利用植被指数(VI)提取遥感影像 荒漠林覆盖度信息的差异性研究 
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Study on the Differences among 3 Kinds of Vegetation Indexes (VI) in Extracting Coverage of Desert Forest with Remote Sensing Image
LI Yuanyuan, SONG Yuyang, JIANG Xiaolu
石河子大学学报 . 2015, (1): 72 -77 .  DOI: 10.13880/j.cnki.65-1174/n.2015.01.014