Inferring biome-scale net primary productivity from tree-ring isotopes

Neil Pederson1, Mathieu Levesque1, A. Park Williams1, Martina Lena Hobi2, William Kolby Smith3 and Laia Andreu-Hayles4, (1)Lamont -Doherty Earth Observatory, Palisades, NY, United States, (2)University of Wisconsin Madison, Madison, WI, United States, (3)University of Arizona, Tucson, AZ, United States, (4)Columbia University of New York, Tree-Ring Laboratory, Palisades, NY, United States