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探索城市扩张模式与洪水的关联 脆弱性:在中国明河三角洲城市聚集区的多维联系中的空间异质性
1The Academy of Digital China(Fujian), Fuzhou University, Fuzhou, 350002, China; Key Laboratory of Spatial Data Mining and Information Sharing of Ministry of Education, Fuzhou University, Fuzhou, 350002, China.
Journal of environmental management
|September 30, 2025
概括
城市扩张模式显著影响沿海洪水脆弱性,边缘扩张构成最大的风险. 量身定制的适应洪水规划对于脆弱城市地区的可持续发展至关重要.
科学领域:
- 环境科学 环境科学
- 城市规划 城市规划
- 适应气候变化 适应气候变化
背景情况:
- 沿海城市因气候变化和城市化而面临越来越多的洪水风险.
- 城市扩张模式 (UEP) 与洪水脆弱性 (FV) 有不一致的关系.
研究的目的:
- 在中国的明河三角洲城市聚集区 (1990-2020) 中解决UEP-多维FV关系.
- 检查与FV相关的城市间发展差异.
- 为洪水适应性规划提供可转移的解决方案.
主要方法:
- 综合评估将景观扩张指数与权重的多维FV指标结合起来.
- 使用地理加权回归和相关性比较进行验证.
- 城市扩张类型的分析:边缘扩张 (EE),填充扩张 (IE) 和跳扩张 (LE).
主要成果:
- 区域扩张在2000-2010年达到顶峰;EE占主导地位,IE加剧,LE保持在最低水平.
- 持续的城市扩张增加了内陆到沿海的自然脆弱性 (NV).
- 社会脆弱性 (SV) 转向中等主导地位;全面脆弱性 (CV) 显示出极化动态.
- UEP与FV正相关,EE最强 (R=0.536) 和LE最弱 (R=0.387).
- 小规模扩张补丁显示出比大型开发更高的FV链接.
结论:
- 欧盟环境规划 (UEP) 显著影响多维地带风险,需要有针对性的洪水适应策略.
- 在小型扩张区域优先考虑自然防洪基础设施.
- 实施具体干预措施:EE的排水改造,LE的基于自然的解决方案,并将IE限制在受保护的核心.
- 基于城市发展阶段的分阶段区域升级对于整合框架至关重要.
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