Experimental investigation on wave decay through vegetation patch with the quantitative generalized model of root, stem and leaf

Zeng Siyi; Chen Jie; Jiang Changbo; He Fei; Long Yuannan; Qu Ke; Deng Bin; Wu Zhiyuan

doi:10.12171/j.1000-1522.20180110

Journal of Beijing Forestry University > 2020 > 42(10): 117-125. > DOI: 10.12171/j.1000-1522.20180110

Zeng Siyi, Chen Jie, Jiang Changbo, He Fei, Long Yuannan, Qu Ke, Deng Bin, Wu Zhiyuan. Experimental investigation on wave decay through vegetation patch with the quantitative generalized model of root, stem and leaf[J]. Journal of Beijing Forestry University, 2020, 42(10): 117-125. DOI: 10.12171/j.1000-1522.20180110

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Experimental investigation on wave decay through vegetation patch with the quantitative generalized model of root, stem and leaf

Zeng Siyi^1,,
Chen Jie^{1, 2, 3, ,},
Jiang Changbo^{1, 2, 3},
He Fei¹,
Long Yuannan^{1, 2, 3},
Qu Ke^{1, 2, 3},
Deng Bin^{1, 2, 3},
Wu Zhiyuan^{1, 3}

1.
School of Hydraulic Engineering, Changsha University of Science & Technology, Changsha 410114, Hunan, China
2.
Key Laboratory of Water Sediment Sciences and Water Disaster Prevention ofHunan Province, Changsha 410114, Hunan, China
3.
Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province, Changsha 410114, Hunan, China

More Information

Received Date: April 21, 2018
Revised Date: January 16, 2019
Available Online: August 10, 2020
Published Date: October 24, 2020

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Abstract

Abstract

Objective Mangrove forest has become a research focus due to its functions as a newly ecological protector of shorelines. In order to quantify research the root, stem and leaf of mangrove forest, this study aims to experimentally investigate wave height decay along the quantitative generalized vegetation patch with root, stem and leaf.
Method The wave height calculated by the formula of Kobayashi was compared with experimental data.
Result The results showed that wave damping factors ranged from 0.02 to 0.47. The wave attenuation was lowest as the wave length of incident waves was equal to the length of the vegetation patch. And the boundary effect and wave height increment were observed as wave propagating over the vegetation patch. The relative wave height increment varied from 0 to 13%. When the submergence ratio ranged between 1.0 and 1.2, lower arrangement densities of leaves and roots resulted in higher and lower wave height increment, respectively. Additionally, the relative wave height increment was decreasing with a decreasing arrangement density of roots or leaves when submergence ratio equaled to 0.8.
Conclusion The variation of wave height along the vegetation patch appears to depending on arrangement density, submergence ratio and wave length to the length of vegetation patch.
- wave height decay,
- root,
- leaf,
- distribution density,
- submergence rate,
- quantitative generalized plant model

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References

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