A Laboratory Study on Wave Reduction by Mangrove Forests
A Laboratory Study on Wave Reduction by Mangrove Forests
复制标题
红树林减浪的室内研究
DOI：
10.1016/j.apcbee.2013.05.006
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发表时间：
2013
期刊：
影响因子：
--
通讯作者：
S. Catherine
中科院分区：
文献类型：
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作者：
A. M. Hashim;S. Catherine
2004年印度洋海啸给非洲和亚洲国家，特别是泰国西海岸和斯里兰卡造成了严重破坏。然而，人们注意到，与印度东南部暴露在外的村庄相比，位于红树林后面的那些村庄受到了海啸的破坏。从那时起，更多的国家开始重新种植红树林以保护海岸。人们对红树林的减浪性能进行了广泛的研究。然而，红树林植被特征的数量效应仍然知之甚少。因此，本研究旨在量化不同红树林密度对波高的降低，以及研究树木排列对波高降低的影响。采用人工红树林模型，在窄波水槽中进行了室内试验。结果表明，红树林对波高的影响是裸地的2倍左右。树木纵列和交错排列的减波率差异小于10%。还发现，80 m宽的Rhizophoraforest足以将波高降低80%。
The 2004 Indian Ocean Tsunami has caused severe damage to African and Asian countries especially western coast of Thailand and Sri Lanka. However, it was noticed that the villages situated behind mangrove forests were protected from tsunami damage compared to nearby exposed villages in southeastern India. Since then, more countries have started to replant mangroves for coastal protection. Extensive researches have been carried out to study the performance of mangrove forests in wave reduction. However, the quantitative effects of mangrove vegetation characteristics are still poorly understood. Hence, this study aimed to quantify the wave height reduction with various mangrove densities as well as to study the influence of tree arrangements on wave reduction. The laboratory experiments were conducted in a narrow wave flume using artificial mangrove models. The results showed that the wave height reduction in area with mangroves was about two times larger compared to that in bare land. The wave reduction difference between tandem and staggered arrangements of trees was less than 10%. It is also found that the 80 m wideRhizophoraforest is sufficient to reduce wave height by 80%.