基于VSD模型的东山县海岸带区域生态脆弱性评价

随着人类社会经济的发展，海岸带区域的生态脆弱性逐渐凸显。本文基于VSD模型，从暴露性、敏感性及适应能力三个维度构建了包括3个层级、23个指标、5个评价等级的海岸带生态脆弱性评价体系，并选取全国第六大海岛县东山县作为研究区域，分为三个单元分区分别进行评价。结果表明，VSD模型可有效用于海岸带区域生态脆弱性的科学评估，评价结论显示东山县的东南部区域脆弱性程度最高，北部区域次之，西南部区域最低。通过筛选对三个区域影响均较明显的指标，得到东山县海岸带区域生态脆弱性的主要构成因子，并有针对性地提出了东山县海岸带综合管理的建议与措施。

Ecological vulnerability assessment of coastal zone in Dongshan county based on VSD model

With the development of human, society and economy, coastal ecosystem vulnerability is gradually emerged.Based on VSD model, a vulnerability assessment approach with three compositions of exposure, sensitivity and adaptation was developed, including 3 hierarchies, 23 indicators and 5 levels.Dongshan, which is the sixth largest island county in China, was taken as a case study.The coastal area was divided into 3 units, each unit was evaluated separately.The result showed that VSD model can be practically used in coastal vulnerability assessment, in Dongshan case the southeast region was with the highest vulnerability, the northern region took the second place, and the southwest region was the lowest.By selecting the main components of vulnerability, countermeasures and suggestions were proposed for comprehensive management of coastal zone in Dongshan County.