A STUDY OF SPECTRAL RADIATION UPON SOME CROPLAND IN THE ZHUJIANG DELTE,CHINA
对太阳总辐射和某些植被的反射及透射辐射的分光测量

Global, near-infrared, visible and ultraviolet radiation upon sugarcane fields in the Zbujiang Delta, as well as their reflection, transmission and absorption were measured in 1982 by using EKO pyrancmeters with WG-295, GG-395, RG-715 filters. It is shown that.1. Under clear sky, when the sun's altitude is higter then 35°, the proportion of di ferent spectral lands to the total are as follows, infrared 53%, visible 43%, ultraviolet 4 %. For annual average, visible radiation accounts for 48%.2. The albedoes ...