测绘通报 ›› 2026, Vol. 0 ›› Issue (6): 84-91.doi: 10.13474/j.cnki.11-2246.2026.0613

• 学术研究 • 上一篇    

基于资源一号高光谱影像的养殖海域富营养化反演

陈红梅1, 陈家钰2,3, 陈芸芝2,3, 罗冬莲1, 游远新1, 许春晓1, 张伟铃1   

  1. 1. 福建省水产研究所, 福建 厦门 361013;
    2. 福州大学空间数据挖掘与信息共享教育部重点实验室, 福建 福州 350108;
    3. 卫星空间信息技术综合应用国家地方联合工程研究中心, 福建 福州 350108
  • 收稿日期:2025-10-22 发布日期:2026-07-09
  • 通讯作者: 罗冬莲。E-mail:295807046@qq.com
  • 作者简介:陈红梅(1979—),女,硕士,助理研究员,主要研究方向为海洋遥感、地理信息系统和调查规划。E-mail:563898690@qq.com
  • 基金资助:
    国家重点研发计划(2024YFD2400300);福建省省属公益类科研院所基本科研专项(2023R1012005);福建省海洋服务与渔业高质量发展专项资金(FJHY-YYKJ-2024-1-14;FJHY-YYKJ-2024-1-18-2)

Inversion of eutrophication in aquaculture areas based on ZY-1 hyperspectral imagery

CHEN Hongmei1, CHEN Jiayu2,3, CHEN Yunzhi2,3, LUO Donglian1, YOU Yuanxin1, XU Chunxiao1, ZHANG Weiling1   

  1. 1. Fisheries Research Institute of Fujian, Xiamen 361013, China;
    2. Key Laboratory of Spatial Data Mining & Information Sharing of Ministry of Education, Fuzhou University, Fuzhou 350108, China;
    3. National and Local Joint Engineering Research Center for Comprehensive Application of Satellite and Spatial Information Technology, Fuzhou 350108, China
  • Received:2025-10-22 Published:2026-07-09

摘要: [目的] 构建基于资源一号高光谱影像的养殖海域富营养化反演模型,能够为海洋渔业管理、海洋环境保护提供科学参考。[方法]本文以福建省诏安湾和东山湾为研究区域,基于实测光谱反射率、实测水质数据及资源一号高光谱影像,筛选出与化学需氧量(COD)、活性磷酸盐(DIP)及无机氮(DIN)对数相关性最高的4个波段组合作为特征波段,构建CatBoost、随机森林及多元线性回归3个模型;进行精度评价,确定最优模型,进而反演富营养化状况,并进行时空特征分析。[结果]CatBoost模型展现出更高的反演精度,COD、DIP、DIN的决定系数R2分别为0.80、0.71、0.88。[结论]诏安湾富营养化指数季节变化明显,秋季部分区域富营养化指数较高,春季和冬季较低。东山湾水质总体优于诏安湾,不同时期绝大部分区域富营养化指数较低,水质状况较好。

关键词: 富营养化, 水产养殖, 资源一号, CatBoost, 随机森林

Abstract: [Purposes]A nutrient enrichment inversion model for aquaculture sea areas based on ZY-1 hyperspectral images is constructed to provide scientific reference for marine fishery management and marine environmental protection.[Methods]Using Zhao'an Bay and Dongshan Bay in Fujian province as research areas,we select 4 spectral bands with the strongest correlation to the logarithm of COD,DIP,and DIN based on measured spectral reflectance,water quality data,and ZY-1 hyperspectral imagery.Three models (CatBoost,random forest,and multiple linear regression) are developed.After precision evaluation,the optimal model is identified to assess eutrophication status and conduct spatiotemporal feature analysis.[Findings]Results show that the CatBoost model demonstrated higher inversion accuracy.The R2 values for COD,DIP,and DIN are 0.80,0.71,and 0.88,respectively.[Conclusions]The inversion results reveal significant seasonal variations in Zhaoan Bay's eutrophication index,showing higher levels in some areas during autumn and lower levels in spring and winter.Dongshan Bay exhibit better overall water quality than Zha'an Bay,with most regions maintaining low eutrophication indices across different periods,indicating relatively good water conditions.

Key words: eutrophication, aquaculture, ZY-1 satellite, CatBoost, random forest

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