With contributions from economists, ecologists, and government agency professionals, this book provides a multidisciplinary approach to environmental decision at a watershed level. It integrates ecological risk assessment (ERA) and economic analysis to improve environmental management in a diversity of watersheds. It includes different points of view concerning the extent to which each study achieves an ideal framework for the integration of ERA and economic analysis. With a practical focus on real-world decisions, it includes the effects of urban development, mining, and water withdrawal for agriculture and also evaluates the socioeconomic and institutional dimensions of decision making.