| Coastal vegetation belts have actual benefits environmentally and economically as well.For tsunami prone areas,these benefits well be extended if vegetation belts are designed according to tsunami disaster mitigation conditions.In order to facilitate coastal vegetation belt design that fulfills the conditons of tsunami disaster reduction,guidelines are necessary. This report intends to give general guidelines on the planning and design of coastal vegetation belts for tsunami disaster mitigation according to presently available knowledge.The contents include description of the general roles and limitations of coastal vegetations in tsunami disaster mitigation,description of basic steps in planning and design,data requirement and collection,design parameters and calculation procedure,and example of calculation processes as well.Notes on the requirement of combination with other structures and the importance of good governance for the sustainability of tsunami mitigative coastal vegetaion belt are also described. However,the fact that research results on this theme are limited and the aveilable graphs and diagrams were dependent a lot on empirical data,many additional field data,especially related to vegetation characteristics are much required to enhance the applicability of this Guideline. |
