new lab member: Guobao Xu

Guobao Xu has joined the lab as a post-doc in January 2018.  Guobao has received a scholarship from the Chinese Academy of Sciences and will be in the Trouet Lab in Tucson for two years.  His research interests focus on stable isotopes in tree rings and their application for climate reconstruction, ecology, and carbon cycle research.  Geographically, Guobao's research focuses primarily on the Tibetan Plateau.