• Journal of the Korea Academia-Industrial cooperation Society
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• v.22 no.1
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• pp.614-620
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• 2021

Jeju has many out-of-town cultural areas owing to its low accessibility to concert halls. Based on data from Jeju in 2019, this study selected possible sites for concert halls and examined the location status of existing concert halls in Jeju by utilizing GIS analysis. As a result, directions on location selection are proposed for the western and eastern parts of Jeju, where accessibility to concert halls is relatively difficult. Considering the theory, prior research, and the regional characteristics of Jeju, the directions for location selection exclude residential areas and areas with little accessibility. They also list good points for accessibility within areas that have little of it, that are distant from administrative dong areas in Jeju-si and Seogwipo-si, that have friendly natural scenery, and that already have accessible public transportation. Accordingly, four places were proposed as possible areas for construction of a concert hall in 2020. This study is expected to contribute to cultural marketing that makes the Jeju area a Cultural Island.

• The Journal of Engineering Geology
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• v.2 no.1
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• pp.70-91
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• 1992

Cheju and Oahu island are similar in geology, characterized by same types of volcanic activities during the late Tertiary to the early Quaternary. The occurrence of groundwater in both islands depend on two basic elements, permeability of volcanic rocks and precipitation. However, groundwater occurrence in Oahu is much more controlled by dike complex in the regional volcanic rocks. There are two different types of groundwater in both islands. One is perched groundwater standing at any high altitude, and the other is basal groundwater developed near the coastal area. The groundwater quality of Cheju island is good in general for drinking. But many wells near the eastern coastal area are salt intruded due to over pumping activities and the area of salt water intrusion has increased landward from the year of 1970. This feature of salt water contamination is similar at Pearl Harbour in Oahu island. In order to prevent this salt water contamination into fresh groundwater reservoir on Cheju island, it is urgently asked to make groundwater flow study along the coastal area on terms of groundwater potentials and their maximum ultimate exploration.

• Journal of the Korean association of regional geographers
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• v.7 no.3
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• pp.29-43
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• 2001

This paper examined characteristics of folk houses related to climate in Cheju island using climate data, documents and field survey data. Precipitation and humidity affect characteristics of folk houses in the southern parts of the island during summer while in winter, northern parts are mainly affected by wind. Chuck-gub has been shown through all over Cheju island due to the characteristics of precipitation. Jaechangmoon exists in southern parts of the island and these parts are experienced high humidity in summer The double-row room houses, the low eaves, gentle slop roof and stone wall are distributed through Cheju island and is related to wind. The double door is common in the northern parts because of strong winter monsoon, and Yimoonkan exists in the coastal area of the northern parts. Outer wall, Pung-Che and Gorangche are affected by winter monsoon and abundant precipitation. Gorangche has shown through both the northern parts and southeastern parts. Folk houses in the southern parts are more open than in northern parts. Folk houses in the northern parts are divided into the coastal type and the piedmont type. In the southern parts, they are subdivided the eastern type and the western type by the appearance of Gorangche.

• Journal of the Korean Society of Urban Environment
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• v.18 no.4
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• pp.495-502
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• 2018

In this study, the AERMOD air diffusing model was used to estimate the range of influence of Hazardous chemicals (hydrogen fluoride) in case of small accidents in Jeju area. The impact scope were in the order of Seogwipo Fire Station, Dongbu Fire Station, Jeju Fire Station, and Seobu Fire Station. Seasonal orders were summer, spring, autumn and winter. The correlation between the meteorological factors shows a strong positive correlation with the wind speed of 0.998 and has a negative correlation with the temperature of -0.463. Through the linear regression analysis, we could estimate the equation of Impact scope = 13.922WS (Wind Speed) - 5.195 and the reliability ($R^2$) was as high as 0.995.

• Proceedings of the Korea Water Resources Association Conference
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• 2011.05a
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• pp.470-470
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• 2011

환경부 하수재이용사업은 2007년도 하수도법 개정을 통해 공공하수처리시설 처리수의 재이용 의무화를 시작으로 2010년도 "물의 재이용 촉진 및 지원에 관한 법률"의 시행으로 전국적으로 사업이 확대되고 있다. 제주도 월정하수처리장은 2009년도 하수재이용사업지구로 선정이 되어 2010년도부터 농업용목적의 재이용으로 구체적인 설계와 시공이 추진되고 있는 사업지구이다. 제주도에서는 지하수보존을 위해 대체수자원 개발 방안을 시급히 마련중에 있다. 특히, 제주도 농업용수 종합계획수립(제주도, 2004)에는 하수처리수를 농업용수로 이용하기 위한 계획을 수립할 정도로 지하수 사용량을 줄이기 위한 노력을 진행중에 있으며, 그 일환으로 하수재이용사업을 지속적으로 추진하고 있다. 하수처리수의 농업용수 재이용은 사용된 물을 재이용함으로써 물과 에너지를 절약할 수 있고, 유역 또는 해양으로 배출되는 오염원을 억제하는 장점이 있는 반면에 농산물 생육에 직접 영향을 줄뿐만 아니라 주변의 수질 생태 토양 환경 및 영농인의 보건에도 영향을 주기 때문에 장기적인 관찰과 검증작업이 필요하다. 이 에 서울대와 한국농어촌공사는 안전한 농업용수 재이용기술을 개발하기 위해 장기간 현장시험을 통해 재이용 재배기술과 함께 보건환경에 미치는 영향을 검증하였고 그 개발기술을 월정사업지구에 적용하게 되었다. 월정하수처리장이 위치한 제주 동부의 월정지역은 농지면적이 밭(374ha)과 과수(12ha)등 제주도의 전형적인 농촌마을으로 주요 재배작물은 마늘과 당근, 쪽파, 콩 등으로서 농업기반시설의 미비로 영농에 어려움을 호소하고 있으며, 2006년도에 발생한 가뭄으로 그 해 평균 수학량의 30%가 감소된 바 있는 지역이다. 제주도 농업용수 종합계획수립(2004, 제주도)에서는 10년에 한발을 기준 으로 $43,000m^3$/일의 용수가 부족할 것으로 분석하였으며 최근 $35,000m^3$/day 규모의 상수도 확보사업 계획 수립하였으나 여전히 농업용수가 부족하다. 방류수의 수질은 방류수수질기준을 만족하지만 염분함량이 높아 직접 농업용으로 사용하기에는 적당하기 않고, 농업용재이용방류수 수질기준에 맞도록 재이용시스템을 통해 재처리하여 농업용수로 사용해야 한다. 제주도에서는 이미 제주 서부하수처리장 농업용수 재이용사업(이하 판포재이용사업)'이 완료되어 재이용수를 농업용수로 공급하고 있으며 향후 지속적으로 하수재이용사업이 확대될 것으로 판단된다.

• Journal of the Korean Association of Geographic Information Studies
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• v.27 no.2
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• pp.45-60
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• 2024

This study aims to analyze the accidence of tourist safety accidents in Jeju using GIS and to expand the understanding of tourist safety accidents in the Jeju area. For this purpose, the eastern part of Jeju was selected as the study area, with the research period set for the entire year of 2021. The analysis utilized data on tourist safety accidents and emergency dispatch data resulting from these accidents in Jeju throughout 2021. Based on this safety accident data, an initial analysis was conducted on the accidence of tourist safety accidents across Jeju Island. This analysis identified patterns in the occurrence of tourist safety accidents by month, time, and location. Subsequently, using spatial data, grid analysis, and overlay analysis, the study examined the status of tourist safety accidents and emergency dispatches to identify vulnerable areas. Through this GIS analysis of tourist safety accidents, the study highlights the need for preventive and responsive measures considering the activity characteristics of tourists. It emphasizes the necessity of proactive preventive measures such as inspecting tourist facilities and promoting safety accident prevention, particularly in vulnerable areas..

• Proceedings of the Plant Resources Society of Korea Conference
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• 2002.11b
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• pp.69-69
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• 2002

갯대추(Paliurus ramosissimus (Lour.) Poiret)는 갈매나무과에 속하는 낙엽관목으로 드물게 교목으로 자라며, 우리나라에서는 제주도에만 분포하는 것으로 알려진 희귀식물이다. 이 종의 주요 분포대는 동아시아의 열대 및 아열대로 제주도는 위도 상 북한계로 알려져 환경부 지정 보호식물 제 39호로 지정\ulcorner보호하고 있으나 자생지에 대한 구체적인 조사가 이루어진 바 없다. 따라서 본 연구는 자생지의 현황과 생육상황을 파악하여 자생지 보전에 기여하고자 실시하였다. 갈매나무과는 세계적으로 58속 900여종이 분포하고, 갈매나무속(Genus Rhamnus), 헛개나무속(Genus Hovenia), 대추속(Genus Zyzyphus) 등이 주요 속으로 알려져 있으며, 그 중 갯대추속(Genus Paliurus)은 과실이 건과이고 날개가 있는 특징으로 다른 속과 구별된다. 꽃은 양성화로 7월~9월에 피고, 화서는 수 개의 꽃이 달리는 취산화서, 열매는 반구형으로 과병에 연한 갈색의 복모가 있으며 얕게 3부분으로 갈라져 각 실마다 편평한 공모양의 종자가 1개씩 들어있다. 갯대추 자생지는 제주도의 동부지역인 북제주군 구좌읍 김녕에 1개소, 남부지역인 남제주군 남원읍 태흥에 1개소, 서부지역인 북제주군 한경면 용당에 1개소, 한경면 용수에 1개소, 한경면 신창에 3개소 및 남제주군 대정읍 일과에 2개소 등 총 6지역 9개소였다. 분포지는 해발 20m이하의 해안가 토심이 얕은 암반 위였으며, 주로 해수의 영향을 직접적으로 받는 곳이었다. 생육상황을 조사한 결과 바다 쪽으로 갈수록 수고가 급격히 낮아지는 경향을 보였으며, 최소 0.3m, 최대 4.5m였고 평균 1.6m 정도였다. 수반종으로는 순비기나무와 갯기름나물, 갯까치수영 등 해안식생의 구성종이 대부분이었으며, 돌가시나무, 상동나무 등도 혼생하는 것으로 조사되었다. 자생지 위협요인으로는 양식장 시설, 도로개발, 해안매립 및 쓰레기 투기 등과 같은 인위적 간섭과 상동나무 등 주변식물의 피압이 주 요인이었다. 한편 갯대추는 희귀식물로서 뿐만 아니라 해류에 의해 전파되는 종으로 알려져 있어 제주도의 식물지리학적 연구에도 좋은 연구대상이 되고 있으므로 종 보전대책 및 자생지 보호에 대한 추가적인 연구가 필요하다.

• Journal of the Korean earth science society
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• v.28 no.7
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• pp.925-935
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• 2007

Water sources in volcanic Jeju Island are almost entirely dependent on groundwater because there are actually no perennial streams or rivers due to the permeable nature of surface soils derived from basaltic or trachytic rocks. Uncontrolled development of groundwater resulted in substantial water-level decline, groundwater pollution, and seawater intrusion in several places of the island. To maintain its sustainable groundwater, the provincial government has declared some parts of the island as the Special Groundwater Conservation/Management Area since 1994. Hence, all the activities for the groundwater development in the area should obtain official permit from relevant authorities. Furthermore, to acquire information on groundwater status, a network of groundwater monitoring was established to cover most of the low land and coastal areas with the installation of automatic monitoring systems since 2001. The analysis of the groundwater monitoring data indicated that the water levels had decreased at coastal area, especially in northern part of the island. Moreover, very high electrical conductivity (EC) levels and their increasing trends were observed in the eastern part, which was ascribable to seawater intrusion by intensive pumping in recent years. Water level decline and EC rise in the coastal area are expected to continue despite the present strict control on additional groundwater development.

• Journal of Life Science
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• v.26 no.7
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• pp.749-757
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• 2016

This study was carried out to reveal the genetic population structure of the Jeju Island population and the phylogenetic relationship of East Asian populations of the large-footed bat (Myotis macrodactylus) based on the genetic polymorphisms of mitochondrial cytochrome B (CYTB) and NADH dehydrogenase subunit 1 (ND1) gene sequences. A total of fourteen and nine haplotypes were found in the CYTB and ND1 sequences from East Asian bats, respectively. Haplotype distribution showed locality specific patterns. The results from ND1 haplotype analysis showed that the Jeju Island population has four haplotypes: the Mt. Halla and Western subpopulations have three ND1 haplotypes, but the Eastern subpopulation has just a single haplotype Nd03, which is commonly found on this island. The neighbor-joining (NJ) tree showed the closer relationship between Jeju Island and Japan rather than that between Jeju and Gangwon-do Province. The divergence time between the maternal ancestor lineages of Japanese and Chinese populations was estimated to be 0.789±0.063 MYBP. The secondary divergence between Jeju and Japanese bats was calculated about to be 0.168±0.013 MYBP. The Jeju population has immigrated to the island at least fifty thousand years ago. In addition, ND1 haplotype analysis suggested that the insular bats have experienced at least two further genetic differentiation events within this island. Consequently, these findings suggested that the results of this study may play a critical role in understanding the phylogenetic relationship among East Asian bat populations of M. macrodactylus. To prepare more explainable information on evolutionary correlation, analysis is still required to examine using expanded samples from China, Russia, and southern parts of the Korean Peninsula.

• The Journal of the Petrological Society of Korea
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• v.14 no.1
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• pp.45-60
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• 2005

This study was intended to elucidate the petrography and geochemical characteristics of the Someori Basalt in the Udo monogenetic volcano, eastern Jeju Island. The Someori basalts consist of plagioclase, olivine, orthopyroxene, clinopyroxene and ilmenite. The Someori basalts are plotted into subalkali rock series on the TAS diagram, and belong to tholeiitic basalts in the diagram of alkali index against to Al₂O₃ contents. The basalts belong to tholeiitic rock series, having normative quartz (less than 3.9%) + hypersthene + diopside.