生态与农村环境学报2026，Vol.42Issue(4)：529-537,9.DOI:10.19741/j.issn.1673-4831.2025.0528
近45年广东沿海赤潮时空演变特征分析
Spatio-temporal Evolution Characteristics of Red Tide in Coastal Guangdong over the Past 45 Years
摘要
Abstract
The frequent occurrence of red tide disasters has caused severe ecological,resource and environmental challen-ges for coastal nations,resulting in substantial economic losses.With the advancement of marine"Blue Granary"initia-tives,mitigating red tide hazards and safeguarding marine ecosystems have become increasingly urgent.This study com-piles red tide records from 1980 to 2024 coastal Guangdong,analyzes their spatio-temporal distribution using Geographic Information Systems(GIS).Key findings followed certain patterns:Red tides in coastal Guangdong exhibit both perennial and seasonal characteristics,with peak occurrences in spring.The annual frequency shows a fluctuating upward trend,while the cumulative annual affected area varies significantly.Distinct phased variations are observed across decades:low frequency in the 1980s,increased occurrence from the 1990s,and peak levels during the first decade of the 21st century.High-frequency areas include the Pearl River Estuary,Mirs Bay,Daya Bay,the coastal Zhanjiang in western Guangdong and the coastal Chaoshan in eastern Guangdong.The top four red tide species by occurrence frequency are Noctiluca scintil-lans,Phaeocystis globosa,Akashiwo sanguinea and Skeletonema costatum.By analyzing data spanning a broader time frame and incorporating the latest information,this study reveals the distribution patterns of red tide in coastal Guangdong.It provides scientific support for the operational work of red tide forecasting and,consequently,offers reference for govern-ment departments in disaster prevention and mitigation.关键词
赤潮/时空演变特征/地理信息系统/广东沿海Key words
red tide/spatio-temporal evolution characteristics/GIS/coastal Guangdong分类
资源环境引用本文复制引用
仇月萍,向昆仑,许炜铭,周水华,罗军,李希茜,张恩红,李源鸿..近45年广东沿海赤潮时空演变特征分析[J].生态与农村环境学报,2026,42(4):529-537,9.基金项目
广东省科技计划项目(2023B1212060019) （2023B1212060019）
中国气象局秦岭和黄土高原生态环境气象重点实验室开放研究基金(2024Y-15) （2024Y-15）
