从沿海撤退到向海生长:来自成对社区海滩营养选择的紧急行为

IF 8.2 1区 地球科学 Q1 ENVIRONMENTAL SCIENCES
Earths Future Pub Date : 2025-08-14 DOI:10.1029/2025EF006352
J. Lorenzo-Trueba, A. Janoff, O. Thomas, D. Jin, P. Hoagland, A. Ashton
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引用次数: 0

摘要

沿海社区通常通过海滩营养来解决海岸线侵蚀问题,增加外部来源的沙子来扩大海滩,用于娱乐和财产保护。虽然营养增加了海滨财产的价值,但定期维护的需求创造了相互依赖,因为邻近社区的行为会影响当地的海岸线动态。利用两个相邻群落的耦合模型,研究了群落营养决策与营养砂再分配之间的相互作用。我们发现,一个社区对更宽海滩的重视不仅会影响他们的营养倾向,还会影响他们及其邻居的营养效率和净效益。营养更频繁的社区往往营养效率较低,因为沙子被重新分配到岸边,以牺牲不太活跃的邻居为代价。一项为期20年的新泽西州案例研究证实,营养丰富的社区营养效率较低,包括不太富裕的社区营养明显更多的例子,使富裕的邻居能够享受更高的效率——这表明这种动态可能已经在塑造现实世界的沿海结果。在未来情景中,我们模拟了协调和非协调规划方法下海平面上升导致的沙子成本上升和加速侵蚀的影响,发现不太富裕的社区在非协调的情况下经历了更高的海滨财产损失风险,加剧了海岸管理的差异。这些发现强调了社区间合作在优化海滩营养战略的经济和环境结果方面的重要性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

From Coastal Retreat to Seaward Growth: Emergent Behaviors From Paired Community Beach Nourishment Choices

From Coastal Retreat to Seaward Growth: Emergent Behaviors From Paired Community Beach Nourishment Choices

From Coastal Retreat to Seaward Growth: Emergent Behaviors From Paired Community Beach Nourishment Choices

From Coastal Retreat to Seaward Growth: Emergent Behaviors From Paired Community Beach Nourishment Choices

Coastal communities often address shoreline erosion through beach nourishment, adding externally sourced sand to widen beaches for recreation and property protection. While nourishment enhances beachfront property values, the need for periodic maintenance creates interdependencies where the actions of neighboring communities affect local shoreline dynamics. Using a coupled model of two neighboring communities, we examine the interplay between community nourishment decisions and the redistribution of nourishment sand. We find that the value a community places on wider beaches not only influences their propensity to nourish, but also their and their neighbors' nourishment efficiency and net benefits. Communities that nourish more frequently tend to have lower nourishment efficiency, as sand is redistributed alongshore, benefiting less-active neighbors at their expense. A 20-year New Jersey case study confirms that communities that nourish more have lower nourishment efficiencies, including instances where less wealthy communities nourish significantly more, enabling wealthier neighbors to enjoy higher efficiencies—suggesting that such dynamics may already be shaping real-world coastal outcomes. In future scenarios, we simulate the effects of rising sand costs and accelerated erosion due to sea-level rise under coordinated and non-coordinated planning methods, finding that less wealthy communities experience a higher risk of beachfront property loss under non-coordination, exacerbating disparities in coastal management. These findings underscore the importance of inter-community cooperation in optimizing economic and environmental outcomes in beach nourishment strategies.

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来源期刊
Earths Future
Earths Future ENVIRONMENTAL SCIENCESGEOSCIENCES, MULTIDI-GEOSCIENCES, MULTIDISCIPLINARY
CiteScore
11.00
自引率
7.30%
发文量
260
审稿时长
16 weeks
期刊介绍: Earth’s Future: A transdisciplinary open access journal, Earth’s Future focuses on the state of the Earth and the prediction of the planet’s future. By publishing peer-reviewed articles as well as editorials, essays, reviews, and commentaries, this journal will be the preeminent scholarly resource on the Anthropocene. It will also help assess the risks and opportunities associated with environmental changes and challenges.
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