virgatum L.) and high biomass sorghum (Sorghum bicolor L. Moench), were measured using
the eddy covariance technique during the 2012 and 2013 growing seasons to quantify and
compare evapotranspiration (ET) and ecosystem water use efficiency (EWUE). Peak
growing season ET from the switchgrass field was approximately 6 mm d− 1 in both years;
whereas, the sorghum ET reached 6.7 in 2012 and 4.8 mm d− 1 in 2013. While both species …