Lammers BDC Restoration (IMAGE) American Society of Agronomy Caption One of the stream restoration study sites in Colorado. Note the trees lining the sides of the stream to prevent erosion. Credit Rod Lammers Usage Restrictions Use with story only. 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.