• Journal of the Korean Geographical Society
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• v.49 no.5
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• pp.639-655
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• 2014

Uvala is one of the geographic features which have been discussed very actively in the field of Karst geomorphology, but most researches in Korea have been staying at the level which uvala were discussed from the viewpoint of the Karst cycle. In this study, the geomorphological characteristics of Kwangduck-ri Uvala will be identified on the basis of the various definitions, and the irrigation systems which have been developed during 250 years will be analysed using a number of data, such as interviews, statistical data, maps, air-photos, especially topographical analysis from GIS. It is concluded that the site of Kwangduck-ri Uvala would have shown the genuine history to adapt and overcome the obstacles of harsh karst environment and to make the stable agricultural and irrigation system in the high plateau karst area.

• Journal of The Geomorphological Association of Korea
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• v.20 no.1
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• pp.1-9
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• 2013

This study aims to provide fundamental data for further shape-factor research on karst by measuring and classifying the shape of surface topography in Hogye, Mungyeong. First, in the research area, there are 35 dolines and uvalas. Second, large uvalas are found in three places, including Gulnomjae in Bugokri, and Teotgol and Denjimigol in Urori. Third, there are 13 round dolines and 22 oval dolines. Next examining the cross section of dolines, there are 27 bowl shaped dolines, 2 plate shaped dolines, and 6 funnel shaped dolines. Fourth, most dolines lay over 200m elevation, which is ridge and top of mountain. Fifth, development direction of dolines resembles the strike direction of limestone in Hogye, suggesting that the development direction of limestone affects doline corrosion. From this situation, we can guess sinkholes of the doline would be linked with limestone caves by the underground water pipe. Three limestone caves, karren and dry valley etc. appear in the research area.

• Journal of the Speleological Society of Korea
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• no.52
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• pp.11-16
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• 1997

석회동굴은 석회암지역에서 형성된다. 이들 석회동굴은 석회암의 화학성분이 용해되어 지하에 스며들어 석회동굴을 형성한다. 석회암지대의 지표면에는 돌리네, 우발라와 같은 각종 지형이 나타나는데 이들을 카르스트지형이라 부르고 이들이 계속 변질 환산되어가는 과정을 카르스트윤회라고 한다. 카르스트윤회과정에서 지표수가 지하에 스며들어 지하수통로인 지하수동 즉 석회동굴이 형성되는데 이 지하수 통로가 바로 동굴인 것이다. 이렇게 형성된 동굴의 천정에는 계속적으로 땅속으로 지표면에서 물방울이 스며들게 되는데 이들 석회암의 용해물방울이 땅속지하수동의 천정, 벽면에 침적되어 이른바 동굴의 2차 생성물이 형성되는 것이다.