XIAO Qing ) LIU Qin Huo ) LI Xiao Wen ) CHEN Liang Fu ) LIU Qiang ) XIN Xiao Zhou ). A FIELD MEASUREMENT METHOD OF SPECTRAL EMISSIVITY AND RESEARCH ON THE FEATURE OF SOIL THERMAL INFRARED EMISSIVITY[J]. Journal of Infrared and Millimeter Waves,2003,22(5):373~378