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Erosion and Mitigation Measures in the Teesta River Bank of Bangladesh

By: Mst. Jebunnesa Islam, Md. Ismail Firoz, Md. Zahurul Islam, Md. Moniruzzaman, Md. Latifur Rahman Sarker

Key Words: Riverbank erosion, Mitigation, Respondents, Institutions, Teesta River Bangladesh

IES-Vol10-No3-p42-62, December 2023.

Abstract

This paper aims to explore the erosion conditions and mitigation practices of riverine people at various levels (individuals, communities, NGOs, and GOs)of the River Teesta. To investigate the results, this study is conducted using satellite data as well as primary observation. Selected satellite imageries are used from the year of 1989, 1999, 2010 and 2022. Modified Normalized Difference Vegetation Index (MNDWI) is performed through Geographical Information System (GIS) and Remote sensing technique (RS) to identify the banklines that are used for erosion analysis. Random sampling procedure is applied to define the sample size whereas 426 households out of 955 are selected from three unions named Bojra (Site 1), Thetrai and Daldalia (Site 2) to collect primary data through questionnaire survey. Primary data are analyzedthe descriptive and inferential statistics using SPSS. Bojra, Thetrai and Daldalia experienced noticeable erosion followed by ​​86.63 ha and 81.91 ha over the period of 2010-2022 respectively. Despite, only traditional erosion control measures such as bamboo piling/Bundal were adopted at individual and community levels to combat riverbank erosion. On the other hand, the government has taken both inadequate traditional measures such as Geobags, bamboo piling along with infrastructural measures especially Boulders dumping, Cross/I-badh to mitigate riverbank erosion.However, the findings of the present study are expected to provide effective guidelines to the concerned policy makers to ensure sustainable river management in the northern region of Bangladesh.

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Mst. Jebunnesa Islam, Md. Ismail Firoz, Md. Zahurul Islam, Md. Moniruzzaman, Md. Latifur Rahman Sarker

Erosion and Mitigation Measures in the Teesta River Bank of Bangladesh

IES-Vol10-No3-p42-62, December 2023.

https://jenvosci.com/ies-publish/erosion-and-mitigation-measures-in-the-teesta-river-bank-of-bangladesh/

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