Abstract

Ganga-Brahmaputra delta is the largest delta of the world. Sagar island is a miniature form of it. But now a day it faces severe erosion both by natural and anthropogenic causes. We know that the Delta is an inherent part of coastal belt. But the increasing rate of coastal erosion plays an important role in shoreline change and we can find its imprint on Bengal basin through the erosion of deltaic plains like Ghoramara, Sagar islands etc. Since 1851 Sagar Island was eroded and its impact was found on changing landuse pattern and occupational activities. Identifying the nature of coastal erosion and how the rapid accretion and erosional activities of coastal belt helps to change the balance of man-environmment interaction, is the main theme of this paper.

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