| 摘要: |
| 为更好地探究围填海与海岸侵蚀之间的关系，文章以 2009—2024 年为研究时段，基于遥感影像解译岸线及围填海变化，分析了福建围填海演变特征，并构建了围填海产业压力指数
（RIPI）与基于 TOPSIS 模型的海岸侵蚀脆弱性指数（CEVI）。2 个指数均采用熵权法赋权，并结合相关性分析和空间质心迁移模型， 揭示围填海演变对海岸侵蚀脆弱性的影响机制。结果表明：
（1）福建围填海净变化面积呈“先高位波动、后低位稳定”的阶段性特征，2018 年政策实施后开发强度显著下降，开发模式由增量扩张趋向存量优化；（2）海岸侵蚀脆弱性整体下降且对管控政策的响应存在滞后效应，空间上呈“南高北低”格局；（3）RIPI 与 CEVI 呈显著正相关，在剔除 CEVI 中的围填海相关指标后，该相关性依然稳健，表明围填海产业压力是驱动海岸侵蚀脆弱性变化的重要人为因素。进一步分析表明，海岸侵蚀脆弱性格局是由自然因素与人类活动共同作用 的结果。 |
| 关键词: 围填海 海岸侵蚀 脆弱性评价 福建 |
| DOI：10.20016/j.cnki.hykfygl.2026.06.012 |
| 投稿时间：2026-05-09修订日期：2026-06-15 |
| 基金项目:国家重点研发计划项目“基于自然的海洋动力灾害综合防护关键技术与应用”（2023YFC3007900）；中央级科研院所基本科研业务费项目（海三科 2023023）． |
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| Effect of Coastal Reclamation Evolution in Fujian on Coastal Erosion Vulnerability |
| CAO Chao，YUAN Zhenglei，QI Hongshuai，CAI Feng |
| Third Institute of Oceanography，MNR;Key Laboratory of Marine Ecological Conservation and Restoration，MNR;Fujian Provincial Key Laboratory of Marine Ecological Conservation and Restoration;Southern Marine Science and Engineering Guangdong Laboratory（Zhuhai） |
| Abstract: |
| In order to better explore the relationship between reclamation and coastal erosion，this study used remote sensing imagery from 2009 to 2024 to interpret changes in the coastline and coastal reclamation． The evolution characteristics of reclamation in Fujian were analyzed，and the Reclamation Industrial Pressure Index（RIPI）and the Coastal Erosion Vulnerability Index（CEVI）based on the TOPSIS model were constructed．The two indices were uniformly weighted using the entropy weight method，and the impact mechanism of reclamation evolution on coastal erosion vulnerability was revealed through correlation analysis and spatial centroid migration model．The results show that：（1）Fujian’s reclamation exhibited a phased characteristic of“high-level fluctuation followed by low-level stability”in terms of net change area．After the implementation of the policy in 2018，the intensity of reclamation development significantly decreased，and the development mode shifted from incremental expansion toward stock optimization.（2）Coastal erosion vulnerability decreased overall and exhibited a lagged response to regulatory policies，with a spatial pattern of“high in the south and low in the north.”（3）RIPI and CEVI showed a significant positive correlation，and the correlation remained robust even after removing the indicator of reclamation from CEVI．This indicates that reclamation industrial pressure is an important anthropogenic factor driving changes in coastal erosion vulnerability．Further analysis indicated that the spatial pattern of coastal erosion vulnerability resulted from the combined effects of natural factors and human activities. |
| Key words: Coastal reclamation Coastal erosion Vulnerability assessment Fujian |
