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Article

Evaluation of Pandanus Trees as a Means of Eco-DRR against Storm Surge Wave on Saint Martin’s Island, Bangladesh

1
Graduate School of Science and Technology, Department of Civil and Environmental Engineering, Kumamoto University, Kumamoto 860-0862, Japan
2
Faculty of Environmental and Symbiotic Sciences, Kumamoto Prefectural University, Kuamoto 862-8570, Japan
3
Faculty of Advanced Science and Technology, Department of Civil and Environmental Engineering, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto 860-8555, Japan
*
Author to whom correspondence should be addressed.
Academic Editors: Joaquin Melgarejo and Patricia Fernández-Aracil
Water 2022, 14(11), 1781; https://doi.org/10.3390/w14111781
Received: 11 April 2022 / Revised: 23 May 2022 / Accepted: 25 May 2022 / Published: 1 June 2022
(This article belongs to the Special Issue Water Resources Management and Extreme Events)
Saint Martin’s Island is a tiny island located in Bangladesh that is rich in biodiversity but threatened by many natural disasters, and it is often neglected due to being far from the mainland. Ecosystem-based disaster risk reduction (Eco-DRR) is the most urgently required provision for Bangladesh as it is a very easy and inexpensive way to survive natural adversities. In this study, attempts were made to quantify the capacity of an existing Pandanus forest on Saint Martin’s Island to reduce the storm surge disaster risk. For this, satellite images were processed with ErdasImagine and ArcGIS software, and land use and land cover changes were analyzed to determine the changes related to Pandanus trees over time. Storm surge wave height reduction was analyzed using the Bao regression model equation. The results show that the Pandanus tree population increased almost 3-fold from 2010 to 2021, and that the Pandanus trees can reduce the surge height, which will ultimately preserve 75% of the area of the island (2021). The minimum required patch width for the Pandanus tree belt was identified as 4.53 m. The areas highly vulnerable to flooding were also identified in this study. View Full-Text
Keywords: Eco-DRR; Pandanus; storm surge; land use; vulnerable Eco-DRR; Pandanus; storm surge; land use; vulnerable
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MDPI and ACS Style

Kayum, S.; Shimatani, Y.; Minagawa, T. Evaluation of Pandanus Trees as a Means of Eco-DRR against Storm Surge Wave on Saint Martin’s Island, Bangladesh. Water 2022, 14, 1781. https://doi.org/10.3390/w14111781

AMA Style

Kayum S, Shimatani Y, Minagawa T. Evaluation of Pandanus Trees as a Means of Eco-DRR against Storm Surge Wave on Saint Martin’s Island, Bangladesh. Water. 2022; 14(11):1781. https://doi.org/10.3390/w14111781

Chicago/Turabian Style

Kayum, Shakila, Yukihiro Shimatani, and Tomoko Minagawa. 2022. "Evaluation of Pandanus Trees as a Means of Eco-DRR against Storm Surge Wave on Saint Martin’s Island, Bangladesh" Water 14, no. 11: 1781. https://doi.org/10.3390/w14111781

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