Please use this identifier to cite or link to this item: http://hdl.handle.net/10739/5340
Title: Dynamics of salinity intrusion in the surface and ground water of Sundarban Biosphere Reserve, India
Authors: Chowdhury, Abhiroop
Naz, Aliya
Bhattacharyya, Santanu
Sanyal, Pranabes
Keywords: Biodiversity
Climate change
Delta
Ground water
Mangrove
Salinity
Salinity intrusion
Sea level Rise
Sundarbans
Surface water
Ramsar
Wetland
Issue Date: 10-Dec-2021
Publisher: IOP Conference Series: Earth and Environmental Science, IOP Publishing, United Kingdom
Citation: Chowdhury, A., Naz, A., Bhattacharyya, S., Sanyal, P. (2021) Dynamics of salinity intrusion in the surface and ground water of Sundarban Biosphere Reserve, India. IOP Conference Series: Earth and Environmental Science. 944, 012061.
Abstract: Sundarban is the world’s largest transboundary contiguous mangrove ecosystem and home of the mangrove dwelling tigers. Sea level rise is destabilizing this ecosystem which is experiencing a rising salinity in surface and ground waters (shallow aquifer). In this study ground water salinity was investigated across Sundarbans and surface water seasonal salinity changes has been investigated along East-west gradient in the region. Statistically significant seasonal as well as spatial variations has been observed in the surface water salinity pattern across this gradient. The post monsoon average surface water salinity was 10.58 ppt while in pre-monsoon it was 27.31 ppt. Ground water salinity was lowest (0.95 ppt) in monsoon while highest in the pre-monsoon season (7.4 ppt). There was a clear east-west gradient in the surface salinity distribution across the delta, indicating a source of fresh water in the eastern corner, bordering Bangladesh. Increasing salinity indicate impact on mangrove diversity with salinity sensitive species (Heritiera fomes, Nypa fruticans) limited to the eastern corner while salinity resilient species (Avicennia marina and Phoenix paludosa) were dominating the western and central part of the Indian Sundarbans. Mangrove associate Acanthus ilicifolius and Heliotropium currasavicum were abundant in the forests under anthropogenic disturbances.
URI: https://iopscience.iop.org/article/10.1088/1755-1315/944/1/012061
https://doi.org/10.1088/1755-1315/944/1/012061
http://hdl.handle.net/10739/5340
ISSN: 17551315
Appears in Collections:JGU Research Publications

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