New Land Formation Basic:
A Delta (Delta land) is formed from the silts (soil or rock particles) from decaying mountains. These silts are washed away and driven by the river water (often by other ways) to the mouth or end point, where it meets the ocean. The gradually compiled silts creates island shaped as a triangle (looks like the Capital Greek letter, Delta-Δ). That's why it is called the Delta land. The most significant delta in the world are: The Nile Delta, The Mississippi Delta, The Rhine Delta, The Orinoco Delta and the big Ganges Delta.
If the tidal force of the sea or the ocean is not strong, then the silts, muds, and sediments doesn't wash away. This gradually creates lot of small (Delta) islands and channels (called Distributaries) at the mouth of the river. In this way, a river can also make several of its own branches. So, the delta regions are also blessed with many small rivers. With mineral affluent silts and plenty of water (or river).
A Delta (Delta land) is formed from the silts (soil or rock particles) from decaying mountains. These silts are washed away and driven by the river water (often by other ways) to the mouth or end point, where it meets the ocean. The gradually compiled silts creates island shaped as a triangle (looks like the Capital Greek letter, Delta-Δ). That's why it is called the Delta land. The most significant delta in the world are: The Nile Delta, The Mississippi Delta, The Rhine Delta, The Orinoco Delta and the big Ganges Delta.
If the tidal force of the sea or the ocean is not strong, then the silts, muds, and sediments doesn't wash away. This gradually creates lot of small (Delta) islands and channels (called Distributaries) at the mouth of the river. In this way, a river can also make several of its own branches. So, the delta regions are also blessed with many small rivers. With mineral affluent silts and plenty of water (or river).
Land Formation in Bangladesh:
The Ganges Delta is a Riverine Delta in the South Asia region of Bengal. The Ganges Delta region is situated just above the Bay of Bengal and major portion of it is occupied by Bangladesh. The delta is over 220 miles (350 kilometers) wide along the Bay of Bengal (According to NASA). As the silts are brought in by the rivers annually by normal (river water) flow and flood, the Ganges Delta is a growing Delta. So the possibility of new land formation is very high in Bangladesh. The various experimental data also proving that the prediction of a larger Bangladesh is a practical truth. And the process is going on.
Each year about 2.4 billion tons of sediment from the Himalayas is carried by the rivers of Bangladesh to the Bay of Bengal, and deposited on the continental shelf causing accretion of land to the coast of the country. The high sediment load results in a net accretion of about 35 square kilometers of land per year to Bangladesh.
Land Formation Statistics:
The centre for Environmental and Geographic Information Service (CEGIS) statistically shows that about 100 sq. km. of land is being lost by river destruction in Bangladesh in every year. But a new 120 sq. km. is being added as a new land in the reverine districts of Bangladesh. Thus about 20 sq.km. of land is permanently being added with the total area of Bangladesh.
Another statistics shows that from the year 1750 to 1950, the land area was gradually increasing. But in last 50 years about 20 sq. km. has been added with the total area of Bangladesh.
Again, the Institute of Water Modeling has recently found that, the symptom of a new land of (700-800) sq. km. is very much noticeable in between the Hatia and Nijhum islands in the southern part of Bangladesh.
This is a great possibility for Bangladesh to overcome their population problem. This land formation should be done in a scientific way. Otherwise, it may cause submergence or destruction to the nearby lands. So, this is the time to be concerned and to take initiatives to perform the hope successfully.
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