Based on the study of selenium-rich soil in Hangjiahu Plain, we found that the selenium-rich soil distributed around the Tai Lake. The amount of soil selenium was from 0.3 mg/kg to 0.5 mg/kg, and its average, standard deviation and coefficient of variation were respectively 0.389 mg/kg, 0.037and 9.4%. Correlation analysis indicated that selenium was closely related to soil organic matter, (n = 779, r = 0.550), but it was not related to soil pH. The result of further study showed that the possibility of the ...