Journal of The Geomorphological Association of Korea (한국지형학회지)

The Geomorphological Association of Korea (한국지형학회)
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Study of the Correlation Between Diatom and Environmental Variables for Palao-Sealevel Reconstruction in the Korea Peninsula: Case Study of the Eastern Tidal Flat of Gomso Bay

한반도 고해수면 변동 복원을 위한 규조-환경변수 상관관계 연구: 곰소만 동부 조간대 지역을 대상으로

  • Kim, Jeong-Yun (Department of Geography, Kyungpook National University) ;
  • Yoon, Soon-Ock (Department of Geography, Kyung Hee University) ;
  • Yang, Dong Yoon (Geo-Environmental Hazards & Quaternary Geology Research Center, Korea Institute of Geosciences and Mineral Resources) ;
  • Hwang, Sang ill (Department of Geography, Kyungpook National University)
  • 김정윤 (경북대학교 지리학과) ;
  • 윤순옥 (경희대학교 지리학과) ;
  • 양동윤 (한국지질자원연구원 지질환경재해연구센터) ;
  • 황상일 (경북대학교 지리학과)
  • Received : 2017.06.17
  • Accepted : 2017.06.27
  • Published : 2017.06.30
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Abstract

This study investigated the correlation between the diatom community and the environmental variables on the tidal flat surface of the eastern part of Gomso Bay in the West coast of Korea in order to utilize the quantitative sea level record as a basic data. 24 sediment samples at 10cm intervals downstream of the Galgok Stream were used for diatom analysis, grain size analysis and CCA. As a result of diatom analysis, marine diatoms dominated at lower altitudes and the ratio of diatoms to fresh water diatoms and brackish diatoms increased toward upland. As a result of CCA, the contribution of environmental variables was analyzed as 25.3% at altitude, 21.6% at sand, 13.3% at skewness, etc. This means that altitude above sea level has the greatest influence on the diatom composition in the tidal flat surface. It suggests that the contribution of environmental variables at altitude above sea level can be used as a basic data for the quantitative records for reconstruction of paleo-sea level.

Keywords

Acknowledgement

Supported by : 해양과학기술진흥원