2021 Annual Research Progress ( HK Branch)

218 Carbon Cycle, CO2 Fluxes, and Ocean Acidification in Coastal Ocean Waters 沿海水域碳循環、二氧化碳流通及海洋酸化 Distinguished Seminar Series 4 香港分部第四次杰出学者讲座 Prof. Wei Jun Cai 蔡卫君教授 University of Delaware, USA 美国德拉瓦大学 Intro: In this presentation, Prof. Cai talked about how his team studied the general behaviors, principles, and complexity of carbon cycle, CO2 fluxes, and ocean acidification in coastal waters through measuring surface carbonate parameters in ocean margins. Specifically, he used Northern Gulf of Mexico and Chesapeake Bay hypoxic waters as the examples, and compared the carbon cycle, carbonate chemistry, and acidification in both sea areas. Prof. Cai’s research has built a broad map for us to understand carbon cycle process and highlighted the significant influence of anthropogenic activity on ocean acidification and ecosystem health. 内容摘要:此次演讲中,蔡教授讲述了 他的团队如何通过测量边缘海表面碳酸 盐参数来研究沿海水域碳循环、二氧化 碳流通和海洋酸化的一般行为、原理及 复杂性。具体而言,他以墨西哥湾北部 和切萨皮克湾缺氧水域为例,比较了两 个海域的碳循环、碳酸盐化学和海洋酸 化情况。蔡教授的研究成果为我们了解 碳循环过程构建了一幅全面画卷。此次 演讲突出了人类活动对海洋酸化和生态 系统健康的重大影响。 Date 日期 : 30 September 2021 (Thursday) 2021年9月30日 (星期四) Zoom Meeting 线上平台 ID : 918 0384 3124 Participants 参会者 : 297

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