Morphological processes and effective river erosion Management: a case study of the Arial Khan River in Bangladesh

J. Akter, Maminul Haque Sarker, Preetha Haque (Illustrator)

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionProfessional

Abstract

Every river is unique. Therefore, effective erosion management in rivers should be based on their morphological processes. The Arial Khan, a major and very dynamic river in Bangladesh, creates huge bank erosion which is one of the main sources of the sufferings of the local people. This article proposes a cost effective and efficient method of erosion management based on the morphological process of the Arial Khan River. Satellite images, old maps and hydro-morphological data have been used to understand the morphology and planform of the river. Erosion in this river does not continue at a particular location or for more than 5 years. A quicker and cheaper option for bank protection would be suited for local scale erosion management. On the other hand, planform analysis of the Arial Khan River shows that the meandering length and amplitude are four and one kilometers respectively. In addition, as the river in an active delta, it should also be allowed the flexibility for land formation and development. For long term erosion management, fixing the nodal sections might be more efficient and cost-effective as well as environmental friendly than a rigid and costly solution.
Original languageEnglish
Title of host publicationInternational Conference on Water and Flood Management- 2013
Pages263-274
Number of pages12
Publication statusPublished - 2013
Externally publishedYes
EventInternational Conference on Water and Flood Management - Dhaka, Bangladesh
Duration: 9 Mar 201311 Mar 2013

Conference

ConferenceInternational Conference on Water and Flood Management
Abbreviated titleICWFM-2013
CountryBangladesh
CityDhaka
Period9/03/1311/03/13

Keywords

  • Meandering bend development
  • riverbank erosion
  • morphological process
  • nodal section
  • erosion management

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