明、清以来对海洋河进入南、北渠水量的比例始有记述,并有不同说法。有三七说、四六说、各半说及不可能有固定比例的观点。还有导致有固定比例原因的不同解释。本文在实测水文资料不足的情况下用水文与水力学观点对此问题进行一些探讨,以供商榷。 Since the Ming and Qing dynasties, there has been a description of the proportion of oceanic rivers entering the south and north canals, and different opinions have been put forward. March 27 said that April Fri said there is no chance that there will be a fixed ratio of views among the different parties. There are also different explanations leading to a fixed proportion of reasons. In this paper, hydrological and hydraulics point of view in the case of lack of hydrological data to explore this issue for discussion.