergy accumulation by microalgae and at present, the contribution of algae remains dominant in reducing CO2 and maintaining O2 level in the atmosphere. Population growth stimulates the accumulation of air carbon and bioenergy. The production and application of fertilizers originated large GHG emissions and it is a big conceptual need to shift on organic agriculture including algae fertilization of soil to contribute long-term sustainability. The used technologies for 1G biofuels production, as well as microalgae to biofuel based on biomass phototrophic growth by the use of fertilizers, are induced aggressively increasing GHG emission instead of their mitigation. Microalgae biofuel has big potential in case the use of wastewaters and food waste for biomass growth. The priority strategy for dealing with future pandemics treats such as COVID-19, etc. must be increasing the stability of immunity system of humans and animals to infections and due to a high concentration of physiologically active compounds in microalgae they application can be the best decision. Analyses of the Kyoto Protocol, Paris Climate Agreement, etc. results provide that their application has many disadvantages. The New policy must be founded on the admitting of the Life Conserve industry as the new part of the production. Keywords: bioenergy, biofuel, environmental policy evaluation, evolution, climate change, Malthusian theory, microalgae, agriculture, pandemics, waste


2013 ◽  
Author(s):  
Francesca Menegazzo ◽  
Melissa Rosa Rizzotto ◽  
Martina Bua ◽  
Luisa Pinello ◽  
Elisabetta Tono ◽  
...  

2014 ◽  
pp. 30-52 ◽  
Author(s):  
L. Grigoryev ◽  
E. Buryak ◽  
A. Golyashev

The Ukrainian socio-economic crisis has been developing for years and resulted in the open socio-political turmoil and armed conflict. The Ukrainian population didn’t meet objectives of the post-Soviet transformation, and people were disillusioned for years, losing trust in the state and the Future. The role of workers’ remittances in the Ukrainian economy is underestimated, since the personal consumption and stability depend strongly on them. Social inequality, oligarchic control of key national assets contributed to instability as well as regional disparity, aggravated by identity differences. Economic growth is slow due to a long-term underinvestment, and prospects of improvement are dependent on some difficult institutional reforms, macro stability, open external markets and the elites’ consensus. Recovering after socio-economic and political crisis will need not merely time, but also governance quality improvement, institutions reform, the investment climate revival - that can be attributed as the second transformation in Ukraine.


2006 ◽  
pp. 4-19 ◽  
Author(s):  
L. Abalkin

The article covers unified issues of the long-term strategy development, the role of science as well as democracy development in present-day Russia. The problems of budget proficit, the Stabilization Fund issues, implementation of the adopted national projects, an increasing role of regions in strengthening the integrity and prosperity of the country are analyzed. The author reveals that the protection of businessmen and citizens from the all-embracing power of bureaucrats is the crucial condition of democratization of the society. Global trends of the world development and expert functions of the Russian science are presented as well.


2013 ◽  
pp. 143-155
Author(s):  
A. Klepach ◽  
G. Kuranov

The role of the prominent Soviet economist, academician A. Anchishkin (1933—1987), whose 80th birth anniversary we celebrate this year, in the development of ideas and formation of economic forecasting in the country at the time when the directive planning acted as a leading tool of economic management is explored in the article. Besides, Anchishkin’s special role is noted in developing a comprehensive program of scientific and technical progress, an information basis for working out long-term forecasts of the country’s development, moreover, his contribution to the creation of long-term forecasting methodology and improvement of the statistical basis for economic analysis and economic planning. The authors show that social and economic forecasting in the period after 1991, which has undertaken a number of functions of economic planning, has largely relied on further development of Anchishkin’s ideas, at the same time responding to new challenges for the Russian economy development during its entry into the world economic system.


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