含 CO_2的地下水,对地质作用有着很密切的关系:岩石的风化,矿床和土壤的交替及取代,工程地质条件,水文地质条件以及水工建筑物的侵蚀等等均与含有 CO_2的地下水有莫大的关系。兹将地下水中有关二氧化碳作用的一些研究和理论,作一介绍。水中的二氧化碳大多是来自空气,其中有一部分来自水中生物的靳陈代谢和其尸骸的腐败,有一部分由于火山的喷气及诸物变质作用。空气中的 CO_2含 Groundwater containing CO2 is closely related to the geological function: weathering of rocks, alternation and replacement of deposit and soil, engineering geological conditions, hydrogeological conditions and erosion of hydraulic structures, etc., have a great impact on the groundwater containing CO_2 Relationship. I hereby present some of the research and theories on the role of carbon dioxide in groundwater. Most of the water’s carbon dioxide comes from the air, and some of it comes from the metabolism of aquatic organisms and the corruption of its remains, due in part to the volcanic jet and the metamorphism of various things. Air in the CO_2 containing