The Irrigation Channel System Mapping and Its Stucture Analysis for the Zhangye Oasis in the Middle Heihe River Basin
HU Xiao-li,LU Ling,MA ming-guo,LIU Xiao-jun
Remote Sensing Technology and Application . 2008, (2): 208 -213 .  DOI: 10.11873/j.issn.1004-0323.2008.2.208