Brahmaputra’s dramatic change of course to lands where flood was never
experienced is presently taking it under its grip due to river’s rising water, if
this scenario continues then most economical zones can be affected.
Erosion is a major threat due to which Brahmaputra has
expanded 2km to 14km in varied districts of Assam, forcing people to move out
from their habitat area. Without a land to stand it has become difficult for
the government to control the sea of challenges triggered due to flush out of
water into the mouth of Brahmaputra by multiple tributaries.
Brahmaputra solely discharges 19,830 cubic meters per
second annually. Creating complicated scenario in the areas through which it
makes passage to the Bay of Bengal. According to the Professor of IIT, Guwahati
erosion has triggered drastically from past few years due to holes made by
animals for underground shelter. Consequently this helps to create series of
small water channels due to continuous heavy downpour by the bank side soil. In
the process due to continuous movement of powerful current through these water
channels weakened the base, bringing powerful collapse of the top soil and
daily shrinking the size of the land.
Wind, incessant rain and water current are the present
main factors that collapsed the manmade dam of Majuli, inundating the entire
island causing colossal disaster. Usually it is very difficult to predict how
fast the soil or upper crust of the earth could erode.
Mainly sandy soil by riverside bank is susceptible to
fast erosion due to river inundation, speeding wind and growing water current.
The only way to avert such situation is by plantation of trees and careful
cultivation on soil.
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