摘要
通常认为,导致地球大气圈CO2温室气体增加的主要原因是人类对化石燃料的燃烧。笔者研究表明,导致地球大气圈CO2气体的增加还有更重要的来源,即自然因素。它们是火山气体、泥火山气体、矿床中的气体(金属矿、盐矿、煤矿、石油天然气藏等),与地震、海啸、洋中脊、洋壳蛇纹石化有关的气体,以及与森林大火有关的地球排气等等。而海洋—大气、土壤—大气的碳循环作为CO2与CH4的汇涉及到CO2、CH4的演化与循环。相比之下,人类活动在碳循环中的作用是很小的。只有全世界科学家通力合作,观测研究CO2、CH4气体的源与汇及其通量,进而对温室气体CO2与CH4做半定量、定量的评价,才能确定人类活动与地球排气对环境的影响孰主孰次。
It is generally believed that the increase of greenhouse gases（CO2,CH4） in the atmosphere is mainly caused by the burning of fossil fuels.This paper shows that there are some other important sources of the increase of greenhouse gases（CO2,CH4） by natural factors,such as volcanic gases,mud-volcanic gases,the gases from mineral deposits（metal mines,salt mines,coal mines,oil and gas reservoirs,and so on）,the gases related to earthquake,tsunami,oceanic ridge,ocean-crust serpentinization,the earth outgassing related to forest fire.The ocean-atmosphere carbon cycle,soil-atmosphere carbon cycle are related to the sink,source and the evolution and cycle for CO2 and CH4.The burning of fossil fuels by human is probably a minor factor for carbon geochemical cycle of the earth.The carbon budget could be calculated and the evolution and origin of greenhouse gases（CO2,CH4） could be evaluated and recognized by observing and investigating the source,sink and flux of CO2 and CH4.It is only through the combination and cooperation of the global scientists in the different fields that the important issue could be performed.
出处
《中国科学院院刊》
2012年第2期226-233,共8页
Bulletin of Chinese Academy of Sciences
