2026/03/10(Tue) 14:00 -16:00 一樓演講廳 1F, Auditorium
Title
物質如何在海洋中循環: 淺談海洋生物地球化學
How Materials Cycle in the Ocean: An Introduction to Marine Biogeochemistry
Speaker
何東垣研究員 (中央研究院環境變遷研究中心) Dr. Tung-Yuan Ho (Research Center for Environmental Changes, Academia Sinica)Abstract
Material cycling in the ocean is a dynamic system that spans vast spatial and temporal scales and is tightly coupled with physical processes, involving interactions among fluid motion, geochemical reactions, and biochemical activities. In this lecture, I will use accessible language to explain how materials are transported, transformed, and redistributed in the ocean, as well as the broader significance of these processes within the Earth system. The talk will be organized into three parts. The first part will introduce the fundamental concepts of how biologically relevant materials cycle in the ocean. The second part will highlight the distinctive features and importance of marine biogeochemistry through several representative elements (Fe, Ni, Cd, Zn, Pb, etc.), illustrating how these elements interact with physical, chemical, and biological processes in the ocean. The final part will integrate the foundational concepts and discussions of elemental cycling presented earlier to explain how the oceanographic community is currently leveraging ocean processes to achieve the uptake and sequestration of atmospheric carbon dioxide (blue carbon). I will also take this opportunity to introduce the key characteristics of the marine environment surrounding Taiwan.
海洋中的物質循環，是一個跨越極大時空尺度、並與物理過程高度耦合的動態系統，涉及流體運動、化學反應與生物作用的交互影響。本次演講將以淺顯易懂的方式，說明物質如何在海洋中傳輸、轉化與再分配，以及這些過程在地球系統中的重要意義。演講分為三個部分。第一部分是介紹與生物相關的物質在海洋中循環的基本觀念、第二部分將以幾個代表性元素(Fe, Ni, Cd, Zn, Pb等)來彰顯物質在海洋中循環的特點與海洋生物地球化學的重要性、最後一部分將整合前述基礎觀念與元素循環的討論來說明當前海洋學界如何透過理解與調控海洋物理、生物與化學耦合機制，來強化大氣二氧化碳的吸收與封存(藍碳)，也將藉此機會和大家介紹臺灣周邊海洋環境的特徵。
Language
演講語言 (Language): in English