Deuterium enriched irrigation indicates different forms of rain use in shrub/grass species of the Colorado Plateau

@article{Schwinning2001DeuteriumEI,
  title={Deuterium enriched irrigation indicates different forms of rain use in shrub/grass species of the Colorado Plateau},
  author={Susanne Schwinning and Kim Davis and Leah D'Aurora Richardson and James R Ehleringer},
  journal={Oecologia},
  year={2001},
  volume={130},
  pages={345-355}
}
We contrasted the seasonal use of simulated large rain events (24 mm) by three native species of the arid Colorado Plateau: the perennial grass Hilaria jamesii and two shrubs Artemesia filifolia and Coleogyne ramosissima. Deuterium-enriched water was used to distinguish shallow "pulse" water from water in deeper soil layers that were unaffected by the water input. We also measured the leaf gas exchange rates of watered and unwatered control plants for 5 days after the rain event. H. jamesii had… CONTINUE READING