Soil Comparison (IMAGE) Colorado State University Caption On the left is cambisol, a type of grassland soil, and on the right is podzol, an example of a forest soil. Credit Francesca Cotrufo/Colorado State University Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.