Springfield Corners (IMAGE) University of Wisconsin-Madison Caption These are wind turbines near Springfield Corners, Wisconsin. Cropland in the Yahara watershed has an overabundance of soil phosphorus. Researchers say that makes clean lakes and rivers possible only with a revolution in land and water management. Credit UW-Madison Water Sustainability and Climate project 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.