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作者根据Keeling等人提出的1970~1988年大气CO2含量随时间变比进行统计,指出大气CO2含量按指数变化递增。据此.对近年大气CO2含量进行预测,到2050年时将增至454×10-6,较目前增加约30%。由于大气CO2分压上升,导致CO2向海洋转移、作者采用Li提出的指数变化模式,以Holland给出的海水中无机碳逗留时间8.0×104年代入计算。到2050年时,海水碳酸盐系统仅可容纳来自大气的CO21.1×1010t。因此必须引起人们控制CO2向大气的排放。鉴于计算过程中未考虑海水有机生物体的影响及颗粒CaCO3对缓冲CO2所作贡献,因此,实际情况会好于本文计算结果。
According to Keeling et al.’s statistics of atmospheric CO2 content over time from 1970 to 1988, the authors point out that atmospheric CO2 content increases exponentially. Accordingly. The prediction of the atmospheric CO2 content in recent years will increase to 454 × 10-6 by 2050, an increase of about 30% from the current level. Due to the increase of partial pressure of atmospheric CO2, which leads to the transfer of CO2 to the ocean, the author uses the exponential change model proposed by Li to calculate the inorganic carbon residence time in seawater given by Holland for 8.0 × 104 years. By 2050, the seawater carbonate system can only accommodate CO21.1 × 1010t from the atmosphere. It is therefore necessary to induce people to control the emission of CO2 to the atmosphere. In view of the fact that the influence of seawater organic organisms and the contribution of granular CaCO3 to buffer CO2 are not considered in the calculation process, the actual situation will be better than the calculation results in this paper.