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岷江又称都江,发源于岷山南麓,全长745公里,是四川江河中水量最大的一条支流.涪江是嘉陵江的主要支流,发源于岷山的松潘县,全长670公里,在合川与嘉陵江汇合.两江上游地处四川省阿坝藏族自治州,是四川省西缘盆周与青藏高原东南边缘的过渡地带.这里地形复杂,气候多变,植物丰富,是研究植物的重
Minjiang River, also known as Dujiang, originated in the southern foot of Minshan, a total length of 745 km, is the largest of the rivers in Sichuan tributaries of the Fujiang River is the main tributaries of the Jialing River, originated in Minshan Songpan County, a total length of 670 km in Hechuan and Jialing River confluence.The upper reaches of the two rivers is located in Aba Tibetan Autonomous Prefecture in Sichuan Province, is the transition zone between the basin periphery of the western edge of Sichuan Province and the southeastern edge of the Qinghai-Tibet Plateau where the terrain is complex, the climate is changeable, plants rich, is the study of plant weight