魚海、合河的位置與交通路綫考

A Study on the Location and Traffic Route of Yuhai and Hehe

青海與甘肅兩省交匯處的祁連山脈,雪水匯集的河流不僅孕育了河西走廊的緑洲生命,還溝通了南北方向的交通,形成了諸多的交通孔道與山間要隘。安史之亂之前,吐蕃屢次利用這些孔道侵犯河西地區。開元天寶之際,唐軍大規模的向南翻越祁連山主動進軍.

In the first year of Tianbao天寶元年(742)of the Tang Dynasty,Military Commissioner of Hexi(Hexi jiedushi河西節度使)Wang Chui王倕commanded An Bozhu安波主to attack Tibetan forces and formulated a strategic march that started from the southern mountains of Dadou大斗南山and returned by taking the western road of Jiankang建康西路.Wang Chui commanded three thousand infantries and calvaries personally to station at the five roads that Tibetan forces might take to reinforce the marched army.The strategy proved its effectiveness by defeating the Tibetan forces at Yuhai魚海.Yuhai and Hehe合河were important military strongholds on the Western road of Jiankang.Yuhai is located in Gangcha county剛察縣that lies to the north of Qinghai Lake青海湖.Hehe refers to upstream river of Shule River疏勒河along the Qilian Mountains祁連山.The traffic routes of Yuhai and Hehe still serve as important channels that connect Qinghai and Gansu甘肅,and they provide important clues to the study of the traffic passes that connect the northern and southern areas of Qilian Mountains.