Soil Samples (IMAGE) University of Missouri-Columbia Caption Langston Simmons, former MU graduate student and lead author on the study, takes soil samples from a logging forest. Credit MU News Bureau 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.