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洪雅地处四川盆地西南边缘,斜置于峨眉山、大相岭和总岗山之间。最低海拔高度425m,最高海拔高度3522m。整个地形处于峨眉山断块和四川中台拗的交汇处。属凉山山源与四川盆地之间,从平原到高原的过渡地带。本县河流属大渡河的支流青衣江水系。气候主要受四川盆地、峨眉山、凉山气候以及川藏高原和大渡河气候影响。又处于中亚热温气候区,加之地形复杂多样,立体
Hongya is located on the southwestern edge of the Sichuan Basin and is located diagonally between Emeishan, Daxiangling and Jinggangshan. The lowest altitude is 425m and the highest altitude is 3522m. The entire terrain lies at the junction of the Emeishan fault block and the Sichuan Zhongtai Mountain. It belongs to the transitional zone between the Liangshan Mountain Source and the Sichuan Basin, from the plain to the plateau. The river in this county belongs to the tributary of the Dadu River, the Qingyi River system. The climate is mainly affected by the Sichuan Basin, Emeishan, Liangshan climate and the climate of the Sichuan-Tibet Plateau and the Dadu River. It is also located in the warm and warm climate of Central Asia, combined with a complex and diverse terrain.