汉代学者刘歆在给汉成帝的《上〈山海经〉表》中说:禹治水时,“益与伯翳士驱禽兽,命山川,类草木,别水土……逮人迹之所希至,及舟舆之所罕到。内别五方之山,外分八方之海,纪其珍宝奇物,异方之所生,水土草木禽兽昆虫麟凤之所上,祯祥之所隐,及四海之外,绝域之国,殊类之人。禹别九? The Han Dynasty scholar Liu Xin in the Han Emperor Cheng Han’s “on the table,” said: “When the flood control,” benefits and Bo Qishi drive animals and beasts, life mountains and rivers, grass, do not soil and water ... ... arrest the trace of what is desired, And the boat to the public by the rare .In addition to the five sides of the mountain, outside the octave of the sea, Ji its treasures of the strange things, born of the opposite party, water and soil plants and animals insect Linfeng on the premises, Zhen Chen hidden, and universal In addition, the vast country, special category of people.