• 제목/요약/키워드: Cheju Island

검색결과 852건 처리시간 0.035초

제주도 지하수의 수위변동에 관한 연구 (Study on the Fluctuations of Groundwater Levels in Cheju Island, Korea)

  • 박원배;양성기;고기원
    • 한국환경과학회지
    • /
    • 제3권4호
    • /
    • pp.333-348
    • /
    • 1994
  • The groundwater levels at 11 sites and the vertical variations o( the water Quality at 1 site were measured to study the characteristic of the groundwater level fluctuation of Cheju Island. The results of the measurements for the groundwater levels were as follows; In the eastern part, inculding Kimnyong, Jongdal and Sungsan, a sinusoidal fluctuation of groundwater levels occurred in response to oceanic tides. The tidal effect on the groundwater level was reduced depending upon the distance from seashore. But time lag showed that the trend is reversed. However, in the Samyang, Kosan and Shinhyo areas show that the groundwater level was directly influenced by the amount of precipitation. Especially, Shinhyo area which southern part in Cheju was affected the most and show upper parabasal groundwater level. In Susan- I which eastern part in Cheju, well rovealed that water Quality changed with the period of a tide. Salinity at the lim, bellow the natural groundwater level, was approched to the brackish groundwater(1000ppm).

  • PDF

제주산(濟州産) 돼지의 내부기생충(內部寄生蟲)에 관(關)한 조사(調査) (The Internal Parasites of Swine in Quelpart Island (Cheju-do))

  • 김철수;김수후;이방준;장두환
    • 대한수의학회지
    • /
    • 제9권2호
    • /
    • pp.43-47
    • /
    • 1969
  • In a survey of the internal parasites of 1000 swine at Quelpart Island (Cheju-do), Incidence of the parasites was 99.6 percent and negative result was 0.4 percent only. The results was obtained as follows; Metastrongylus apri-51.6% Ascarops strongylina-23.5% Hyostrongylus rubidus -4.1% Trichuris suis -34.8% Ascaris lumbricoides-64.3% Cesophagostomum spp. -74.9% Strongyloides ransomi-8.1% Cysticercus cellulosae -3.8% Cysticercus tenuicollis -17.1% Echinococcus -11.8% Coccidia -61.5% Balantidium coli -23.4%.

  • PDF

기후 특성과 관련된 제주도의 민가 경관 (The characteristics of folk house related to climate in Cheju island)

  • 김기덕;이승호
    • 한국지역지리학회지
    • /
    • 제7권3호
    • /
    • pp.29-43
    • /
    • 2001
  • 본 논문에서는 제주도의 기후 자료와 문헌 자료, 현지 답사 자료를 분석하여, 기후 특성과 관련된 제주도의 민가 특성을 파악하고자 하였다. 여름철의 강수와 습도는 한라산 남쪽의 민가에, 겨울철의 바람은 한라산의 북쪽 민가에 영향을 미쳤다. 축굽은 강수와 관련이 있으며 제주도 전역에 분포한다. 재창문은 여름철 습도가 높은 한라산의 남쪽에 분포한다. 겹집 구조와 낮은 처마, 완만한 경사의 지붕, 돌담 등은 제주도 전역에 분포하며, 강한 바람과 관련 있다. 겨울 계절풍이 강한 한라산 북쪽에는 이중문이 보편적이며, 북쪽 해안지역에서는 이문간이 추가된다. 외벽, 풍채, ㄱ랑채 등은 강한 바람과 동시에 많은 강수에 대비한 것이다. ㄱ랑채는 한라산 북쪽 전지역과 한라산의 남동쪽에 분포한다. 한라산 남쪽의 민가가 한라산 북쪽의 것보다 개방적이다. 한라산 북쪽의 민가는 이문간의 유무에 의해 해안형과 중산간형으로 구분할 수 있으며, 한라산 남쪽에서는 ㄱ랑채 시설의 빈도에 의해 동부형과 서부형으로 구분된다.

  • PDF

Phylogenetic Relationships between Ulva conglobata and U. pertusa from Jeju Island Inferred from nrDNA ITS 2 Sequences

  • Kang, Sae-Hoon;Lee, Ki-Wan
    • ALGAE
    • /
    • 제17권2호
    • /
    • pp.75-81
    • /
    • 2002
  • In this study the length of ITS2 from four species of the Ulvaceae in Jeju Island varied between 167 and 203 bp. The resuits of this investigation showed that two genus, Ulva and Enteromorpha are grouped in a monophyletic assemblage with 100% bootstrap support in all phylogenetic trees. However, a thorough eamination of these characters from representatives does not provided a way to identify any unique morphological features of clasdes in this tree. This study reveals that Ulva conglobata and Ulva pertusa belong to one clade in the phylogenetic tree with the samples from Jeju Island, Korea.

제주도의 곶자왈에 분포하는 지표성 딱정벌레 군집의 특성 (Community Characteristics of Ground Beetles in Four Gotjawal Terrains of Jeju Island, Korea)

  • 전형식;양경식;이가은;김원택
    • 환경생물
    • /
    • 제26권3호
    • /
    • pp.226-232
    • /
    • 2008
  • Sampling of the ground beetles in four 'gotjawal' terrains of Jeju island was conducted from April to October, 2007, using pit-fall trap. Totally 2,887 individuals of 23 species belonged to 4 families were collected. The species diversity index was the highest at Aeweol gotjawal (AW), while it was the lowest in Hangyeong-Andeog gotjawal (HA). Clustering analysis revealed that the insect communities of four gotzawals were grouped in only one cluster. Jocheon-Hamdeog gotjawal (JH) formed a cluster with Gujwa-Sungsan gotjawal (GS) at the lowest chord distance (0.24). At the higher chord distance of 0.50, AW fused the cluster of JH and GS. HA fused with the rest three terrains, forming a single cluster at the highest chord distance of 0.98.

제주도 조간대 및 초지대 생태계의 군집구조에 관한 연구 -저서 대형무척추동물의 분포와 군집구조- (Community Structure of the Ecosystem on the Intertidal Zone and Grass Land in Cheju Island - Distribution and Community Structure of Benthic Macroinvertebrates-)

  • 이정재;장익창;조운삼
    • 한국패류학회지
    • /
    • 제5권1호
    • /
    • pp.10-28
    • /
    • 1989
  • A study on the distribution and community structure of benthic macroinvertebrates on the intertidal zone of Cheju Island was carried out from June 1988 to May 1989. The macroinvertebrates collected and identified were composed of 7 phyla, 14 classes, 29 orders, 71 families and 135 species in this study. The dominant species of the upper tidal zone were Nodilittorina granularis and Heminerita japonica, those of the middle tidal zone were Monodonta neritoides and Lunella coronata coreensis, However, Monodonta neritoides and Chlorostoma arhyrostoma lischkei were dominant in the lower tidal zone. Community dominant indices were significantly high in the upper tidal zone. Macuoinvertebrates species which have the ability of resistance to the physical factors such as, strong waves and exposure to the hot sunlight were mainly distributed on the intertidal zone of Cheju Island. The difference in the number of species among seasons was not significant, but thao among zones was quite apparent and the lower the zone, the more abundant.

  • PDF

제주도 북부연안역의 생물생태학적 기초연구 - 저서패류의 분포와 군집구조- (Bioecological Study of the Northern Coastal Area in Cheju Island - Distribution and Community Structure of Benthic Molluscan Shells -)

  • 이정재
    • 한국패류학회지
    • /
    • 제6권1호
    • /
    • pp.33-44
    • /
    • 1990
  • A study on the distribution and community structure of benthic molluscan shells of the northern coastal area in Cheju Island was carried out from July 1989 to June 1990. The benthic molluscan shells collected and identified were composed of 3 classes, 9 orders, 29 familes and 81 species. The first dominant species of the wpper intertidal zone of the northern coastal area in Cheju Island was Nodilittorina exigua and second dominant species were Heminerita japonica, Monodenta neritoides, Monodota neritoides, Littorina brevicula, those of middle intertidal zone were Lunella coronata coreensis, Monodonta neritoides and Omphalius rusticus. H. japonica, M. neritoides, O. rusticus, L. coronata coreensis and Niotha livescens were dominant in the lower intertidal zone, and Astralium haematragum was dominant in the infralittoral zone of within 60 feet sea water depth. The benthic molluscan standing biomass of intertidal and infralittoral zones were 145.71-705.55 gr/ /m sup 2 / and 84.57-1645.67 gr/m sup 2/ respectively, But thao among area and zones were apparently differences.

  • PDF

제주도 동부연안역의 생물생태학적 기초연구 - 조간대 암반역에 분포하는 저서무척추동물의 계절적 군집변동 - (Bioecological Studies of the Eastern Coastal Area in Cheju Island - Seasonal Changes of Macroinvertebrate Commuity on the Intertidal Rocky Shores -)

  • 이정재;현재민
    • 한국패류학회지
    • /
    • 제8권1호
    • /
    • pp.1-20
    • /
    • 1992
  • A study on the seasonal changes of the benthic macroinvertebrate community was performed on the intertidal rocky shores ao eastern coast of Cheju island and U-do throughout four seasons from october 1991 to August 1992. The macroinvertebrates were composed of 10 phyla, 18 classes, 39 orders, 94 families and 201 species. the number of speecies were 183 in summer, 147 in autumn, 138 in spring and 94 in winter, respectively. The total wpecies collected throuhout the study period were 193 species in U-do and 151 species in the eastern coast of Cheju Island. Nodilittorina exigua was the most dominant species in all seasons, followed by Monodonta neritoides in spring, autumn and winter, and pollicipes mitella in summer. U-do was higher in species diversity and richness and lower in evenness than the eastern coast. Species diversity and richness were higher in summer than any other seasons in lower intertidal zones. Community dominance indices, however, were significantly higher in upper intertidal zones than in lower intertidal zones.

  • PDF