海岸建筑后退线设置方法与实践研究

Method and practice in setting coastal constructive setback line

  • 摘要: 海岸建筑后退线设置是保护海岸带区域生态环境,保障海岸区域建筑安全及维护海岸景观的重要规划手段。本文以龙海市海岸带为研究对象,考虑海岸侵蚀、海洋灾害等自然因素的基础上,结合生态系统服务价值,确定龙海市不同岸线类海岸建筑后退线的距离,为海岸带空间规划提供基础依据。结果确定龙海市不同岸线类型的海岸建筑后退线的距离分别为砂质岸线240 m、淤泥质岸线240 m、基岩岸线30 m、生物岸线220 m、人工岸线30 m。

     

    Abstract: A framework was proposed in this study to set coastal constructive setback line, in which the natural processes including coastal erosion and natural disaster were first considered to determine the distance of coastal constructive setback line, and then geospatial technology, ecosystem service evaluation, and scenarios analysis were coupled to finalize the coastal constructive setback line setting.This framework was further applied to Longhai, a coastal county-level city in Southeast China.Results show that the final coastal constructive setback line for sandy coastline, muddy coastline, bedrock coastline, biological coastline, and artificial coastline is 240 m, 240 m, 30 m, 220 m, and 30 m, respectively.This study might provide scientific support for coastal spatial planning in Longhai.

     

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