[3][4] Considered one of the largest beels in the Brahmaputra valley of Lower Assam, it is categorised as representative of the wetland type under the Burma monsoon forest biogeographic region.

[5] The Dipor Bil is reported to provide, directly or indirectly, its natural resources for the livelihood of fourteen indigenous villages (1,200 families) located in its precincts.

The National Highway 37 borders the beel on the east and north-east and the Assam Engineering College Road on the north.

[5][7] The geologic and tectonic history of the region provide the links to the hydrology and channel dynamics of rivers and pattern, and intensity of land use in the area.

[3] The Basistha and Kalmani rivers and local monsoon run-off are the main sources of water to the lake, between May and September.

[10] These are: A total of 18 genera of phytoplankton are reported from the core area of the beel ecosystem out of which species of Oscilatoria and Microcystis are dominant.

Some of the globally threatened species of birds like spot-billed pelican (Pelecanus philippensis), lesser adjutant stork (Leptoptilos javanicus), Baer's pochard (Aythya baeri), Pallas's sea eagle (Haliaeetus leucoryphus), greater adjutant stork (Leptoptilos dubius).

Among the large number of migratory water fowl, the Siberian crane (Grus leucogeranus) regularly migrates to this habitat during its annual journey.

Over 50 commercially viable species of fish, belonging to 19 families have been identified, which supplies stock to other nearby wetlands and rivers.

[3][10] Wild Asian elephants (Elephas maximus), leopard, jungle cat and the protected barking deer, Chinese porcupine and sambar are found in the beel.

For the last few years, Deepor Beel has been dealing with too many water hyacinths growing, causing trouble for the people living there, according to residents' reports.

Over 120 species of birds have been listed in the sanctuary, including kingfishers, fishing eagles, adjutant storks and abundant varieties of ducks.