Plains Like Rapti Plain

Terai Plain

Plain

5.96 Mediocre

Ganges Plain

Plain

8.60 Great

Ganga-Yamuna Doab

Plain

8.10 Great

Indus Plain

Plain

7.65 Good

Mississippi Alluvial Plain

Plain

7.57 Good

Punjab Plain

Plain

7.19 Good

Brahmaputra Plain

Plain

6.88 Fair

Indo-Gangetic Plain

Plain

6.76 Fair

Osaka Plain

Plain

6.64 Fair

Paraná Plain

Plain

6.61 Fair

Colchic Plain

Plain

6.44 Fair

Awadh Plain

Plain

6.44 Fair

Assam Valley

Plain

6.42 Fair

Jianghan Plain

Plain

6.42 Fair

Darling Downs

Plain

6.24 Fair

Haryana Plain

Plain

5.80 Mediocre

Bhagirathi Plain

Plain

5.80 Mediocre

Rohilkhand Plain

Plain

5.34 Mediocre

Sylhet Plain

Plain

5.34 Mediocre

Amazon Basin

Plain

8.79 Great

North China Plain

Plain

8.39 Great

Nile Valley

Plain

8.35 Great

Tigris Plains (Syria/Iraq)

Plain

8.00 Great

Mesopotamian Plain

Plain

7.98 Good