Beel

A beel near Aloa village, Tangail District, Bangladesh. Halti Beel in Natore District Maguri Motapung Beel in Tinsukia district of Assam

A beel (Bengali and Assamese: বিল) is a billabong or a lake-like wetland with static water as opposed to moving water in rivers and canals - typically called khāls in Bengali, in the Ganges - Brahmaputra flood plains of Bangladesh, and the India n states of West Bengal and Assam. The term owes its origins to the word of the same pronunciation meaning "pond" and "lake" in the Bengali and Assamese languages.

## Contents

* 1 Formation
* 2 Haor, Baor
* 3 Location of important beels
* 3.1 Bangladesh
* 3.2 Assam
* 4 References

## Formation

Typically, beels are formed by inundation of low-lying lands during flooding, where some water gets trapped even after flood waters recede back from the flood plains. Beels may also be caused by filling up of low-lying areas during rains, especially during the monsoon season.

There are different causes for the formation of beels. A string of beels is indicative of there being the remains of a great river that deserted its channel, moving to a new one elsewhere.[1]

## Haor, Baor

In north eastern Bangladesh there are large water bodies called haors. A haor is a bowl shaped depression which is flooded every year during monsoon. Throughout the rainy season a haor is such a vast stretch of turbulent water that it is thought of as a sea, within which the villages appear as islands. It remains under water for seven months of the year. During the dry season water drains out leaving small shallow lakes exposing rich soil extensively cultivated for rice.[2][3] In greater Comilla, Faridpur, Dhaka and Pabna districts the beel is sometimes referred to as baor.[1]

## Location of important beels

### Bangladesh

Bangladesh has thousands of beels, with the best-known being Chalan Beel, Gopalganj-Khulna Beel, Meda Beel, Aila beel, Dekhar beel, Kuri beel, Erali beel and Arial Beel.[4] In the central part Bangladesh, important beels are Katla, Chatal, Nagarkanda, and Chanda. Most of the large beels have shrunk a great deal in recent decades. Regionwise, in the northwest of Bangladesh some of the larger beels are Bara Beel in Pirganj, Tagrai Beel in Kurigram, Lunipukur in Rangpur, Bara Mirzapur Beel in Narail and Keshpathar in Bogra. The old river course of Atrai has beels. In the southern region of Bangladesh, important beels are Boyra, Dakatia, Bara, Kola, Patla, Chatal and Srirampur.[1]

### Assam

In Assam, Deepor Beel is a permanent, freshwater lake, in a former channel of the Brahmaputra river, to the south of the main river south-west of Guwahati. It has great biological and environmental importance besides being the only major storm water storage basin for the Guwahati city. The beel is endowed with rich floral and faunal diversity. In addition to huge congregation of residential water birds, the Deepor ecosystem harbours large number of migratory waterfowl each year. Deepor Beel has been designated as a Ramsar site in November 2002.[5]

## References

1. ↑ 1.0 1.1 1.2 Mohd Shamsul Alam, and Md Sazzad Hossain (2012), "Beel", Banglapedia (Second ed.), Asiatic Society of Bangladesh, http://en.banglapedia.org/index.php?title=Beel, retrieved July 28, 2015
2. ↑ G. M. Akram Hossain, and Ainun Nishat. "Environmental Considerations for Water Resources Development in Haor Areas of Northeastern Bangladesh". American Society of Civil Engineers. http://cedb.asce.org/cgi/WWWdisplay.cgi?9601961.
3. ↑ Mohd Shamsul Alam, and Md Sazzad Hossain (2012), "Haor", Banglapedia (Second ed.), Asiatic Society of Bangladesh, http://en.banglapedia.org/index.php?title=Haor, retrieved July 28, 2015
4. ↑ Abdul Wahab Akonda, BANGLADESH , International Water Management Institute; Retrieved: 2007-12-04
5. ↑ "Deepor Beel". FreshWater & Wetlands. WWF. http://www.wwfindia.org/about_wwf/what_we_do/freshwater_wetlands/our_work/ramsar_sites/deepor_beel_.cfm.

* Birding opportunities at Deepor Beel

* v
* t
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Ponds, Pools, and Puddles

Ponds|

* Ash pond
* Balancing lake
* Ballast pond
* Beel
* Cooling pond
* Detention pond
* Dew pond
* Evaporation pond
* Facultative lagoon
* Garden pond
* Ice pond
* Immersion pond
* Infiltration basin
* Kettle pond
* Log pond
* Melt pond
* Mill pond
* Polishing pond
* Raceway pond
* Retention pond
* Sag pond
* Salt evaporation pond
* Sediment pond
* Settling pond
* Solar pond
* Stepwell
* Stew pond
* Tailings
* Tarn
* Waste pond
* Waste stabilization pond

Pools|

* Anchialine pool
* Brine pool
* Infinity pool
* Natural pool
* Plunge pool
* Reflecting pool
* Spent fuel pool
* Stream pool
* Swimming pool
* Tide pool
* Vernal pool

Puddles|

* Bird bath
* Coffee ring effect
* Puddle
* Puddles on a surface
* Seep puddle

Biota|

* Beaver dam
* Duck pond
* Fish pond
* Goldfish pond
* Koi pond

Ecosystems|

* Aquatic ecosystem
* Freshwater ecosystem
* Lake ecosystem

Related|

* Aerated lagoon
* Bakki shower
* Big fish–little pond
* Body of water
* Constructed wetland
* Full pond
* Hydric soil
* Phytotelma
* Pond of Abundance
* Pond liner
* Ponding
* Puddle (M C Escher)
* Spring
* Swimming hole
* Water aeration
* Water garden
* Water Lilies (Monet)
* Well

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