Plains Like Irtysh Plain

Ussuri Plain

Plain

5.08 Mediocre

Tobol River Plain

Plain

4.14 Poor

Wei River Plain (Guanzhong)

Plain

7.82 Good

Manchurian Plain

Plain

6.85 Fair

Fergana Valley

Plain

6.61 Fair

Songhua River Plain

Plain

6.42 Fair

Liao Plain

Plain

6.42 Fair

Dnieper Lowland

Plain

6.42 Fair

Maritsa Plain

Plain

5.98 Mediocre

Kura-Araks Lowland

Plain

5.98 Mediocre

Amu Darya Plain

Plain

5.96 Mediocre

Syr Darya Plain

Plain

5.78 Mediocre

Tone Plain

Plain

5.35 Mediocre

Amur-Zeya Plain

Plain

5.29 Mediocre

Lena River Plain

Plain

5.29 Mediocre

Kama Plain

Plain

5.29 Mediocre

Dnister Plain

Plain

4.88 Poor

Chindwin Plain

Plain

4.88 Poor

Salween Plain

Plain

4.60 Poor

Sittang Plain

Plain

4.60 Poor

Tigris-Euphrates Plain

Plain

9.25 Excellent

Punjab Plains

Plain

8.55 Great

Chengdu Plain

Plain

8.45 Great

North China Plain

Plain

8.39 Great