The second steppe consists of the Inner Mongolia, loess and Yunnan-Guizhou plateaus, and the Tarim, Junggar and Sichuan basins, with an average attitude of1,000 meters.

• 第二个台阶是由内蒙古高原、土高原、贵高原和塔里木盆地、噶尔盆地、川盆地构成，平均海拔1000米左右。