中文摘要：

根据碳钢在分别添加了Cl^-、SO4^2-和Cl^-＋SO4^2-的土壤中接菌与灭菌两种条件时的电化学阻抗谱特征，研究了硫酸盐还原菌（SRB）对碳钢腐蚀的影响。试验结果表明，三种盐分土壤中SRB均加速了碳钢的腐蚀速度。当Cl^-灭菌土壤中添加SO4^2-时，26天后碳钢腐蚀速度显著增加；当SO4^2-灭菌土壤中添加Cl^-时，碳钢腐蚀速度减小。

英文摘要：

The EIS characteristics of carbon steel in Cl^-, SO4^2- and Cl^- ＋SO4^2- soils with or without SRB were summarized. SRB could promote the corrosion rate of carbon steel in three kinds of soil. When SO4^2- was added to the soil containing Cl^-, the corrosion rate of carbon steel increased greatly in the soil without SRB after 26 days. On the contrary, when Cl^- was added to the soils contained SO4^2-, the corrosion rate of carbon steel decreased obviously in the soil without SRB.