The Sea:JOURNAL OF THE KOREAN SOCIETY OF OCEANOGRAPHY (한국해양학회지:바다)

The Korean Society of Oceanography (한국해양학회)
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Sediment Trap Studies to Understand the Oceanic Carbon Cycling: Significance of Resuspended Sediments

퇴적물 트랩을 이용한 해양 탄소 순환 연구 동향: 재부유 퇴적물의 중요성

  • KIM, MINKYOUNG (Marine Environmental Research Center, Korea Institute of Ocean Science and Technology)
  • 김민경 (한국해양과학기술원 해양환경연구센터)
  • Received : 2021.01.31
  • Accepted : 2021.04.26
  • Published : 2021.05.31
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Abstract

For several decades, sediment traps have served as one of the key tools for constraining the biological carbon pump (BCP), a process that vertically exports particulate organic carbon (POC) and associated biogenic materials from marine primary production in surface waters to the deep ocean interior. In this paper, I introduced the general methods, the current status of global sediment trap studies, and importance of it to understand the deep ocean carbon cycling. Recent studies suggest that sinking POC in the deep ocean are more complex and spatio-temporally heterogeneous than we considered. Especially researches those studied resuspended and laterally transported particles are presented. Researches that used organic (radiocarbon; 14C) and inorganic (Al) tracers to understand the oceanic POC cycling and the significance of resuspended particles are reviewed, and the importance of radiocarbon study by using MICADAS (Mini radioCarbon Dating Systems) is emphasized.

지난 수십년 간 퇴적물 트랩은 해양 유기물과 관련된 생물학적 입자들의 수직적 이동인 생물학적 탄소 펌프(BCP: Biological Carbon Pump)를 이해하는 데 중요한 도구들 중 하나로 사용되어 왔다. 이 논문에서는 퇴적물 트랩을 이용한 해양 심층의 탄소 순환 연구 방법과 여러 해역에서의 연구 현황, 그리고 그 중요성에 대하여 고찰하였다. 한편 최근의 연구 중 몇몇은 심층으로 이동된 침강 입자유기탄소(POC: Particulate Organic Carbon)가 이전에 알려졌던 것 보다 더 복잡한 형태이고, 시공간적으로 다양한 기원을 가지고 있음을 밝혔다. 이 논문에서는 특히 침강 입자 중 재부유 퇴적물에 관해 연구한 최신 논문들을 정리하였다. 유기 추적자로 사용한 방사성탄소동위원소(14C)와 무기적 추적자(Al)를 해양 입자유기탄소 순환을 이해하고 재부유 퇴적물의 중요성을 파악하는 데 있어 어떻게 활용할 수 있을지 기술하였으며, 특히MICADAS (Mini radioCarbon Dating Systems)를 이용한 방사성탄소동위원소 연구의 중요성을 강조하였다.

Keywords

Acknowledgement

이 논문 작성에 도움을 주신 황점식, 김정현, 이신아, 김미선, 그리고 원고를 읽고 유익한 조언을 주신 심사위원께 감사드립니다. 이 논문은 2019, 2020년도 정부(교육부)의 재원으로 한국연구재단의 지원을 받아 수행된 기초연구사업(국내외박사후 연수사업: 2019R1A6A3A03031671, 2020R1A6A3A01095893) 연구입니다.

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