• Title/Summary/Keyword: southeastern Korea

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Transmissible Gastroenteritis of Pigs in South Eastern Korea in 1992~3 : Prevalence and Factors Associated With Infection (영남지방에서 1992~3년에 유행한 돼지 전염성 위장염의 역학적 특성)

  • Kim Bong-Hwan;cho Kwang-Hyun;Kwon Hae-Byung
    • Journal of the korean veterinary medical association
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    • v.33 no.2
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    • pp.90-100
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    • 1997
  • Outbreaks of transmissible gastroenteritis(TGE) in 52 farrow-to-finish farms in southeastern part of Korea(Youngnam district) were investigated during the period from November, 1992 to April 1993. The disease invariably occurred in so called epizootic for

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Modern diatom seasonal variation records from the bottom sediments of reservoirs, southern area in Korean Peninsula (한반도 남부지역의 저수지에서 계절 변화에 따른 규조류 변화 기록)

  • Young-Suk Bak;Sangheon Yi;Dong Wook Kim;Eunmi Lee;Yongmi Kim;Chang Pyo Jun;Jin Cheul Kim;Han Woo Choi;Moon Sang Shin
    • The Korean Journal of Quaternary Research
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    • v.32 no.1_2
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    • pp.1-29
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    • 2018
  • We investigated the seasonal variation of diatoms from the modern bottom floor sediments of the reservoirs distributed in the southern part of the Korean Peninsula. The studied reservoirs include each three reservoirs from Southeastern part, Central Southern part and Southwestern part, respectively, to compare the dominant diatom assemblages that are ecologically controlled by local environments. In the Southeastern region, Aulacoseira spp., Fragilaria crotonensis, Fragilaria tenera, Gomphonema gracile, G. parvulum and Gyrosigma attenuatum were dominant species. Aulacoseira spp., Cymbella tumida, Cymbella turgidula, Diploneis finnica and Fragilaria crotonensis were dominant taxa in the Central Southern regions. In the southwestern region, Aulacoseira spp., Fragilaria crotonensis, Gomphonema parvulum and Stenopterobia curvular were predominated. Of which Aulacoseira spp. were predominant species at all reservoirs. In addition most of dominants are saproxenous taxa living in the clean water area, and the water quality of these reservoirs is considered to be less polluted water. As a result of seasonal comparison of diatom productivity, the first productivity is higher in summer than in winter. However, diatom valve abundance in the southeastern reservoirs was fewer from the samples collected at May than February.

Size characteristics of the Korean Shelf Sediments (한국근해 퇴적물의 입도분포 특성)

  • 공영세;김승우
    • 한국해양학회지
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    • v.26 no.1
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    • pp.38-46
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    • 1991
  • size data of 1,044 surface sediments from Korean shelf area were compiled and reexamined. Size distribution curves of the sediments are unimodal (31% of the total number), bimodal (54%), or multimodal 915%), Size curves of the sediments and modal subpopulations of the mixed sediments show resemblance to normal curve in shape. The modal mean value shows systematic change along a direction inside the Recent mud belts of the southeastern Yellow Sea and west of Korea Strait. It was found that the areas covered by unimodal sand are minimal value areas of heavy metal and suspended sediment-concentration in the southeastern Yellow Sea and northern East China transport processes during Recent time. It was also found that the mode analysis is useful method to extract information from sediment size data.

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Estimated Advection Heat in the East/Japan Sea

  • Han, In-Seong;Kang, Yong-Q;Kim, Bok-Kee;Seong, Ki-Tack
    • Proceedings of the Korean Environmental Sciences Society Conference
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    • 2003.11a
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    • pp.165-170
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    • 2003
  • A significant surface net heat loss appears around the Kuroshio and the Tsushima Warm Current regions. The area where the surface heat loss occurs should require heat to be supplied by the current to maintain the long-term annual heat balance. Oceanic heat advection in these regions plays an important role in the heat budget. The spatial distribution of the heat supply by the Tsushima Warm Current near the surface was examined by calculating the horizontal heat supply in the surface layer of the East/Japan Sea, directly from historical sea surface temperature and current data. We have also found a simple estimation of the effective vertical scale of heat supply by the current to compensate net heat loss using the heat supplied by the current in the surface 10m layer. The heat supplied by the current for the annual heat balance was large in the Korea/Tsushima Strait and along the Japanese Coast, and was small in the northwestern part of the East/Japan Sea. The amount of heat supplied by the current was large in the northwestern part and small in the southeastern part of the East/Japan Sea. These features suggest that the heat supplied by the Tsushima Warm Current is restricted to near the surface around the northeastern part and extends to a deeper layer around the southeastern part of the East/Japan Sea.

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Adjustment Factors for Family Life of Multi Cultural Family Couples (다문화가정 부부의 가정생활 적응 요인에 대한 연구)

  • Kang, Ki-Jung;Chung, Chun-Seok
    • Journal of Family Resource Management and Policy Review
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    • v.13 no.2
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    • pp.153-167
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    • 2009
  • This research analyzes factors of family life adjustment in mixed-culture families through a focus group and individual interviews with nine mixed-culture couples eighteen people who live in city C. First, the reason that women of other cultures wants to marry Korean men is because they find it a good opportunity, as they expect that Korean husbands will take responsibility of their family. On the other hand, Korean men also expect that they would have some similarities to each other. Also, in southeastern Asian men have more freedom than women to choose an international marriage in Southeastern Asia. Second, mixed-culture couples in everyday life are affected by communication problems, cultural differences, natural environment, financial situation, male -dominant attitude, self-adjustment pressure, house-work role and financial support from their own country. Third, wives from other cultures ask for social support to adjust in Korea and make a healthy family. These women can be important, as they have their own role in the family even though they may be far from their mother in law's strong expectation in how well she can adopt Korean culture.

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From Zomia to Holon: Rivers and Transregional Flows in Mainland Southeastern Asia, 1840-1950

  • Iqbal, Iftekhar
    • SUVANNABHUMI
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    • v.12 no.2
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    • pp.141-155
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    • 2020
  • How might historians secure for the river a larger berth in the recent macro-historical turn? This question cannot find a greater niche than in the emerging critique of the existing spatial configuration of regionalism in mainland Southeastern Asia. The Brahmaputra, Irrawaddy, Salween, Mekong and Yangtze rivers spread out like a necklace around Yunnan and cut across parts of the territories that are known as South, Southeast and East Asia. Each of these rivers has a different topography and fluvial itinerary, giving rise to different political, economic and cultural trajectories. Yet these rivers together form a connected "water-world". These rivers engendered conversations between multi-agentive mobility and large-scale place-making and were at the heart of inter-Asian engagements and integration until the formal end of the European empires. Being both a subject and a sponsor of transregional crossings, the paper argues, these rivers point to the need for a new historical approach that registers the connections between parts of the Southeast Asian massif through to the expansive plain land and the vast coastal rim of the Bay of Bengal and the China Seas. A connection that could be framed through the concept of Holon.

NEW RECORDS OF THREE BENTHIC POLYCHAETOUS ANNELID SPECIES IN KOREA (한국산 다모환충류 3미기록종에 관한 연구)

  • PAIK Eui-In
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.13 no.2
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    • pp.89-92
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    • 1980
  • Examining polychaetous annelids collected from Chinhae Bay in the southeastern part of Korea, I found three species which should be added in the list as new to the polychaetous annelid fauna of Korea. In the present study three species are reported with morphological descriptions. Consquently, it totals 133 species of polychaetous annelids from Korea including those previously reported.

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Distribution and characteristics of Quaternary faults in the coastal area of the southeastern Korean Peninsula: Results from a marine seismic survey (해양 탄성파 탐사 결과로 본 한반도 남동부연안 4기 단층의 분포와 특성)

  • Kim Han-Joon;Jou Hyeong-Tae;Hong Jong-Kuk;Park Gun-Tae;Nam Sang-Heon;Cho Hyun-Moo
    • 한국지구물리탐사학회:학술대회논문집
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    • 2002.09a
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    • pp.46-66
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    • 2002
  • High-resolution multichannel seismic data were collected in the coastal area near the Gori nuclear power plant to investigate Quaternary fault pattern and timing. A 12 channel streamer, a sparker, and a portable recorder were used for data acquisition. Because the group interval of the streamer was 6.25 m and the sparker can generate acoustic waves with the frequency content of up to 500 Hz, the data show a significant improvement both in horizontal and vertical resolution. The area surveyed is covered with 30-40 m thick Holocene sediments that constitute the mud belt along the southeastern coast of Korea. The survey area is characterized by the well discriminated Pleistocene and Holocene boundary and shallow gas-charged zones. A number of Quaternary faults were found in the sediment column, that are nearly vertical and extend north-south. The Quaternary faults, arranged at a spacing of a few hundred meters, suggest that they were formed in response to compression, although some of them reveal extensional characteristics. Locally, faults disrupt Incised-channel fills that are interpreted to have formed in the early stage of transgression after the beginning of the Holocene. Seismic sections suggest that shallow gas in the mud belt sediments made its way upward through the fractured fault planes. The tectonism responsible for the opening of the East Sea has not persisted since the late Miocene, but vigorous Quaternary faulting activity in the vicinity of the southeastern Korean Peninsula indicates that tectonic stability has yet to be achieved in this region underlain by the hotter than normal mantle.

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Spatial distribution of vegetation along the environmental gradient on the coastal cliff and plateau of Janggi peninsula (Homigot), southeastern Korea

  • Jung, Song Hie;Kim, A Reum;Lim, Bong Soon;Seol, Jae Won;Lee, Chang Seok
    • Journal of Ecology and Environment
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    • v.43 no.2
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    • pp.117-128
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    • 2019
  • Background: Cliffs are a major plant habitat around the coastal area, but in contrast to sand dunes and salt marshes, they have been little investigated in Korea. There are simple descriptions of cliff vegetation in studies on island vegetation, but there is no published paper, which addressed sea cliff vegetation synthetically. Furthermore, the coastal area where this study was carried out was designated as a conservation reserve. Even though, this area is exposed to intense recreational use such as trekking in these days. This study aims to clarify spatial distribution and structure of vegetation along the environmental gradient on coastal cliff and plateau in the Janggi peninsula (Homigot) located on southeastern Korea. Further, this study has also another objective to prepare a restoration plan to protect this conservation reserve from intense human disturbance. Results: Landscape elements were arranged in the order of sea cliff risen directly on the sea, seashore, coastal cliff, and plateau covered with relatively deep soil in a coastal area of the Janggi peninsula (Homigot), southeastern Korea. Vegetation was sampled at 59 plots arranged from the sea cliff through the seashore and coastal cliff to plateau. The sea cliff, seashore, and coastal cliff, which compose the coastal landscape, were dominated by the seashore spatulate aster (Aster spathulifolius Maxim.) community, dwarf sand sedge (Carex pumila Thunb.) community, and seashore spatulate aster (Aster spathulifolius Maxim.) community. On the plateau corresponding to the ridge of the coastal cliff, black pine (Pinus thunbergii Parl.) community, golden rain tree (Koelreuteria paniculata Laxmann) community, east Asian hackberry (Celtis sinensis Pers.) community, sawleaf zelkova (Zelkova serrata Makino) community, and Korean oak (Quercus dentata Thunb.) community were established in the mentioned order along distance from the sea. Stand ordination showed a vegetation sequence from the seashore through the cliff to the plateau, consistent in its overall pattern among sites. This was dominated by topography. There is evidence for the importance also of salinity, drought and of soil depth. Conclusion: The lack of scientific interest in cliffs to date is in striking contrast to the commonness of cliffs around the whole national territory and to the attraction cliffs have had for humans throughout history. Cliffs provide a unique habitat, rarely investigated from an ecological viewpoint. Cliffs may represent an invaluable type of ecosystem, consisting of some of the least disturbed habitats on earth and contributing more to the biodiversity of a region than their surface coverage would indicate. Although this coastal area where this study was carried out was designated as a conservation reserve, this area is in danger of severe disturbance due to excessive recreational use. We recommended a restoration plan to protect this area from such a disturbance.