50年代以来黄河下游河道的萎缩及其原因*
陈志清
CHANNEL SHRINK AND ITS CAUSE AT THE LOWER REACHESOF THE YELLOW RIVER SINCE THE 1950’S
Chen Zhiqing
地理研究 . 1995, (3): 74 -81 .  DOI: 10.11821/yj1995030009