Spatiotemporal characteristics of reference crop evapotranspiration in inland river basins of Hexi region. Variation of Priestley-Taylor Model Parameter in Rain Fed Spring Maize Field Using Gene-Expression Programming method and geographical location information to simulate evapotranspiration in Hunan and Hubei Provinces Trends in reference crop evapotranspiration and possible climatic factors in the North China Plain Spatiotemporal variations in the reference crop evapotranspiration on the Loess Plateau during 1961-2009 AnevaluationoftheHargreavesmethodforestimatingreferenceevapotranspirationindifferentgrasslandtypesinInnerMongolia,China Calibration of relevant parameters of reference crop evapotranspiration with genetic algorithm Spatiotemporal variations of the reference crop evapotranspiration in the arid region of northwest China during 1961-2011 Spatial and temporal variations of reference crop evapotranspiration and its influencing factors in the North China Plain Change in crop evapotranspiration and associated influencing factors under screenhouse conditions