ZHANG Tong-rui, ZHAO Geng-xing, GAO Ming-xiu, WANG Zhuo-ran, JIA Ji-chao, LI Ping, AN De-yu. Soil Salinity Estimation Based on Near-Ground Multispectral Imagery in Typical Area of the Yellow River Delta[J]. Spectroscopy and Spectral Analysis, 2016, 36(1): 248