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一、概况 岷江发源于四川省松潘县境岷山山脉的羊膊、弓杠两岭,至宜宾汇入长江,全长669公里,是长江上游的主要支流之一。 乐山至宜宾162公里段为氓江中下游河段,流经四川盆地西南边缘的丘陵地带,右岸山势陡峭,左岸比较低缓,河床为大卵石复盖(直径约10～20厘米)。河身受两岸山岩的约束,宽窄相间,除有两段约20公里长
I. Introduction The Minjiang River originates from the sheep’s arms and arches of the Min Shan Mountains in Songpan County, Sichuan Province. It reaches Yibin and flows into the Yangtze River. It is 669 kilometers in length and one of the major tributaries in the upper reaches of the Yangtze River. Leshan to Yibin 162 km section of the middle and lower reaches of the Tam River, flowing through the hilly area of the southwestern margin of the Sichuan Basin, the right bank is steep, the left bank is relatively slow, covered with cobbles (diameter of about 10 to 20 cm). River body by the rock and river constraints, width and white, except for two sections of about 20 km long