16世纪末以来北运河水系演变及驱动因素
苏绕绕(
), 赵珍()
), 赵珍()
The Evolution and Driving Factors of the North Canal System Since the End of the 16th Century
Raorao SU(), Zhen ZHAO()
), Zhen ZHAO()
图1. 16世纪以来流域河流分级方案
Fig.1. River classification scheme since the 16th century
