Assessing Mozambique's exposure to coastal climate hazards and erosion
Assessing Mozambique's exposure to coastal climate hazards and erosion
复制标题
DOI：
10.1016/j.ijdrr.2017.04.002
复制
发表时间：
2017-08-01
影响因子：
5
通讯作者：
Santha, Rubini
中科院分区：
文献类型：
--
作者：
Cabral, Pedro;Augusto, Gabriela;Santha, Rubini
世界上越来越多的人生活在具有高度地球物理和生物物理敏感性的沿海地区。因此，有必要为沿海规划者提供工具，帮助他们设计有效的管理计划，以减轻越来越多的威胁生命和财产的沿海气候灾害造成的负面影响。我们计算了莫桑比克海岸线的暴露指数（EI），并评估了自然栖息地在减少沿海气候灾害暴露方面的重要性。我们估计，2015年，与“没有栖息地”的情况相比，受高或非常高暴露水平影响的人数增加了276%，即排除沙丘，红树林和珊瑚的保护作用。环境影响评估的结果得到了Desinventar数据库的支持，该数据库中有与地质或天气有关的事件造成的损失和损害的历史数据。这些结果还表明，哪些地区最容易受到影响，从而为设计有效的沿海计划提供了有用的信息，以提高莫桑比克对气候灾害和侵蚀的抵御能力。
An increasing number of people in the world are living in coastal areas characterized by high geophysical and biophysical sensitivity. Thus, it is necessary to provide coastal planners with tools helping them to design efficient management plans to mitigate the negative effects caused by a growing number of coastal climate hazards that threaten life and property. We calculate an Exposure Index (EI) for the coastline of Mozambique and assess the importance of the natural habitats in reducing exposure to coastal climate hazards. We estimate, for year 2015, an increase of 276% in the number of people affected by a high, or very high, level of exposure when compared to a "Without habitats" scenario, i.e. excluding the protective effects of sand dunes, mangroves, and corals. The results of the EI are supported by the Desinventar Database, which has historic data concerning loss and damage caused by events of geological or weather related origin. These results also indicate where the most exposed areas are thereby providing useful information to design effective coastal plans that increase resilience to climate hazards and erosion in Mozambique.