Effects of nitrogen enrichment on soil organic matter in tropical forests with different ambient nutrient status

Elliot Vaughan1, Daniela F Cusack2, William H McDowell3 and Erika Marin-Spiotta1, (1)University of Wisconsin Madison, Madison, WI, United States, (2)Colorado State University, Department of Ecosystem Science and Sustainability, Fort Collins, United States, (3)University of New Hampshire, Department of Natural Resources and the Environment, Durham, United States