 The study analyzed seasonal variations in energy balance components on three different surfaces, irrigated cropland, Inca, Alpine Meadow, Aru, and Spruce Forest, Guantan, using eddy covariance, EC, systems and a large aperture centimeter loss in the Heihara River basin, China. The results showed that the main EC source areas were within a radius of 250m at all sites, while the main loss source area stretched along a path line approximately 2,000m long and 700m wide. The sensible heat flux was the main term of the energy budget during the dormant season, while the latent heat flux dominated the energy budget during the growing season. An oasis effect was observed at Inca. The sensible heat fluxes measured by Loss at Aru were larger than those measured by EC at the same site due to the energy imbalance phenomenon, heterogeneity of underlying surfaces and differences in source areas. This article was authored by SM Lu, ZW Su, WZ Wang, and others. We are article.tv, links in the description below.