Li Daoyuan (about 470, 527) county of Zhuo of Fan Yang of Northen Wei Dynasty (today Heibei Zhuo city) person, word be apt to is long. Too with 18 years (494) with a high official in ancient China advocate customer man follows make one"s rounds of Xiao Wendi north, inspect Huai Shuo on the way (today south in relief county of Inner Mongolia solid) , Wu Chuan (today Inner Mongolia Wu Chuan county on the west) , stroke dark (today Inner Mongolia 4 child southeast Wang Qi) , Rou Xuan (today Inner Mongolia is promoted and prefectural northwest) wait press down and. The Shi Yu that research a book is after history, have successively held the posts of Ying plain county again viceregal, Ji Zhou is pressed down east your home is long history, feudal provincial or prefectural governor of state of viceregal, Dong Jing mixes rash Yang Jun Yin of drive Shi Zhongwei, Henan. Xiao Changsan year (527) to close right ambassador, to Yin Panyi (today Shaanxi Xi"an city is northeast) , be held sb in respectful awe to kill by treasure of desolate of harmony state feudal provincial or prefectural governor. For politics power fierce, execute the law austere. Academic read extensively, take care changes of the aqueduct that study demand and town city to promote useless wait for historical geography phenomenon. For " water classics " make note, about smooth 3 years (522) write the geographical monumental work that holds a literary value concurrently " water classics is noted " 40. Yuan of write, former not be confined to is geographical, but circulate at later ages, only " water classics is noted " one book.
·Bring from " Chinese history big dictionary " (Shanghai dictionary press 2010 edition) the 2137th page.