JA Morgan, Pataki, DE , Körner, Christian , Clark, HENRY , Del Grosso, SJ , Grünzweig, JM , Knapp, AK , Mosier, AR , Newton, PCD , and Niklaus, Pascal A. 2004. “Water Relations In Grassland And Desert Ecosystems Exposed To Elevated Atmospheric Co 2”. Oecologia, 140, Pp. 11-25.