Agro-ecological zones of Bangladesh

Bangladesh has been tentatively divided into 30 agro-ecological zones. These 30 agro-ecological zones have been subdivided into 88 agro-ecological sub-regions which are given billow-
1) Old Himalayan Piedmont Plain (4,008 sq km)
2) Active Tista Floodplain (830 sq km)
3) Tista Meander Floodplain (9,468 sq km)
4) Karatoya-Bangali Floodplain (2,577 sq km)
5) Lower Atrai Basin (851 sq km)
6) Lower Punarbhaba Floodplain (129 sq km)
7) Active Brahmaputra-Jamuna Floodplain (3,190 sq km)
8) Young Brahmaputra and Jamuna Floodplain (5,924 sq km)

Map-2: Agro ecological Zones of Bangladesh

9) Old Brahmaputra Floodplain (7,230 sq km)
10) Active Ganges River Floodplain(3,334 sq km)
11) High Ganges River Floodplain (13,205 sq km)
12) Lower Ganges River Floodplain (7,968 sq km)
13) Ganges Tidal Floodplain (17,066 sq km)
14) Gopalganj-Khulna Beels (2,247 sq km)
15) Arial Beel (144 km)
16) Middle Meghna River Floodplain (1,555 sq km)
17) Lower Meghna River Floodplain (909 sq km)
18) Young Meghna Estuarine Floodplain (9,269 sq km)
19) Old Meghna Estuarine Floodplain (7,740 sq km)
20) Eastern Surma-Kushiyara Floodplain (4,622 sq km)
21) Sylhet Basin (4,573 sq km)
22) Northern and Western Piedmont Plains (4,038 sq km)
23) Chittagong Coastal Plain (3,720 sq km)
24) St. Martin's Island (8 sq km)
25) Level Barind Tract (8 sq km)
26) High Barind Tract (16 sq km)
27) North Eastern Barind Tract (1,079 sq km)
28) Madhupur Tract (4,244 sq km)
29) Northern and Eastern Hills (18,171 sq km)
30) Akhaura Terrace (113 sq km)
For more see the pdf of the main article at PDF of AGRO-ECOLOGICAL ZONES OF BANGLADESH