https://en.banglapedia.org/index.php?action=history&feed=atom&title=Oxbow_LakeOxbow Lake - Revision history2026-04-23T03:05:28ZRevision history for this page on the wikiMediaWiki 1.40.0https://en.banglapedia.org/index.php?title=Oxbow_Lake&diff=4633&oldid=prev0:0:0:0:0:0:0:1: Content Updated.2021-06-17T19:26:47Z<p>Content Updated.</p>
<p><b>New page</b></p><div>'''Oxbow Lake''' A crescent-shaped lake formed when a river bank forms across the neck of a well-developed meander; it is found on the [[Floodplain|floodplain]] of a river. Oxbows are caused by the loops of meanders being cut-off at times by [[Flood|flood]]s, causing the river subsequently to adopt a shorter course. Usually, oxbow lakes become plugged with [[Sediment|sediment]] where they adjoin the [[Channel|channel]] and then progressively fill in.<br />
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[[Image:OxbowLakeFloodplain.jpg|thumb|400px|Ox-bow lakes on the floodplains of Bangladesh]]<br />
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In Bangladesh, oxbow lakes are quite visible in the older floodplains. An ox-bow lake normally is still part of the floodplain of the river, to which it is connected by inlets and outlets. By screening the inlets and outlets it can be converted into a culture-based fishery.It receives its nutrients from flood waters that flow into it, bringing fertiliser runoff, animal manure and other organic matter.<br />
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Locally, the feature is also known as [[Beel|beel]], [[Baor|baor]], and [[Jheel|jheel]]. These abandoned channels are rich in organic matters, because of profuse aquatic vegetation growth in [[Clay|clay]] to fine silty-clay sediments. Usually, oxbow lakes are deeply flooded during the [[Monsoon|monsoon]], either through local rainfall and [[Runoff Water|runoff water]] or by river flood. Depending upon the depth of flooding, the rims of the lakes are used for boro rice cultivation, at least in the early stage. Once the lake gets filled with [[Alluvium|alluvium]], it comes under rice cultivation. These lakes support a large variety of aquatic flora and fauna. Some of the lakes are considered to be very important freshwater fishing grounds, and are locally called jalmahal. During the monsoon season oxbow lakes act as local water [[Reservoir|reservoir]]s, and help to control the local flood level. In some areas, these lakes serve as valuable sources of irrigation during the dry [[Season|season]]. [Mohd Shamsul Alam]<br />
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''See also'' [[Jheel|jheel]]; [[Baor|baor]]; [[Beel|beel]]; [[Haor|haor]]<br />
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