Journal of Marine Science and Technology

Journal of Marine Science and Technology

Impact of coastal forest cover on the stabilization, protection and restoration of sandy coasts exposed to tsunami waves

Document Type : Original Manuscript

Authors
Hamed Jalil Masir
Rohollah Fattahi
Elham Ghanbari Adivi
Department of Water Science Engineering, Faculty of Agriculture, Shahrekord University, Shahrekord, Iran.
10.22113/jmst.2020.212864.2338
Abstract
Sediment transport phenomenon is considered as one of the important and Effective factors in hydraulic performance and morphological structure of the coasts. In addition, stable development, engineering proceedings and the selection of the most appropriate protection method for organization and stabilization of the coast, are depends on the quantity of sediment load. Therefore, the focus of this study is generally to estimate sediment transport rate, assess the impact of coastal forest cover (Green Belt) on decreasing sediment transport rate exposed to tsunami wave trend and to obtain the parametric model to each coastal area using SPSS software. Experiments were performed on the effectiveness of a mangrove tree to reduce tsunami energy, by a simulated polyethylene synthetic shrub structure, for two rectangular and triangular tree layouts, 3 input wave height of 6, 9 and 12 cm, constant and horizontal slope of the coast, 0.35 mm sediment diameter and in terms of presence and absence of cover.. The results of this study show that despite forest cover, 41.17% of coastal erosion and scour are prevented and it helps to stabilization and restoration the coasts. Also considering conditions such as triangular layout selection and increasing cover density, 7.57% and 11.20% respectively, leading to the improvement of the coastal condition. Finally, the parametric model and the experimental equation for estimating the sediment transport rate with the correlation coefficient equal to 0.95, proposed as well.
Keywords
Green belt
Stable Development
organization and stabilization of the coast
Sediment transfer rate
Tsunami

Subjects

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Journal of Marine Science and Technology
Volume 21, Issue 1
Winter 2022
Pages 53-63

  • Receive Date 22 December 2019
  • Revise Date 20 February 2020
  • Accept Date 24 February 2020
  • Publish Date 21 March 2022