成都平原位于四川盆地西部,西面是龙门山、邛崃山,东面是龙泉山,面积约9500平方公里;地势西北高,东南低,海拔400～750米,坡降为千分之三至四;为岷江、湔江、石亭江、绵远河等河流出山口冲积的扇形地连接而成。平原地区河网结构成辐射状,从扇顶向周围辐散成许多分支,至金堂、新津又合汇入沱江、岷江。平原周围分布有小片丘陵。气候属亚热带温润气候区,热量丰富,雨量充沛,四季分明,自然条件十分优 Chengdu Plain is located in the western Sichuan Basin, west of Longmen Mountain, Qionglai Mountain, the east is Longquan Mountain, an area of ​​about 9500 square kilometers; topography northwest high, southeast low, elevation of 400 to 750 meters, down to three thousandths to four ; For the Minjiang River, Han River, Shek Ting Jiang, Mianyuan River and other outflow alluvial fan connected to form. River plains in the plains area into a radial pattern, diverging from the fan roof to the surrounding many branches, to Jintang, Xinjin and merge into Tuojiang, Minjiang River. There are small hills around the plains. Climate is subtropical climate zone, rich in heat, abundant rainfall, four seasons, the natural conditions are very good