The effect of lateral bank erosion on the mangrove channel of Langkawi Island, Malaysia
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Abstract. Hashim SS, Abd Aziz KN, Tajam J, Mohd FA, Roslani MA, Kamaruddin SA, Latif ZA, Maulud KNA, Ahmad A, Azahary WAHWM. 2025. The effect of lateral bank erosion on the mangrove channel of Langkawi Island, Malaysia. Asian J For 9: 97-107. Mangrove forests, essential marine ecosystems that support marine life and economic activities, face threats from natural factors like monsoon seasons and artificial threats of human interventions. The extent of mangroves in channels depends on the hydrological properties of lateral erosion, necessitating a thorough assessment for conservation. This study utilizes erosion pins to observe lateral bank erosion in two different scenes of mangrove channels within Langkawi Island; the pristine (Selat Tuba) and the eventful channel (Sg. Kilim). Findings reveal varying erosion rates (0.03-0.62 m/year) in Sg. Kilim due to monsoon seasons and human activity influences, while Selat Tuba remains stable throughout the monsoon seasons with a ratio of 2.7:1. The study categorizes eroded banks into four distinct types based on erosion patterns across the upper, middle, and lower sections. The spatial differences in erosion types that influence the bank's conditions emphasize the need for tailored conservation approaches. Statistical analyses highlight significant variations in lateral erosion rates in Sg. Kilim underscores the impact of uncontrolled tourism activities. Sustainable management efforts should be prioritized to mitigate lateral erosion, especially in Selat Tuba, where human activities may exacerbate the issue in the future. This research provides valuable insights for coastal resource management, emphasizing the crucial role of maintaining mangrove channel bank stability.
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Arnold E, and Toran L. 2018. Effects of bank vegetation and incision on erosion rates in an urban stream. Water, 10(4), 482. DOI: 10.3390/w10040482.
Ayob N, Mustapha MA, Senawi J, Ahmad N. 2020. Herpetofauna roadkills on Langkawi Island, Peninsular Malaysia: The influence of landscape and season on mortality distribution. Sains Malaysiana 49(10): 2373-2382, DOI: 10.17576/jsm-2020-4910-04.
Azizan MH, Azmi A, Ramli RA, Zulkafli MS. 2018. Civic Engagement Education: A Case Study of Millennials in Langkawi Island and Tuba. Journal of Fundamental and Applied Sciences, 10(6S), 1813-1821. DOI: 10.4314/jfas.v10i6s.145.
Besset M, Gratiot N, Anthony EJ, Bouchette F, Goichot M, Marchesiello P. 2019. Mangroves and shoreline erosion in the Mekong River delta, Viet Nam. Estuarine, Coastal and Shelf Science, 226, 106263. DOI: 10.1016/j.ecss.2019.106263.
Brunier G, Anthony EJ, Gratiot N, Gardel A. 2019. Exceptional rates and mechanisms of muddy shoreline retreat following mangrove removal. Earth Surface Processes and Landforms, 44(8), 1559-1571. DOI: 10.1002/esp.4593.
Di Nitto D, Neukermans G, Koedam N, Defever H, Pattyn F, Kairo JG, Dahdouh-Guebas F. 2014. Mangroves facing climate change: landward migration potential in response to projected scenarios of sea level rise. Biogeosciences, 11(3), 857-871. DOI: 10.5194/bg-11-857-2014
Din AHM, Hamid AIA, Yazid NM, Tugi A, Khalid NF, Omar KM, Ahmad AJJT. 2017. Malaysian sea water level pattern derived from 19 years of tidal data. Jurnal Teknolgi 79(5). DOI: 10.11113/jt.v79.9908.
Duró G, Crosato A, Kleinhans MG, Uijttewaal WS. 2018. Bank erosion processes measured with UAV-SfM along complex bank lines of a straight mid-sized river reach. Earth Surface Dynamics, 6(4), 933-953. DOI: 10.5194/esurf-6-933-2018.
Engel FL and Rhoads BL. 2017. Velocity profiles and the structure of turbulence at the outer bank of a compound meander bend. Geomorphology, 295, 191-201. DOI: 10.1016/j.geomorph.2017.06.018
Hasegawa K. 1981. Bank-erosion discharge based on a non-equilibrium theory. In Proceedings of the Japan Society of Civil Engineers (Vol. 1981, No. 316, pp. 37-50). Japan Society of Civil Engineers. DOI: 10.2208/jscej1969.1981.316_37.
Hooke JM. 2013. River meandering. In: Shroder, J. (Editor in Chief), Wohl, E. (Ed.), Treatise on Geomorphology. Academic Press, San Diego, CA, Vol.9, Fluvial Geomorphology, pp.260–288. DOI: 10.1016/B978-0-12-374739-6.00241-4.
Ibrahim PH, Ismail WM, Mansor, M. 2019. Local residents and tourists’ opinion on the effects of boating activity towards Kilim waterways. Alam Cipta, 12, 47-55.
Imanshoar FMRM, Tabatabai MRM, Hassanzadeh Y, Rostamipoor, M. 2012. Experimental study of subsurface erosion in riverbanks. World Academy of Science Engineering and Technology, Vol.6, No.1, 27-31.
Ismail WNW, Ahmad WJW, Salam MR, Latiff A. 2018. Structural and floristic pattern in a disturbed mangrove tropical swamp forest: a case study from the Langkawi UNESCO Global Geopark Forest, Peninsular Malaysia. Sains Malaysiana, 47(5), 861-869. DOI: 10.17576/jsm-2018-4705-01.
Kazemi A, Castillo L, Curet OM. 2021. Mangrove roots model suggest an optimal porosity to prevent erosion. Scientific reports, 11(1), 9969. DOI: 10.1038/s41598-021-88119-5.
Kibler KM, Pilato C, Walters LJ, Donnelly M, Taye J. 2022. Hydrodynamic Limitations to Mangrove Seedling Retention in Subtropical Estuaries. Sustainability, 14(14), 8605. DOI: 10.3390/su14148605.
Langkawi Development Authority (LADA). 2023. Langkawi UNESCO Global Geopark. Retrieved from https://www.lada.gov.my/statistik/
Li, Z., Yang, H., Xia, J., Zhou, M., Deng, S., and Wang, Y. 2021. Channel morphologic processes of a highly sinuous bend approaching neck cutoff by bank erosion in the middle Yangtze River. International Journal of Sediment Research, 36(4), 457-467. DOI: 10.1016/j.ijsrc.2021.01.001.
McLachlan RL, Ogston AS, Asp NE, Fricke AT, Nittrouer CA, Gomes VJC. 2020. Impacts of tidal-channel connectivity on transport asymmetry and sediment exchange with mangrove forests. Estuarine, Coastal and Shelf Science, 233, 106524. DOI: 10.1016/j.ecss.2019.106524.
Mohamad N, Khanan MFA, Musliman IA, Kadir WHW, Ahmad A, Rahman MZA, Zain RM. 2018. Spatio-temporal analysis of river morphological changes and erosion detection using very high-resolution satellite image. In IOP Conference Series: Earth and Environmental Science (Vol. 169, No. 1, p. 012020). IOP Publishing. DOI: 10.1088/1755-1315/169/1/012020.
Mokhtar M, Tajam J, Wagiman S. 2019. Determination of the sediment contamination level in dangli waters of Langkawi UNESCO Global Geopark, Kedah, Malaysia. Sains Malaysiana, 48, 45-59. DOI: 10.17576/jsm-2019-4801-06.
Myers DT, Rediske RR, McNair JN. 2019. Measuring streambank erosion: A comparison of erosion pins, total station, and terrestrial laser scanner. Water, 11(9), 1846. DOI: 10.3390/w11091846.
Nizam NA, Najib CM, Yusof NM, Naser NM and Hatta SM. 2022. Preliminary Study on the Distribution and Diversity of Diptera at Tuba Island Reserve Forest, Langkawi Malaysia. In IOP Conference Series: Earth and Environmental Science 1019(1). DOI: 10.1088/1755-1315/1019/1/012012.
Novak PA, Fairfield CA, Miloshis M, Knight ZC, Lindsay R, King AJ. 2021. Bank erosion in a macrotidal tropical river: Exploring the relative impact of boat wash on riverbank erosion. River Research and Applications, 37(1), 3-16. DOI: 0.1002/rra.3736.
Suhaimi HM, Jamal MH, Ahmad A. 2018. Assessment of riverbank erosion at Kilim River, Langkawi using geospatial technique. In IOP conference series: earth and environmental science (Vol. 169, No. 1, p. 012012). IOP Publishing. DOI: 10.1088/1755-1315/169/1/012012.
Spalding M, and Parrett CL. 2019. Global patterns in mangrove recreation and tourism. Marine Policy, 110, 103540. DOI: 10.1016/j.marpol.2019.103540.
Vinh BT, and Truong NH. 2014. Erosion Mechanism of Nga Bay Riverbanks, Ho Chi Minh City, Vietnam. ASEAN Engineering Journal, 3(2), 132-141. DOI: https://doi.org/10.11113/aej.v3.15530