190 Geography Topography:4 steps staircase 中国地形图 Northeast plain Elevation: 5001000 Loess Plateau Elevation: 10002000 North China plain w Middle-lower Yangtze plain Qinghai-Tibet Plateau Continental shelf Elevation:4000 Elevation >-200 中 • Topography: 4 steps staircase Geography Qinghai-Tibet Plateau Elevation : 4000 Northeast plain Elevation : 500~1000 Loess Plateau Elevation : 1000~2000 North China plain Middle-lower Yangtze plain Continental shelf Elevation : >- 200