%0 Journal Article
%T A Review on the Coupled Carbon and Water Cycles in the Ter r estr ial Ecosystems<br>陆地生态系统碳- 水耦合机制初探
%A ZHAO FengHua
%A YU GuiRui
%A <br>赵风华
%A 于贵瑞
%J 地理科学进展
%D 2008
%I 
%X Carbon and water cycles absorbed much attention in the global change researches. There were many observations indicating that they were robustly coupled in the terrestrial ecosystems. Here we reviewed the correlations between carbon and water cycles from leaf to canopy and to larger scales. Moreover, we discussed the general mechanisms of the coupling relationships between carbon and water cycles. The chain between carbon and water cycles was analyzed into four links: soil-plant link, plant-atmosphere link (stomata link), soil-atmosphere link and biochemical link. The causes for the strong correlations between carbon and water could be generalized as three fundamental functions: 1) the chemosynthesis between carbon and water; 2) the stomatal controls on gas exchange and its optimal function; and 3) the common driving forces and similar controls for carbon and water cycles in the terrestrial ecosystems. Water use efficiency defined as the ratio of carbon assimilation to water use also was discussed as a suitable term indicating the quantity relationship between carbon and water.
%K carbon cycle
%K water cycle
%K water use efficiency
%K terrestrial ecosystem
%K global change<br>碳循环
%K 水循环
%K 水分利用效率
%K 陆地生态系统
%K 全球变化
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=869B153A4C6B5B85&jid=1328CFD3AA22A104E94CC0878E405FDC&aid=99291D2B6468C4D92876D07474545CEE&yid=67289AFF6305E306&vid=DB817633AA4F79B9&iid=CA4FD0336C81A37A&sid=9971A5E270697F23&eid=16D8618C6164A3ED&journal_id=1007-6301&journal_name=地理科学进展&referenced_num=2&reference_num=34