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热带海洋学报

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Folk分类的海底沉积物类型赋值制图方法研究

林明智1, 2, 覃茂刚1, 2, 陈旸1, 2, 陈波1, 2, 王雪木1, 2, 刘艳锐1, 3, 宋家伟1, 2, 孙龙飞1, 2   

  1. 1. 海南省海洋地质资源与环境重点实验室, 海南 海口 570206;

    2. 海南省海洋地质调查院, 海南 海口 570206;

    3. 中国科学院深海科学与工程研究所, 海南 三亚 572000

  • 收稿日期:2025-06-21 修回日期:2025-08-12 接受日期:2025-08-18
  • 通讯作者: 覃茂刚
  • 基金资助:

    海南省财政专项(46000025T000001444979); 海南省海洋地质资源与环境重点实验室自主课题(22-HNHYDZZYHJZZ006); 海南省财政专项(46000021T000000002276); 海南省海洋地质资源与环境重点实验室开放课题(22-HNHYDZZYHJKF026); 海南省海洋地质资源与环境重点实验室开放课题(24-HNHYDZZYHJKF044)

Research on the Assignment Mapping Method of Seabed Sediment Types Based on Folk Classification

LIN Mingzhi1, 2, QIN Maogang1, 2, CHEN Yang1, 2, CHEN Bo1, 2, WANG Xuemu1, 2, LIU Yanrui1, 3, SONG Jiawei1, 2, SUN Longfei1, 2   

  1. 1. Hainan Key Laboratory of Marine Geological Resources and Environment, Haikou 570206, China;

    2. Marine Geological Institute of Hainan Province, Haikou 570206, China;

    3. Institute of Deep-Sea Science and Engineering, Chinese Academy of Sciences, Sanya 572000, China

  • Received:2025-06-21 Revised:2025-08-12 Accepted:2025-08-18
  • Supported by:

    Financial Project of Hainan Province, China (46000025T000001444979); Independent Project of Hainan Key Laboratory of Marine Geological Resources and Environment (22-HNHYDZZYHJZZ006); Financial Project of Hainan Province, China (46000021T000000002276); Open Project of Hainan Key Laboratory of Marine Geological Resources and Environment (22-HNHYDZZYHJKF026); Open Project of Hainan Key Laboratory of Marine Geological Resources and Environment (24-HNHYDZZYHJKF044)

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摘要： 海底沉积物类型图是海洋科学研究基础图件之一, 在海洋环境分析、海洋工程建设和海洋矿产资源勘查等领域具有重要意义, 本文提出一种基于Folk分类的海底沉积物类型图绘制新方法。建立Folk分类赋值体系, 对海南岛西南海域表层取样站位数据开展空间插值分析后, 进行分类赋值, 并叠加栅格, 将栅格与Folk分类赋值体系挂接, 再进行栅格蚕食, 从而绘制海底沉积物类型图。对比自然邻域法、反距离权重法、克里金法和样条函数法的插值应用分析, 推荐自然邻域法作为本研究制图的基础。该方法操作流程简单, 制图效率高, 不受主观因素的影响, 可适用于不同比例尺或不同采样站位间距的海底沉积物类型图绘制, 特别是面积大、样品数量多、沉积物类型多时能快速绘制, 较传统的手绘方法效率高, 实用性强, 可在实践中推广使用。

关键词: 沉积物类型图, 空间插值, 自然邻域法, 重分类, 栅格计算, 栅格蚕食

Abstract: Seafloor sediment type maps play a crucial role in marine environmental analysis, marine engineering construction, and the exploration of marine mineral resources. This study proposes a novel methodology for generating seafloor sediment-type maps based on the Folk classification system. Spatial interpolation analysis, conducted on surface sediment data from the southwestern waters of Hainan Island, was used to develop a Folk classification system. After data classification, a grid was overlaid to integrate the grid with the Folk classification system. Subsequently, grid erosion was performed to produce the seafloor sediment type map. In a comparative analysis of interpolation methods, including Sibson, IDW, Kriging, and Spline methods, Sibson method was used as the foundation for mapping in this study. This methodology used in this study has a straightforward operational process, high mapping efficiency, and independence from subjective factors. It can generate seafloor sediment type maps at various scales or sampling station intervals, particularly in scenarios involving large areas, numerous samples, and diverse sediment types. This method can also produce results more rapidly than traditional hand-drawn methods. This practical approach can potentially be applied in several real-world settings.

Key words: sediment type map, spatial interpolation, Sibson, reclassification, raster math, Nibble