This course explores abiotic and biotic controls on the cycling of water and chemicals within watershed systems. Students gain an understanding of the coupled roles of climate, hydrology, and biogeochemistry in regulating the fate of nutrients, carbon, and pollutants in watersheds. The class also features six guest lectures on issues at the forefront of watershed science. Upon successful completion of the course, students have acquired scientific knowledge that is relevant to interpreting watershed-based observations and to informing watershed-management decisions.Prerequisites for this course are Environmental Hydrology (F&ES 714b) and Ecosystems and Landscapes (F&ES 530a). Students who have not completed these prerequisites should consult with Professor Saiers about permission to enroll in the course.