Estimated Empirical Nitrogen Deposition Critical Loads for Nitrate Export from California Forests and Shrublands

Mark E. Fenn1, Susan Schilling1, Ken Hanks1 and Stuart B Weiss2, (1)USDA Forest Service, Pacific Southwest Research Station, Riverside, CA, United States, (2)Creekside Center for Earth Observation, Menlo Park, CA, United States