Hubbard Brook Experimental Forest (IMAGE) USDA Forest Service - Northern Research Station Caption Hubbard Brook is part of the Hubbard Brook Experimental Forest, where a substantial increase in forest water use was recorded in one watershed following research in which soil was treated with calcium. Credit U.S. Forest Service Usage Restrictions Credit U.S. Forest Service 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.