摘要
海洋对CO2的吸收缓解了大气CO2浓度的持续上升,陆架海因其较高的初级生产而具有较强的固碳能力,在海洋碳循环中占据重要角色。然而由于陆架海过程时空变化剧烈,陆架海对人为CO2源/汇作用的动态格局还存在争议,陆架海碳循环的调控机制尚不清晰。IPCC AR4所采用的气候-碳循环耦合模型均未考虑陆架海碳循环,使其成为气候预测不确定性的主要来源之一。建立适宜的陆架海碳循环模型,可以探究陆架海不同区域CO2源/汇格局的长期变化,估算碳循环各关键过程的贡献,认识碳循环系统与生态系统的相互作用,评估陆架海碳循环在气候变化中的作用。基于陆架海碳循环模型研究现状,从物理过程、生物泵、碳化学系统等三个主要方面总结了陆架海碳循环模式在建模中应考虑的关键过程,提出了构建东中国陆架海碳循环模式的基本思路及拟解决的关键科学问题。
Due to high carbon fixation potential forced by high primary production, the continental shelf systems are significant contributors to the ocean carbon cycle that has the buffer capacity via taking up the increasing anthropogenic CO2. However, the dynamic patterns of CO2 sinks and sources are still obscure and the control mechanisms are known little due to the dramatic spatial-temporal variation in continental shelf. Carbon cycle in the marginal seas excluded in climate-carbon cycle coupled models will be a main un- certainty for forecasting climate change in IPCC-AR4. By using suitable continental shelf carbon cycle models, the long term variations of sinks/sources patterns, the possible contributions of key processes in carbon cycle, the interactions between carbon systems and ecological systems, and the role of continental shelf carbon cycle under climate change are estimated. The key processes considered in the models related to physical field, biological pump and carbonate system are summarized based on the researches of carbon cycle models for the continental systems, and key scientific problems to be solved, along with a basic idea to model the carbon cycle in the East China Sea, are proposed.
出处
《海洋科学进展》
CAS
CSCD
北大核心
2014年第2期277-287,共11页
Advances in Marine Science
基金
国家自然科学基金--黄东海碳通量季节
年际变化的模拟与机制分析(41376112)
国家重点基础研究发展计划项目--中国近海水母暴发的关键过程
机理及生态环境效应"第六课题"水母灾害暴发机制与生态效应的模型研究"(2011CB403606)
关键词
陆架海碳循环模型
物理过程
碳化学系统
生物泵
Continental shelf Carbon cycle model
Physical process
Carbonate system
Biological pump
作者简介
罗晓凡（1987-），女，内蒙通辽人，博士研究生，主要从事海洋生态动力学模拟方面研究．Email：allenfan87@gmail．com
通讯作者，E-mail：weihao@ouc．edu．cn
