| he responses of plants to climate change are influenced by changes in key climatic characteristics, and drought severity is often one of these key climatic characteristics for Great Basin vegetation. As part of a larger study to examine the effects of environment on Utah and western junipers, Juniperus osteosperma and J. occidentalis, the primary goal of this project was to determine if the hydrogen and oxygen isotopes in cellulose and xylem water were predictably related to drought severity. Samples of juniper twigs were collected from 10 sites located across geographic and topographic environmental gradients. Cellulose and xylem water were extracted from these samples, then processed for D/H and... |
