A Reunification of the Korean Peninsula and East-Asian Regional Solidarity

2016 ◽  
Vol 65 ◽  
pp. 35
Author(s):  
Byung Soo Lee
Keyword(s):  
Korean Peninsula ◽  
East Asian

East Asian Biomes

Ecology ◽  
2013 ◽  
Author(s):  
John MacKinnon
Keyword(s):  
Korean Peninsula ◽  
Forest Ecosystems ◽  
Unique Feature ◽  
Rapid Development ◽  
East Asian ◽  
Entire Region ◽  
Land Area ◽  
Important Species ◽  
Mountain Ranges ◽  
Relic Species

East Asian biomes include the major biological ecosystems that make up the land area of East Asia, specifically China with Taiwan, Mongolia, Japan, and the Korean Peninsula. These vary from northern tundra and boreal to southern tropical and subtropical ecosystems, include several major mountain ranges, and comprise forest ecosystems, grasslands, deserts, and also important wetland systems. One literally outstanding globally unique feature of the region is the Tibetan-Qinghai Plateau, which forms the source of many of Asia’s major rivers and also drives the monsoon climatic patterns of the entire region. The region includes the world’s most populated country, China, and some of the most densely populated areas but also some of the least populated areas of the planet, including Mongolia with the lowest density. The region is unusually rich in both flora and fauna and has many distinctive endemic features and relic species. The biome has been a great source of domesticated species and economically important species but faces severe conservation challenges as a result of rapid development and changing climate.

The Acheulean in Asia?: A Review of Research on Korean Palaeolithic Culture.

1984 ◽  
Vol 50 ◽  
pp. 35-48 ◽  
Author(s):  
William S. Ayres ◽  
Song Nai Rhee
Keyword(s):  
Korean Peninsula ◽  
East Asian ◽  
The Past ◽  
Cultural Phenomenon ◽  
Recent Monograph ◽  
Future Work

A recent monograph written by three prominent Korean archaeologists reports on the results of the past 20 years of research on Korean palaeolithic sites. Discussed are tasks completed, projects underway, and suggestions for future work to be done on palaeolithic remains in the Korean Peninsula. Particularly significant is the chapter on the archaeology of the Jǒngok-ni site which has produced many palaeolithic artefacts; among these the excavators find a high percentage of handaxes and other core bifaces, a cultural phenomenon claimed to be unique in East Asian prehistoric technology.

scholarly journals High Resolution Late-holocene Terrestrial Biomarkers Records in Southern Continental Shelf Area of the Korean Peninsula: Climate and Marine Environmental Implications During the Last 5 Kyr

2020 ◽  
Author(s):  
Sangmin Hyun ◽  
Nayeon Kang ◽  
Jin Hyung Cho
Keyword(s):  
High Resolution ◽  
Continental Shelf ◽  
Korean Peninsula ◽  
Environmental Changes ◽  
East Asian Monsoon ◽  
East Asian ◽  
Average Chain Length ◽  
Shelf Area ◽  
Environmental Implications ◽  
Marine Environmental

Abstract High-resolution records for carbon isotopes of organic matter and n-alkane compounds were investigated in two gravity cores (SJP15-2 and SJP15-4) taken from the southern continental shelf of the Korean peninsula to evaluate the variation in influxes of terrestrial organic compounds and their linkage to paleoclimate and marine environmental changes since the last 5 kyr. The total organic carbon contents were < 1%, and the carbon isotope(d13Corg) ratio ranged from approximately −21‰ to -22‰ and, they did not highly fluctuate throughout the two cores. However, the vertical distributions of total terrestrial biomarkers, long-chain n-alkanes (nC25-35), and individual n-alkane compounds exhibited distinctive fluctuations. There are three switching points that discriminate patterns of excursion and distribution at ca. 4.5 ka, 3.0 ka, and 1.8 ka. Several n-alkane combined indices such as average chain length (ACL), carbon preference index (CPI), and paleovegetation index (Paq), were coincident with these switching points, implying that the supply of terrestrial biomarkers was strongly associated with environmental changes at the source area. In particular, the ratios of nC31/nC27 and nC31/nC29 show coincident excursion pattern with lower ratio between 3.0 ka and 1.8 ka, implying that this short-term event-like record (STER) was associated with wetter climate conditions, and thus paleovegetation and paleoclimate variation. Comparison with previous data of the detrital quartz from the East China Sea and aeolian dust in the Cheju (Jeju) Island, South Korea, and Dongge cave oxygen isotope records indicates strong synchronicity with those switching points, suggesting that paleoclimate system of the East Asian region may have influenced the sediment records of study area since the last 5 kyr. Therefore, our high-resolution n-alkane data are very useful for reconstructing past climatic records, and East Asian monsoon and regional records could be associated with the paleoclimate variations of the study area.

scholarly journals The relative importance of various source regions on East Asian surface ozone

2010 ◽  
Vol 10 (4) ◽  
pp. 9077-9120 ◽  
Author(s):  
T. Nagashima ◽  
T. Ohara ◽  
K. Sudo ◽  
H. Akimoto
Keyword(s):  
East Asia ◽  
Korean Peninsula ◽  
Transport Model ◽  
Surface Ozone ◽  
East Asian ◽  
Large Contribution ◽  
Chemical Transport Model ◽  
Substantial Impact ◽  
Source Regions ◽  
Surface O3

Abstract. The Source-Receptor (S-R) relationship for surface O3 in East Asia is estimated for recent years in this study utilizing the tagged tracer method with a global chemical transport model. The estimation shows the importance of intra-continental transport of O3 inside East Asia as well as the transport of O3 from distant source regions. The model well simulated the absolute concentration and seasonal variation of surface O3 in the East Asian region, and demonstrated significant seasonal difference in the origin of surface O3. More than half of surface O3 is attributable to the O3 transported from distant sources outside of East Asia in the cold season (October to March). In the warm season (April to September), most of the surface O3 is attributed to O3 created within East Asia in most areas of East Asia. The contribution of domestically-created O3 accounts for 20% of surface O3 in Japan and the Korean Peninsula, 40% in North China Plain and around 50% in the southern part of China in spring, which increase greatly in summer. The contribution of China and the Korean Peninsula to Japan are estimated at about 10% and 5%, respectively. A large contribution (20%) of China to the Korean Peninsula is also demonstrated. In the northern and southern part of China, large contribution of over 10% from East Siberia and the Indochina Peninsula are identified, respectively. The contribution of intercontinental transport increases with latitude; it is 21% in Northeast China and 13% in Japan and the Korean Peninsula in spring. As for one-hourly mean surface O3, domestically-created O3 is the main contributor in most areas of East Asia, except for the low O3 class (<30 ppbv), and accounts for more than 50% in very high O3 class (>90 ppbv). The mean relative contribution of China to central Japan was about 10% in every class, but that from the Korean Peninsula is important in all expect the low O3 class. Substantial impact of foreign sources on the exceedance of Japan's AAQS is identified in the high O3 class (60–90 ppbv) in spring.

East Asia and Foreign Policy

2017 ◽  
Author(s):  
Enyu Zhang ◽  
Qingmin Zhang
Keyword(s):  
Foreign Policy ◽  
Cold War ◽  
East Asia ◽  
Korean Peninsula ◽  
East Asian ◽  
The United States ◽  
Foreign Policy Analysis ◽  
Foreign Policies ◽  
The Taiwan Strait ◽  
The Cold War

The study of East Asian foreign policies has progressed in sync with mainstream international relations (IR) theories: (1) from perhaps an inadvertent or unconscious coincidence with realism during the Cold War to consciously using different theoretical tools to study the various aspects of East Asian foreign policies; and (2) from the dominance of realism to a diversity of theories in studying East Asian foreign policies. Nonetheless, the old issues from the Cold War have not been resolved; the Korean Peninsula and the Taiwan Strait remain two flashpoints in the region, with new twists that can derail regional stability and prosperity. New issues also have emerged and made East Asia most volatile. One issue is concerned with restructuring the balance of power in East Asia, particularly the dynamics among the major players, i.e. Japan, China, and the United States. Regionalism is another new topic in the study of East Asian foreign policies. A review of the current state of the field suggests that two complementary issues be given priority in the future. First, the foreign policy interests and strategies of individual small states vis-à-vis great powers in the region, particularly those in Southeast Asia and the Korean peninsula. Second, what could really elevate the study of East Asian foreign policies in the general field of IR and foreign policy analysis is to continue exploring innovative analytical frameworks that can expand the boundaries of existing metatheories and paradigms.

scholarly journals Tectonometamorphic evolution of collisional orogenic belts in the Korean Peninsula: Implications for East Asian tectonics

1970 ◽  
Vol 5 (7) ◽  
pp. 40
Author(s):  
Moonsup Cho
Keyword(s):  
Korean Peninsula ◽  
East Asian ◽  
Special Issue ◽  
Orogenic Belts

DOI = 10.3126/hjs.v5i7.1245 Himalayan Journal of Sciences Vol.5(7) (Special Issue) 2008 p.40

scholarly journals Phylogeographic and population insights of the Asian common toad (Bufo gargarizans) in Korea and China: population isolation and expansions as response to the ice ages

PeerJ ◽  
2017 ◽  
Vol 5 ◽  
pp. e4044 ◽  
Author(s):  
Amaël Borzée ◽  
Joana L. Santos ◽  
Santiago Sánchez-RamÍrez ◽  
Yoonhyuk Bae ◽  
Kyongman Heo ◽  
...  
Keyword(s):  
Sea Level ◽  
Yellow Sea ◽  
Korean Peninsula ◽  
East Asian ◽  
Population Expansion ◽  
The Yellow Sea ◽  
Ice Ages ◽  
Common Toad ◽  
North East ◽  
Bufo Gargarizans

The effects of ice ages on speciation have been well documented for many European and North American taxa. In contrast, very few studies have addressed the consequences of such environmental and topographical changes in North East Asian species. More precisely, the Korean Peninsula offers a unique model to assess patterns and processes of speciation as it hosts the northern- and eastern-most distribution limit of some widespread Asian taxa. Despite this, studies addressing phylogeographic patterns and population genetics in the peninsula and surrounding countries are few and studies for most families are lacking. Here we inferred the phylogenetic relationships of the common toad (Bufo gargarizans) from South Korea and their North East Asian counterpart populations, based on mitochondrial data. KoreanB. gargarizansGenBank BLASTs matched few individuals from nearby China, but the presence of a Korean clade suggests isolation on the Korean Peninsula, previous to the last glacial maximum, linked to sea level resurgence. Molecular clock calibrations within this group were used to date the divergence between clades and their relationship to paleo-climatic events in the area. Lack of genetic structure among South Korean populations and strong homogeneity between the Korean and some Chinese localities suggest weak isolation and recent expansion. Geographical projection of continuous coalescent maximum-clade-credibility trees shows an original Chinese expansion towards the Korean Peninsula through the Yellow Sea circa two million years ago with colonisation events dating circa 800 thousand years ago (K. y. a.). Following this colonisation, the data point to outgoing Korean Peninsula dispersal events throughout different periods, towards the North through land, and West through land bridge formations over the Yellow Sea during sea level falls. In accordance, demographic analyses revealed a population expansion in the Koran Peninsula circa 300 K. y. a., likely attributed to glacial cycle fluctuations.

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