Application of a ‘bio-engineering’ technique to protect ghoramara island (Bay of Bengal) from severe erosion

被引:3
|
作者
Tuhin Ghosh
Gupinath Bhandari
Sugata Hazra
机构
[1] UGC Academic Staff College,School of Oceanographic Studies
[2] Jadavpur University,undefined
关键词
Bay of Bengal; Coastal accretion; Coastal erosion; Geotextile; GIS; Mangrove; Remote sensing; Shore protection; Time series analysis;
D O I
10.1652/1400-0350(2003)009[0171:AOABTT]2.0.CO;2
中图分类号
学科分类号
摘要
Ghoramara Island is located ca. 150 km south of Kolkata, Bay of Bengal, India, in the Sundarban Delta complex. This sparsely populated island is suffering from severe coastal erosion and areal reduction for the last three decades, which results in the loss of major areas on the northwest coast. Both numerous households and a significant area of agricultural land and coastal stretches for fish drying have been lost. This has rendered thousands of people homeless as ‘environmental refugess’. In the present paper an attempt is made to study the erosion and accretion process through time series analysis using a GIS technique. Also, a study of remedial measures to protect the island using a ‘bio-engineering’ technique is reported in this paper. It has been shown that, in the absence of protection measures, the eastern shore will merge with the Indian mainland during the next 25 years, while the western part will be completely washed off.
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页码:171 / 178
页数:7
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