Coastal Protection in Cu Lao Dung Mangroves (Soc Trang Province, Vietnam): Quantifying Wave Energy Dissipation

Authors

  • Le Nguyen Hoa Tien

    1. Department of Oceanology, Meteorology and Hydrology, Faculty of Physics and Engineering Physics, University of Science, Ho Chi Minh 700000, Vietnam; 2. Viet Nam National University, Ho Chi Minh 700000, Vietnam

  • Tran Xuan Dung

    1. Department of Oceanology, Meteorology and Hydrology, Faculty of Physics and Engineering Physics, University of Science, Ho Chi Minh 700000, Vietnam; 2. Viet Nam National University, Ho Chi Minh 700000, Vietnam

  • Vo Luong Hong Phuoc

    1. Department of Oceanology, Meteorology and Hydrology, Faculty of Physics and Engineering Physics, University of Science, Ho Chi Minh 700000, Vietnam; 2. Viet Nam National University, Ho Chi Minh 700000, Vietnam

DOI:

https://doi.org/10.30564/jees.v7i1.7399
Received: 1 October 2024 | Revised: 20 October 2024 | Accepted: 24 October 2024 | Published Online: 9 January 2025

Abstract

Mangrove forest is always considered an effective barrier to protect habitats from high waves, especially tsunami. Therefore, the estimation of wave energy dissipation is required for disater warning. The aim of this study is to calculate wave attenuation in mangrove areas by combining field survey method and mathematical modeling method. The application area is Cu Lao Dung mangrove forest, Soc Trang, Vietnam. From data measurements of hydrodynamics and mangrove characteristics, the wave attenuation coefficient r, the drag coefficient Cd were determined in mud area, mud-mangrove area and mangrove area. In addition, using WAPROMAN model, the attenuation of wave height is simulated in different cases such as without mangrove, with mangrove, breaking wave effect and wave trunk interaction effect. Both the results from the measured method and the model method show the role of mangroves in reducing wave energy. The results from modeling are smaller than the calculated results. However, both methods tend to be suitable. Such difference required more considerations not only on calculation formulas but also on modeling adjustment. The research clearly demonstrated the effectiveness of mangroves in coastal protection, with wave-trunk interaction becoming the dominant factor in energy dissipation deeper into the forest. For future, extending the study to different mangrove forests and longer time scales could provide a more comprehensive understanding of the role of mangroves in coastal protection across various geographical and temporal contexts.

Keywords:

Mangroves; Wave Energy Dissipation; Waproman Model; Cu Lao Dung (Soc Trang, Vietnam)

References

[1] Choudhary, B., Dhar, V., Pawase, A.S., 2024. Blue Carbon and the Role of Mangroves in Carbon Sequestration: Its Mechanisms, Estimation, Human Impacts and onservation Strategies for Economic Incentives. Journal of Sea Research. 199, 102504.

[2] Asari, N., Suratman, M.N., Mohd Ayob, N.A., et al., 2021. Mangrove as A Natural Barrier to Environmental Risks and Coastal Protection. In: Rastogi, R.P., Phulwaria, M., Gupta, D.K. (eds.). Mangroves: Ecology, Biodiversity and Management. Springer: Singapore. pp. 305–322.

[3] Cunningham, E., 2019. The Role of Mangrove in Coastal Protection. Wood Environment and Infrastructure Solutions UK Limited. 11p.

[4] Nguyen, T.A., Nguyen, T.P.T., 2013. Research on Wave Attenuation in Mangrove Forest. Journal of Water Resources and Environmental Engineering. Special Issue (11/2013), 163–172.

[5] Mazda, Y., Magi, M., Ikeda, Y., et al., 2006. Wave Reduction in A Mangrove Forest Dominated by Sonneratia sp. Wetlands Ecology and Management. 14, 365–378.

[6] Mazda, Y., Magi, M., Kogo, M., et al., 1997. Mangroves as A Coastal Protection from Waves in the Tong King Delta, Vietnam. Mangroves Salt Marshes. 1, 127–135.

[7] Zhou, X., Dai, Z., Pang, W., et al., 2022. Wave Attenuation over Mangroves in the Nanliu Delta, China. Frontier in Marine Science. 9, 874818.

[8] Horstman, E.M., Dohmen-Janssen, C.M., Narra, P.M.F., et al., 2014. Wave Attenuation in Mangroves: A Quantitative Approach to Field Observations. Coastal Engineering. 94, 47–62.

[9] Vu, D.T., 2011. The Role of Mangroves for Reducing High Waves During Typhoon in Dai Hop (Kien Thuy, Hai Phong). Vietnam Journal of Marine Science and Technology. 11(1), 43–55.

[10] Cao, H., Chen, Y., Tian, Y., et al., 2016. Field Investigation into Wave Attenuation in the Mangrove Environment of the South China Sea Coast. Journal of Coastal Research. 32(6), 1417–1427.

[11] Tran, Q.B., 2011. Effect of Mangrove Forest Structures on Wave Attenuation in Coastal Vietnam. Oceanologia. 53(3), 807–818.

[12] Le Nguyen, H.T., Tran, X.D., Lam, V.H., et al., 2021. Analysis of Wave Spectrum by Blackman-Tukey Method and Fast Fourier Method. Vietnam Journal of Marine Science and Technology. 21(1), 13–22.

[13] Massel, S.R., Furukawa, K., Brinkman, R.M., 1999. Surface Wave Propagation in Mangrove Forests. Fluid Dynamics Research. 24 (4), 219–249.

[14] Vo Luong, H.P., Massel, S.R., 2008. Energy Dissipation in Non-uniform Mangrove Forest of Arbitrary Depth. Journal of Marine Systems. 74, 603–622.

[15] Suzuki, T., Zijlema, M., Burger, et al., 2011. Wave Dissipation by Vegetation with Layer Schematization in SWAN. Coastal Engineering. 59, 64–71.

[16] Vuik, V., Jonkman, S.N., Borsje, B.W., et al., 2016. Nature-based Flood protection: the Efficiency of Vegetated Foreshores for Reducing Wave Loads on Coastal Dikes. Coastal Engineering. 116, 42–56.

[17] Samiksha, S.V., Vethamony, P., Erick Rogers, et al., 2017. Wave Energy Dissipation due to Mudbanks Formed off Southwest Coast of India. Estuarine, Coastal and Shelf Science. 196, 387–398.

[18] Vu, D.V., 2015. Applying Numerical Model to Assess Role of Mangroveforest in Wave Attenuation in Hai Phong Coastal Area. Vietnam Journal of Marine Science and Technology. 15(1), 67–76.

[19] Maza M., Lara, J.L., Losada, I.J., 2019. Experimental Analysis of Wave Attenuation and Drag Forces in A Realistic Fringe Rhizophora Mangrove Forest. Advances in Water Resources. 131, 103376.

[20] Wang, Y., Yin, Z., Liu, Y., 2022. Experimental Investigation of Wave Attenuation and Bulk Drag Coefficient in Mangrove Forest with Complex Root Morphology. Applied Ocean Research. 118, 102974.

[21] Zhang, R., Chen, Y., Lei, J., et al., 2023. Experimental Investigation of Wave Attenuation by Mangrove Forests with Submerged Canopies. Coastal Engineering. 186, 104403.

[22] Zhang, X., Lin, P., Nepf, H., 2022. A Wave Damping Model for Flexible Marsh Plants with Leaves Considering Linear to Weakly Nonlinear Wave Conditions. Coastal Engineering. 175, 104124.

[23] Vo Luong, H.P., Massel, R., 2006. Experiment on Wave Motion and Suspended Sediment Concentration at Nang Hai, Can Gio Mangrove Forest, Southern Viet Nam. Oceanologia. 48, 23–40.

[24] Vo Luong, H.P., Le Nguyen, H.T., 2024. Calculating the Wave Propagation in Cu Lao Dung Mangrove Forest (Soc Trang) using WAPROMAN Model. IEEJ Transactions on Sensors and Micromachines. 144 (10), 328–331. DOI: https://doi.org/10.1541/ieejsmas.144

[25] Massel, S.R., 2013. Ocean Surface Waves: Their Physics and Prediction. World Scientific Publishing: Singapore. 667p.

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How to Cite

Le Nguyen Hoa Tien, Tran Xuan Dung, & Vo Luong Hong Phuoc. (2025). Coastal Protection in Cu Lao Dung Mangroves (Soc Trang Province, Vietnam): Quantifying Wave Energy Dissipation. Journal of Environmental & Earth Sciences, 7(1), 514–526. https://doi.org/10.30564/jees.v7i1.7399

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