检索
E-mail
RSS

作者投稿 主编审稿 专家审稿 远程编辑

热带海洋学报 ›› 2025, Vol. 44 ›› Issue (3): 188-196.doi: 10.11978/2024183CSTR: 32234.14.2024183

• 海洋环境科学 • 上一篇    下一篇

基于环境减灾二号卫星的2023年铁山港红树林病虫害动态监测

袁羽杰1,2(), 钟仕全1,2(), 蒋卫国3, 初爱萍1,2, 凌子燕1,3   

  1. 1.南宁师范大学地理科学与规划学院, 广西 南宁 530001
    2.南宁师范大学北部湾环境演变与资源利用教育部重点实验室, 广西 南宁 530001
    3.北京师范大学地理科学学部, 北京 100875
  • 收稿日期:2024-09-28 修回日期:2024-12-03 出版日期:2025-05-10 发布日期:2025-06-04
  • 通讯作者: 钟仕全
  • 作者简介:

    袁羽杰(2000—), 女, 湖北省仙桃市人, 硕士研究生, 从事生态遥感应用研究。email:

  • 基金资助:
    国家自然科学基金广西联合基金重点支持项目(U21A2022)

Study on mangrove pests and diseases monitoring for Tieshan Port in 2023 based on HJ-2A/B satellites

YUAN Yujie1,2(), ZHONG Shiquan1,2(), JIANG Weiguo3, CHU Aiping1,2, LING Ziyan1,3   

  1. 1. School of Geography and Planning, Nanning Normal University, Nanning 530001, China
    2. Key Laboratory of Environment Change and Resources Use in Beibu Gulf, Ministry of Education, Nanning Normal University, Nanning 530001, China
    3. Faculty of Geographical and Planning, Beijing Normal University, Beijing 100875, China
  • Received:2024-09-28 Revised:2024-12-03 Online:2025-05-10 Published:2025-06-04
  • Contact: ZHONG Shiquan
  • Supported by:
    National Natural Science Foundation of China (NSFC) Guangxi Joint Fund Key Support Project(U21A2022)

RichHTML

PDF (PC)

赞

摘要： 准确识别红树林病虫害及监测其变化过程, 对红树林生态系统保护、修复具有重要意义。2023年广西铁山港红树林发生了严重的红树林病虫害, 使用国产环境减灾二号卫星(HJ2A、HJ2B)的快速获取数据的特点, 通过反演遥感植被归一化差值植被指数(normalized difference vegetation index, NDVI)和植被覆盖度(fractional vegetation cover, ‌FVC)参数, 进行阈值分割, 获取受病虫害红树林的面积及受害程度。结果表明: (1)2023年铁山港受病虫害影响的红树林最大面积为571.52hm², 占铁山港红树林总面积的51.60%; (2)当0.1≤FVC≤0.5时, 红树林受病虫害侵害, 对病虫害红树林的受灾程度划分为3个等级, 0.1≤FVC< 0.23为重度受灾, 0.23≤FVC<0.46为中度受灾, 0.46≤FVC≤0.5为轻度受灾, 其中2023年10月8日重度受灾的红树林为257.82hm², 占该时间受灾红树林面积的45.11%; (3)2023年10月8日时铁山港病虫害红树林面积最大且受灾程度最严重。

关键词: 环境减灾二号卫星, 红树林, 病虫害, 动态监测, 铁山港

Abstract:

Accurately identifying and monitoring the changes in mangrove pest and disease outbreaks is of great importance for the protection and restoration of mangrove ecosystems. In 2023, a serious mangrove pest and disease outbreak occurred in Tieshan Port, Guangxi. Using the rapid data acquisition feature of the Huanjing Jianzai-2A/B (HJ-2A/B) satellites, the normalized difference vegetation index (NDVI) and fractional vegetation cover (FVC) parameters were inverted through remote sensing, and a threshold segmentation was performed to obtain the area and degree of damage to the mangrove affected by pests and diseases. The results are shown as follows. (1) In 2023, the maximum area of mangrove affected by pests and diseases in Tieshan Port was 571.52 hm², accounting for 51.60% of the total area of mangrove in the port. (2) When 0.1≤FVC≤0.5, the mangrove was affected by pests and diseases. The degree of damage to the affected mangrove was divided into three grades based on FVC, with 0.1≤FVC<0.23 being severe damage, 0.23≤FVC<0.46 being moderate damage, and 0.46≤FVC≤0.5 being light damage. Among them, the mangrove with severe damage on October 8, 2023 was 257.82 hm2, accounting for 45.11% of the total affected mangrove area at that time. (3) On October 8, 2023, the area of mangrove affected by pests and diseases in Tieshan Port was the largest and the degree of damage was the most severe.

Key words: HJ-2A/B satellites, mangroves, pests and diseases, dynamic monitoring, Tieshan Port

中图分类号: 

  • S763