抄録
Daily variations of sensible and latent heat fluxes were observed on the same.days in summer, autumn and winter in various land uses such as urban area, residential area and greenbelt area in Utsunomiya by eddy correlation method. Sensible heat fluxes in urban area are approximately 40-100(w/m^2) larger than in rural area and latent heat fluxes in urban area are approximately 20-80(w/m^2) smaller than in rural area. The average Bowen-Ratios in urban area, residential area and greenbelt area are 2.2, 1.3 and 0.7 respectively in summer and those values in.autumn-and winter become larger.
