climate change and riverbank erosion: a case study of the jamuna river, bangladesh
Post on 06-Apr-2015
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Climate Change: River Morphology and Local Indigenous Adaptation Technique in
Jamuna River
Mahmud Hasan Tuhin1, Rahman Mohammad Arifur1, Md. Mosiur Rhaman1, Rahman Md. Munsur 2
1 Student and 2 Professor
Institute of Water and Flood Management, Bangladesh University of Engineering and Technology, Dhaka- 1000, Bangladesh
Home stead Destruction Agricultural landDestruction
Relocation and Migration
Bank material erosionErosion at the
door step
Very high or low rainfall Sea level rise Changes in river sediment transport and flood regimes Disturbance in requiring long periods of adjustment in fluvial processes and morphological forms Rapid morphological change in river for the exceptional change in water level caused by sudden rain fall Change in soil moisture due to shifting rainfall Change in seasonality
Change in River Morphology
Rapid change in river morphology cause massive riverbank erosion at the up stream of the Bangabandhu Bridge (Courtesy: CEGIS)
Indigenous Adaptation Techniques
Bamboo pilling (85%)
Sand bag filling (80%)*
Temporary house (60%)
Bandaling (10%)*
Abstract ID: ISCC 11139
Migration in different location (90%)*Moved toward char land (20%) Natural vegetation cover for erosion protection (30%)Moveable assets such as cattle instead for permanent asset like pacca house (65%)
* Percentage (%) on the basis of local people’s perception for adaptation to riverbank erosion
All the photographs and data were collected during field survey in 2010
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