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首页> 外文期刊>Ocean & coastal management >Construction setback regulations and sea-level rise: Mitigating sea turtle nesting beach loss
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Construction setback regulations and sea-level rise: Mitigating sea turtle nesting beach loss

机译：施工挫折规定和海平面上升：减轻海龟筑巢海滩的损失

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Global sea-level rise of up to 0.6 m is predicted in the next 100 years. In areas where coastal structures prevent landward migration of beaches, a major impact of sea-level rise will be a loss of beach habitat, with repercussions for beach-dependent organisms such as sea turtles. Setback regulations, which prohibit construction within a set distance from the sea, have the potential to mitigate loss of beach area by providing a buffer zone which allows for the natural movement of beaches in response to perturbation. The potential impact of a rise in sea level on 11 important sea turtle nesting beaches in Barbados under a range of setback regulations was determined. Three sea-level rise scenarios were modelled under five different setback regulations (10, 30, 50, 70 and 90 m). Beach area was lost from all beaches under all sea-level rise scenarios with a 10 and 30 m setback, from some beaches with a 50 m setback and from one beach with a 70 m setback. No beach area was lost with a 90 m setback distance. Sea turtles nest within a range of beach elevations and there was an overall loss of beach habitat within the preferred nesting elevation range with both a 10 and 30 m setback under all sea-level rise scenarios. Considerable variation in the extent of beach and nesting area loss was observed. The implementation and enforcement of adequate setback regulations have the potential to maintain the ecological and economic function of beaches in the face of extensive coastal development and sea-level rise.
机译：预计未来100年全球海平面将上升至0.6 m。在沿海结构阻止海滩向陆地迁移的地区，海平面上升的主要影响将是海滩栖息地的丧失，并对依赖海滩的生物（例如海龟）产生影响。挫折法规禁止在距海一定距离内进行建设，它有可能通过提供一个缓冲区来缓解海滩面积的损失，该缓冲区允许海滩响应摄动而自然运动。确定了一系列挫折规定下海平面上升对巴巴多斯11个重要海龟筑巢海滩的潜在影响。根据五种不同的挫折规定（10、30、50、70和90 m）对三种海平面上升情景进行了建模。在所有海平面上升情况下，所有海滩的失落面积均为10和30 m，挫折的一些海滩和挫折幅度为70 m的一个海滩均失去了海滩面积。缩水距离为90 m，没有损失任何海滩区域。海龟在一系列的海滩海拔范围内筑巢，并且在所有海平面上升情况下，首选的筑巢海拔范围内的海滩栖息地总体丧失，后退幅度分别为10 m和30 m。观察到滩涂和筑巢面积损失程度的变化很大。面对广泛的沿海发展和海平面上升，适当的挫折规定的实施和执行有可能维持海滩的生态和经济功能。

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