黄河干流实际来水量不断减少的成因分析
刘昌明,张学成
Causal Analysis on Actual Water Flow Reduction in the Mainstream of the Yellow River
LIU Changming, ZHANG Xuecheng
地理学报 . 2004, (3): 323 -330 .  DOI: 10.11821/xb200403001