“中国是世界文明发达最早的国家之一”,我国是世界上最早的农作物起源中心之一,我国人民很早就对水旱灾害进行过斗争,兴建了不少闻名中外的水利工程,积累了丰富的经验,涌现出许多杰出盼治水专家。在我国史籍中,记载着历代水利事业的发展史,是我国几千年光辉灿烂的文化遗产的重要组成部分。其中西汉贾让的治河三策,在我国治河史上,影响极其深远。历代尤其是明清以来,对其三策议论纷纭,评价不一,可以说是“百家争鸣”。 “China is one of the earliest developed countries in the world.” China is one of the earliest centers of origin of crops in the world. Our people started a long struggle against floods and droughts and built quite a number of water conservancy projects well-known both at home and abroad A wealth of experience, emerged many outstanding hope flood control experts. In our historical records, we record the history of the development of water conservancy projects in various dynasties and are an important part of our glorious cultural heritage for thousands of years. Among them, the three policies of governing the river in Jiahan, the Western Han Dynasty, have a profound and far-reaching impact on the history of governing rivers in our country. Since the Ming dynasties, especially since the Ming and Qing dynasties, there are many opinions and opinions on its three policies, which can be described as “a hundred schools of thought”.