应高寒生态学与生物多样性重点实验室孔维栋研究员邀请，日本北海道大学 (Hokkaido University)吉川久幸 (Hisayuki YOSHIKAWA)教授将前来青藏所交流并做学术报告。

题 目：Biogeochemical studies of global carbon cycle

报告人：professor Hisayuki Yoshikawa

主持人：孔维栋 研究员

时 间：2013年6月4日（星期二）下午15:30­­­–16:30

地 点：青藏高原研究所915会议室

简 介： 

Professor Hisayuki Yoshikawa received his PhD from Kyoto University in 1980. From 1980 to 2002, he worked successively as research scientist, senior research scientist and head of the Geochemical Laboratory, Meteorological Research Institute of Japan. He was appointed as professor of Graduate School of Environmental Science, Hokkaido University since 2002. His researches cover air-sea carbon exchange in the open ocean (especially in the Southern Ocean), variations in oceanic carbonate system in the open ocean, air-land carbon exchange, biogeochemical cycles of greenhouse gases other than CO2, determination of fractionation factor of gases between air and seawater, and role of sea-ice on the biogeochemical cycle etc. He is now maintaining Rishiri Observatory (RIO), the northernmost atmospheric observation station in Japan. Specifically, he uses Radon-222 as a tracer to estimate the sources and sinks of atmospheric greenhouse gases in the East Asia. He is also a leading scientist of the GRENE project (2011–2016) of Japan. For more information, please refer to http://geos.ees.hokudai.ac.jp/hyoshika/index.html.

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