Digging Deep in China Cropland (IMAGE) Michigan State University Caption Michigan State University PhD candidate Anna Herzberger works with a farmer in Heilongjiang, China, to take soil samples from a field once dedicated to soy crops. Credit Sue Nichols, MSU Center for Systems Integration and Sustainability Usage Restrictions With credit, above 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.