Ponderosa Pine Tree Ring Stable Isotopes, Oregon
Carbon and oxygen isotope data from annual tree rings in Ponderosa Pine collected in Oregon.  The data was used in 
Ulrich, D. E. M., C. J. Still, J. R. Brooks, Y. Kim, and F. C. Meinzer. 2019. Investigating old-growth ponderosa pine physiology using tree-rings, δ13C, δ18O, and a process-based model. Ecology …