摘要
全球碳循环研究是全球变化科学中的研究重点之一,在过去的研究中已取得了长足的发展,但对碳源和汇的定量研究还是今后需要进一步加强的工作。综述了近年来全球碳库储量研究的主要进展,分析了岩石圈、陆地生态系统、海洋、大气以及人类社会等碳库的储量、在全球碳循环中的地位及其作用机制,针对与全球升温事件密切相关的人为碳排放问题专门作了论述,并结合最新的研究成果,对"未知汇"问题的新的研究方向作了阐述。碳循环研究已经进入一个新的发展时期,国际科学组织与各国政府对碳循环研究的关注与投入正逐步增加,但其关注的内容并不一致。分别以地球系统科学联盟的全球碳计划和美国的北美碳计划为例,介绍了国际碳循环研究的重点与趋势。最后提出了今后全球碳循环研究需要关注的一些领域:陆地碳循环机理与源汇定量研究;海洋大尺度碳循环及其机理研究;人类社会在碳循环中的作用研究等。
Global carbon cycle is one of the main factors that influence the global environment system. Especially, it effects the Earth climate and the atmospheric temperature, etc. Since the Industrial Revolution, more carbon dioxide has been discharged into the atmosphere which leads high atmospheric temperature. Till today, the content of the carbon dioxide in atmosphere is increasing still. Under the framework of UNFCCC and the Kyoto Protocol, more and more countries have paid attention to the problem of carbon emission. More research activities and programs have been launched. Taking the Carbon Cycle Project of ESSP and the North America Carbon Program of US as examples, the research focus and trends of this field were addressed. The carbon pools, e.g. lithosphere, ocean, terrestrial ecosystem, atmosphere, and human society, and their storages are the natural base of the carbon cycle research. The contributions to the global cycle of all the carbon pools and the budget of the carbon emission from human society were analyzed. Some suggestions were given at the end of this paper.
出处
《地球科学进展》
CAS
CSCD
2003年第6期980-987,共8页
Advances in Earth Science
基金
国家自然科学基金委托项目"国际全球变化研究动态与科学发展"资助.
关键词
全球变化
碳循环
碳库
碳源
碳汇
Global Change
Global carbon cycle
Carbon source
Carbon sink
Carbon storage.
