Photodegradation accelerates ecosystem N cycling in a simulated California grassland

This research was supported by the U.S. Department of Agriculture (USDA) UV-B Monitoring and Research Program, Colorado State University, under USDA National Institute of Food and Agriculture Grant 2016-34263-25763. S. Asao was also supported by Australian Research Council Grant CE140100008. AmeriFlux data used were supported in part by the Office of Science (BER), U.S. Department of Energy, Grant No. DE-FG02-03ER63638. W.J. Parton was also supported by USDA cooperative agreements (58-5402-4-001, 59-1902-4-00), the USDA National Institute of Food and Agriculture (NIFA) project (2015-67003-23456), and University of Illionois Biofuel project (090634-16921).