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四川位于中国内陆西部腹地,占据着四川盆地的绝大部分;四面环山,气候温和湿润,总面积48.5万多平方公里。四川省地形西高东低,大致西部为高原、山地,海拔多在4000米以上;东部为盆地、丘陵,海拔多在1000～3000米之间。四川盆地以浅丘和平原为主,是我国四大盆地之一,面积16.5万平方公里,盆地内海拔200～750米,由北向南倾斜。四川居民主体是由古代多
Located in the hinterland of the western hinterland of China, Sichuan occupies the vast majority of the Sichuan Basin; surrounded by mountains and mountains, the climate is mild and humid with a total area of over 485,000 square kilometers. The topography of Sichuan Province is high in the west and low in the east, roughly in the west of the plateau and mountains, with an altitude of more than 4,000 meters. The eastern part is a basin and hills with an elevation of more than 1,000 to 3,000 meters. Sichuan Basin is dominated by shallow mounds and plains. It is one of the four major basins in China with an area of 165,000 square kilometers and its elevation within the basin ranges from 200 to 750 meters and slopes from north to south. The mainstay of Sichuan residents from ancient times