It has been said that "water is the oil of the 21st century." Comprehensive in scope and multidisciplinary in approach, here is a guide to developing and implementing a watershed management plan. By evaluating a watershed management plan based on its economic, biophysical, and social aspects, the book presents a integrated approach for developing plans which address the many stakeholders in watershed health and use. It equips readers with the necessary tools and techniques to develop sound watershed management policy and practice from problem definition and goal setting to electing management strategies and procedures for monitoring implementation. This new edition has been updated throughout with new technology, legislation, references, and an improved art program. Increased international coverage of watershed issues reflects the growing importance of water as a truly global issue.