Seasonal means of major microclimate variables at FEF during the growing seasons under study.

Rnet: net radiation (W m-2), GEC: ground heat flux (W m-2) at EC site, bare field (Gbare), brome grass field (Ggrass), and barley field (Gbarley), LE: latent heat flux (W m-2), VPD: vapor pressure deficit (kPa), θly: volumetric soil moisture content (m3 m-3) in irrigated vegetated lysimeter at 15 cm depth average from three lysimeters in summer 2012 and averaged from 0–20 cm depths from three lysimeters in summer 2013, θunly: volumetric soil moisture content (m3 m-3) in unvegetated lysimeter in summer 2013, θFEF: an average volumetric soil moisture content (m3 m-3) at 15 cm depth from brome grass, barley and bare field, Ts: an average soil temperature (°C) at 15 cm from brome grass, barley and bare field, and U: wind speed (m s-1) at 2 m height at meteorological station. First column represents the major variables measured, second and third column are mean ± standard error of each variable for the 2012 and 2013 growing season.a More than two significant digits are needed for volumetric soil moisture contentb volumetric soil moisture content data were available from June –27July, 2012c volumetric soil moisture content in a vegetated lysimeter for 2013 growing seasond volumetric soil moisture content in an unvegetated lysimeter for 2013 growing seasonSeasonal means of major microclimate variables at FEF during the growing seasons under study.