Journal Article 1 Research Support, U.S. Gov't, Non-P.H.S. 1 carbon dioxide 1 ecosystem water-use eddy covariance 1 evapotranspiration 1 mesquite (Prosopis velutina) 1 mehr ... net ecosystem production 1 riparian 1 sacaton semiarid (Sporobolus wrightii) 1 vegetation change 1 water-use efficiency 1 woody plant encroachment 1 weniger ...