【摘要】 本文根据波文比一能量平衡法，利用观测资料计算了荒漠一绿洲交界处绿洲农田作物（棉花、水稻）的显热和潜热，并进行了分析和比较．更多还原

【Abstract】 In the transitional zone of desert-oasis, it is drought and raiuless. The growth ofcrops depends on irrigate. Rice and cotton is the two primary crops. Their soil moisturehave obvious difference. The research about the sensible heat and latent heat transporta-tion course in different soil moisture conditions has a certain gUiding significance to agri-cu1tural produce. Based on the data observed at cotton and rice land in Aksu Station forwater Budget Experiment, chinese Academy of &iences ) the sensible and 1atent heat nuxhas been calculated with Bowen-ratio energy balance method in this paper. The coures ofsensible heat and latent heat transportation in oasis crop1and varies tvith surface conditionsand the advection change between oasis and desert, and forms its feature under the director undirect influence of advection.The results after ana1ysis show that the dai1y course of sensible and 1atent heat fluxare not vary in swichronism, both at rice 1and and at cotton 1and. At night tl1e direction ofthe sensible heat flux is into crop, so is the 1atent heat flux. In every ear1y morning, the&rection of the latent heat flux changed into the atmosphere, but the sensib1e heat nuxchange rhythmslessly. The 1atent heat flux increase to the daily makimum at 15: Oo- 16:oo(Beijing time). Both at rice land and at cotton 1and , the latent heat flux is more largerthan sensible heat flux, it is to say that surface heat is principally used to evaportationwhich consumes heat. Because rice land is moister than cotton land l the sensib1e heat fromatmosphere flowtng to crop surface is larger at rice land than at cotton land. Another re-sults which we obtained from this experiment is that the coagulated water on the oasis cropsurface should not be neglected, espcially at night. This means that the coagulated courseis important in the water and heat transportation course of surface atmospheric in the re-gion layer and has ecological significance in water and heat balance in surfuce.更多还原