Plains Like Salween Plain

Chindwin Plain

Plain

4.88 Poor

Sittang Plain

Plain

4.60 Poor

Brahmaputra Valley

Plain

8.20 Great

Coromandel Coast plain

Plain

7.45 Good

Chao Phraya Plain

Plain

6.92 Fair

Brahmaputra Plain

Plain

6.88 Fair

Central Plain of Thailand

Plain

6.72 Fair

Orinoco Plains

Plain

6.67 Fair

Mekong Plain (Cambodia)

Plain

6.42 Fair

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

Savé Valley

Plain

5.34 Mediocre

Volta Basin

Plain

5.29 Mediocre

Lena River Plain

Plain

5.29 Mediocre

Ussuri Plain

Plain

5.08 Mediocre

Benue Trough

Plain

4.88 Poor

Irtysh Plain

Plain

4.42 Poor

Tobol River Plain

Plain

4.14 Poor

Tigris-Euphrates Plain

Plain

9.25 Excellent

Bengal Delta

Plain

9.10 Excellent

Mekong Delta plains

Plain

8.85 Great

Amazon Basin

Plain

8.79 Great