scholarly journals Paleogeographical Researches in Pacific Geographical Institute

2021 ◽  
pp. 15-32
Author(s):  
Н.Г. Разжигаева ◽  
Л.А. Ганзей ◽  
Т.А. Гребенникова ◽  
В.Б. Базарова ◽  
П.С. Белянин ◽  
...  

Представлены результаты работы лаборатории палеогеографии и геоморфологии ТИГ ДВО РАН в 2017–2020 гг. Приведены новые данные по изучению развития материковых и островных геосистем юга Дальнего Востока и реакции их компонентов на короткопериодные климатические изменения позднего плейстоцена–голоцена. Палеоэкологические изменения с высоким временным разрешением восстановлены в среднегорье Восточного Сихотэ-Алиня. Новые данные получены по развитию геосистем побережья Японского моря, определена роль зональных и азональных природных факторов в их развитии. Выделены этапы развития ландшафтов платобазальтового рода. Реконструированы обстановки осадконакопления и формирования пойменных ландшафтов Приханкайской равнины. Сделаны детальные реконструкции хода развития островных ландшафтов для юга Приморья. Для юга Дальнего Востока проведен синтез изменений ландшафтов в последнее интенсивное потепление – малый оптимум голоцена (VII–XIII вв.). Проанализировано проявление природных катастроф и их пространственно-временной масштаб. Продолжены работы, направленные на оценку цунамиопасности на побережье восточного Приморья. Для Курильских островов выделены наиболее сильные цунами, которые могут быть рассмотрены как кандидаты в мегацунами. Внимание уделено трансформации ландшафтов при освоении территории юга Дальнего Востока древним человеком. Геоархеологические исследования проводились также во внутриконтинентальных районах (Западное Забайкалье, Восточная Монголия). The authors present the results of the researches of the laboratory of paleogeography and geomorphology of PGI FEB RAS in 2017–2020. New data include the study of the development of continental and island geosystems of the South Far East and the response of their components to short-term climate changes in the Late Pleistocene-Holocene. Paleoecological changes with a high temporal resolution have been restored in the middle mountains of the Eastern Sikhote-Alin. New data were obtained on the development of geosystems of the coast of the Sea of Japan, the role of zonal and azonal natural factors in their development was determined. The stages of development of landscapes of the platobasalt genus are highlighted. The conditions of sedimentation and formation of floodplain landscapes of the Khanka Lake plain were reconstructed. Detailed reconstructions of the island landscapes development for the south of Primorye have been made. For the south of the Far East, a synthesis of landscape changes in the last intense warming – Medieval Warm Period of the Holocene (VII-XIII centuries) was made. The manifestation of natural disasters and their space-time scale were analyzed. The investigations aimed at assessment of the tsunami hazard on the coast of eastern Primorye were continued. For the Kuril Islands, the most powerful tsunamis have been identified, which can be considered as candidates for megatsunami. Transformation of landscapes and a human impact on landscapes were also discussed. Geoarchaeological studies were also carried out in the intra-continental regions (Western Transbaikalia, Eastern Mongolia).

Human Ecology ◽  
2020 ◽  
pp. 58-64
Author(s):  
V. A. Lubova ◽  
G. N. Leonova ◽  
A. L. Shutikova
Keyword(s):  
Far East ◽  

Factors causing global degradation of coral reefs are examined briefly as a basis for predicting the likely consequences of increases in these factors. The earlier consensus was that widespread but localized damage from natural factors such as storms, and direct anthropogenic effects such as increased sedimentation, pollution and exploitation, posed the largest immediate threat to coral reefs. Now truly global factors associated with accelerating Global Climate Change are either damaging coral reefs or have the potential to inflict greater damage in the immediate future: e.g. increases in coral bleaching and mortality, and reductions in coral calcification due to changes in sea-water chemistry with increasing carbon dioxide concentrations. Rises in sea level will probably disrupt human communities and their cultures by making coral cays uninhabitable, whereas coral reefs will sustain minimal damage from the rise in sea level. The short-term (decades) prognosis is indeed grim, with major reductions almost certain in the extent and biodiversity of coral reefs, and severe disruptions to cultures and economies dependent on reef resources. The long-term (centuries to millennia) prognosis is more encouraging because coral reefs have remarkable resilience to severe disruption and will probably show this resilience in the future when climate changes either stabilize or reverse.


2012 ◽  
Vol 45 (1-2) ◽  
pp. 193-200 ◽  
Author(s):  
Licínia Simão

This article looks at the interdependences between the democratisation processes in Armenia, Azerbaijan and Nagorno-Karabakh and the management of the Karabakh conflict, focussing on the EU’s democracy promotion policies. The article argues that the EU’s normative foreign policy in the South Caucasus has been limited by the permanence of the protracted conflicts, in two interrelated ways. First, by not addressing the conflicts the EU focused on long-term goals but failed to provide short-term incentives towards peace. Second, by allowing only a limited involvement in the protracted conflicts, especially inside Karabakh, the EU was perceived as a reluctant partner, undermining its normative credentials.


2021 ◽  
Vol 3 (1) ◽  
pp. 5-34
Author(s):  
Jie Gao

Abstract China and Britain both found themselves in extremely precarious situations by the early summer of 1940, when Japan demanded that Britain close the Burma Road, a vital overland supply route for Chinese forces fighting against Japanese aggression. The British had just seen all of their continental European allies fall like dominoes to Hitler’s forces over the span of a few weeks, while China was fighting a losing defensive war against Japan with minimal outside support. China desperately needed to maintain its overland supply line to the British Empire, the Burma Road, but Britain feared that the very existence of this conduit of war materiel would provoke a Japanese attack on vulnerable British colonies in the Far East. American policy on Japanese aggression was ambiguous at this point and neither Britain nor China could realistically expect help from Washington in the short term. As a result, Britain signed a one-sided confidential memorandum to close the Burma Road to buy time and shore up its East Asian position to the extent that it was able. This deal, a lesser-studied counterpart to Prime Minister Neville Chamberlain’s appeasement policy in Europe, compromised the Chinese war effort against Japan, paved the way for the Japanese conquest of Southeast Asia, and ultimately failed to prevent Britain’s defeat in East Asia. Recognizing that this temporary concession would not moderate Japanese behavior, Britain reopened the Burma Road three months later. This paper examines the vital role of the Burma Road in the Chinese war effort in 1940 and why Japan demanded that London close it, then explores the factors that led to Britain’s unavoidable capitulation on the issue and subsequent reversal three months later, along with the consequences for the Allied war effort in the Far East.


Author(s):  
P. S. Belyanin ◽  
P. M. Anderson ◽  
N. I. Belyanina ◽  
A. V. Lozhkin ◽  
Kh. A. Arslanov ◽  
...  

The results of biostratigraphic analysis of bottom sediments of the Karas’e, Utinoe, Krugloe lakes as well as loose sediments of accumulative plains at the mouths of the Tumannaya and Poima rivers in the south of the Far East are presented. Natural conditions were recovered and periodicity of vegetation changes in the foothills of the East Manchurian Mountains and in the coastal plains of the Peter the Great Bay in the Middle and Late Holocene were reconstructed by the complex of data. The synchronicity of both the development of vegetation formations and changes of sedimentation conditions with global climatic variations were revealed. The first, Middle Holocene stage proceeded in the conditions of general planetary increase of average annual temperatures, accompanied by flooding of lowland plains of the coast of the Sea of Japan by sea waters. The distribution and species diversity of broad-leaved plants in spurs of the East Manchurian Mountains increased. In the Holocene Optimum, the polydominant forests with richer composition of species than that of the present time were formed and vegetation on the foothill accumulative plains was represented with sedge and mixed meadows. The second, Late Holocene stage was characterized by a decrease in average annual temperatures and series of climatic changes. Its beginning was marked by the cooling, during which the coastal lowlands were freed from sea waters. Climate deterioration caused expansion of dark coniferous and small-leaved plants in the East Manchurian Mountains, as well as reduction of polydominant forests. On the foothills near the coast of the Peter the Great Bay sedge meadows were developed, sometimes there were thickets of shrubby birch (Betula sect. Nanae) and sphagnum swamps. At the end of the Late Holocene the warming occurred again. On the slopes of the East Manchurian Mountains, the vegetation formations with the dominance of Mongolian oak (Quercus mongolica Fisch. ex Ledeb.) and dentate oak (Quercus dentataThunb.), needle fir (Abies holophylla Maxim.), Korean pine (Pinus koraiensis Siеbold et Zucc.) and with the presence of birches began to dominate. The dissemination of pine (Pinus densiflora Siebold et Zucc.), elm (Ulmus sp.), hornbeam (Carpinus cordata Blume) and maple (Acer sp.) has increased. On the foothill lowlands the sedge-reed meadows with different grass dominated.


Author(s):  
Kira Privalova ◽  
Ruslan Karimov

The studies for the period 2004–2017, he reveals a high energy potential of pasture herbage technologies, created on the basis of domestic varieties of Festulolium VIK 90 at 6-and 14-year-old terms of use. The ratio of anthropogenic and natural factors in the production of pasture feed is given. At the same time, the leading role of renewable natural factors has been revealed: they account for 66–71% of the structure of metabolic energy production.


1968 ◽  
Vol 78 (3, Pt.1) ◽  
pp. 494-501 ◽  
Author(s):  
Calvin F. Nodine ◽  
James H. Korn

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