【來訪單位 Institution】：廈門大學近海海洋環境科學國家重點實驗室，中國    MEL China
【邀請人 Host】：戴民漢  Minhan Dai      【聯絡人 Contact】：黃迎   Ying Huang 2181571

Abstract
The ocean margins play a disproportionally important role on air-sea CO₂ fluxes and global carbon budget. The level of bio-limiting nutrients in the upper ocean constrains the primary productivity and export production, subsequently determining ocean capability of sequestering atmospheric CO₂. Ocean margins are thus intrinsically characterized by higher gradients of variations in almost all chemical and biological parameters and stronger variability in time. These factors increase the complexities and difficulties of the biogeochemical studies in ocean margins. The South China Sea (SCS), the largest marginal sea of the North Pacific, is such a complex system. Based on multiple approaches, including field observations, historical data reanalyzing and a three-dimensional coupled physical-biogeochemical model, I will present the spatial and seasonal variations of carbon and nutrients and their controlling mechanisms, and the subsequent biogeochemical implications in the SCS.

Bio：

杜川軍博士2016年7月畢業于廈門大學環境與生態學院，2016年11月至2017年11月在香港科技大學從事博士后研究；2018年6月起至今在MEL從事博士后研究工作，合作導師為戴民漢教授。杜川軍博士的主要研究內容為南海碳和營養鹽的生物地球化學過程，包括時空變化、動力調控機制、以及生物地球化學意義。