The intertidal
mangrove ecosystem of Indian Sundarban is now as a critical ecosystem due to
climate changeinduced sea level rise. The present study analyses the responses,
migration, destruction and vulnerability of
the four deltaic mangrove ecosystem, such as
Jambudwip, Bulcherry, Dalhousie and Bangaduni Islands along the ocean sides.
The changes in
this deltaic ecosystem studied by using GIS and remote sensing with collecting
data about sea level of nearest tidal gauge station Haldia (2.59 ± 1.0 mm/year)
and Diamond Harbor (4.67 ± 0.68 mm/year).
The study finds
that if the sea level rises about mangrove surface, the mangrove retreats
landward and also decline the land areas, increases soil erosion that affected
in the southern and south-western part where these vulnerable mangrove islands
are located.
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