Geochemical background values for the soil in the Songjia region, Yibin, Sichuan and their significance

The geochemical background values are calculated for the soil from the Songjia region, Yibin, Sichuan, and correlated with geochemical background values and base values for the soil from other parts in China.The results of research in this study have proposed useful geochemical information for the soil resource and environmental assessment and agricultural economic development.