Biogeochemical Studies on Tidal Flats in the Kyunggi Bay: Introduction

경기만 부근 갯벌의 생지화학적 연구: 서문

  • Cho, B.C. (School of Earth and Environmental Sciences, Seoul National University) ;
  • Choi, J.K. (Department of Oceanography, Inha University) ;
  • Lee, T.S. (Department of Marine Science, Pusan University) ;
  • An, S. (Department of Marine Science, Pusan University) ;
  • Hyun, J.H. (Marine Microbiology Laboratory, Korea Ocean Research and Development Institute)
  • 조병철 (서울대학교 자연대학 지구환경과학부) ;
  • 최중기 (인하대학교 자연대학 생명해양학부) ;
  • 이동섭 (부산대학교 자연대학 해양과학과) ;
  • 안순모 (부산대학교 자연대학 해양과학과) ;
  • 현정호 (한국해양연구원 해양생물자원연구본부)
  • Published : 2005.02.28

Abstract

Tidal flats have been regarded to carry out transformation and removal of land-derived organic matter, and this purifying capability of organic matter by tidal flats is one of very important reasons for their conservation. However, integral biogeochemical studies on production and decomposition of organic matter by benthic microbes in tidal flats have been absent in Korea, although the information is indispensable to quantification of the purifying capability. Our major goals in this multidisciplinary research were to understand major biogeochemical processes and rates mediated by diverse groups of microbes dominating material cycles in the tidal flats, and to assess the contribution of benthic microbes to removal of organic matter and nutrients in the tidal flats. Our study sites were Ganghwa and Incheon north-port tidal flats that had been regarded as naturally well reserved and organically polluted, respectively. Our research group measured over 3 years primary production, biomass and community structure of primary producers, abundance and production of bacteria, enzyme activities, distribution of protozoa and protozoan grazing rates, rates of denitrification and sulfate reduction, early sediment diagenesis, primary production and respiration based on oxygen microelectrode. We analyzed major features of each biogeochemical process and their interactions. The results are compiled in the following articles in this special issue: An (2005), Hwang and Cho (2005), Mok et at. (2005), Na and Lee (2005), Yang et at. (2005), and Yoo and Choi (2005).

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