%0 Journal Article
%T Aquatic ecosystems: carbon cycle and as atmospheric CO_2 sink<br>水生生态系统的碳循环及对大气CO_2的汇
%A YAN GUO An
%A <br>严国安
%J 生态学报
%D 2001
%I 
%X Aquatic ecosystem, especially ocean, is a huge sink of atmospheric CO 2. The ocean's role in regulating the uptake capacity of CO 2 and the carbon exchange between atmosphere and ocean involve a combination of inorganic carbon chemistry in mixing layer, advection transfer of carbon dissolved in ocean water, CO 2 diffusion through the interface of air and water, and various biotic processes, biological interactions in the upper ocean. Many models have been estabolished and developed in oredr to evaluate sink of CO 2 in the ocean. In this paper, it is summarized that the research progresses on carbon cycle in aquatic ecosystem and action mechanism of "biological pump", as well as two kinds of models: box model (BM) and general circulation model (GCM). Based on the model mentioned above estimates of the net ocean sink for CO 2 range from 1.2 to 2.4 GtC/a. The transport and storage of atmospheric carbon in lake, river and reservoir are analysed. The factors that affect the carbon cycle and the sink capacity of atmospheric CO 2 in aquatic ecosystem were discussed as well.
%K aquatic ecosystems
%K ocean
%K carbon cycle
%K atmospheric CO
%K 2<br>水生生态系统
%K 海洋
%K 碳循环
%K 汇
%K 大气CO2汇
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=FE163E5DB2274E5937319DE98913EC37&aid=BBBA02E69753E85F45E7919A7865B3B0&yid=14E7EF987E4155E6&vid=659D3B06EBF534A7&iid=94C357A881DFC066&sid=AC3946AB81989513&eid=07034C6B9EA4A53C&journal_id=1000-0933&journal_name=生态学报&referenced_num=12&reference_num=4