Many thanks to Eastern Kentucky University's College of Arts & Sciences and Department of Biological Sciences as well as one anonymous donor for helping make this trip possible.

Also, many thanks to Dr. Qi-bin Zhang of The Institue of Bontany's Tree-Ring Laboratory for funding the research in the Sichuan Province, Zong-Shan Li. and Teacher Zhang of the West-China Botanical Garden for managing logistics in Dujiangyan City and Chengdu in the Sichuan Province.