Cobalt contents in the main soil types of Wutai Mountain were investigated.The results are summarised as follows:①The total cobalt contents of the main soils in Wutai Mountain range from 12 77 to 23 39mg/kg,with an average of 17 38mg/kg,Which is higher than the average level of China as well as the world.Parent material is the major factor to influence the total cobalt contents in the soils.②Correlation analysis shows that the cobalt content is significantly and positively correlated with the amount of t...