海洋开发与管理2025，Vol.42Issue(12)：92-101,10.
北戴河沿岸海域溶解氧变化分析
Analysis of Dissolved Oxygen Variation in the Coastal Waters of Beidaihe
摘要
Abstract
Dissolved Oxygen(DO),an important indicator reflecting changes in marine water quality,plays a significant role in maintaining the balance of marine ecosystems.Based on monitoring data collected from three buoys in the coastal waters of Beidaihe during the summer of 2024,this study analyzed the spatiotemporal distribution characteristics of DO and its correlations with environmental factors.The results indicated that the lowest daily average values of DO in the summer for the Laohushi and Jinshanzui areas occurred in late July,at 5.67 mg/L and 5.39 mg/L respectively,while the lowest value in the Yanghekou area was in early August,at 6.28 mg/L.After late July,there was a sharp increase in precipitation,leading to significant fluctuations in DO concentrations.On August 24th,the maximum daily average values of DO for the summer were observed simultaneously in the three areas of Laohushi,Yanghekou,and Jinshanzui,which were 10.37 mg/L,11.22 mg/L,and 11.41 mg/L respectively.The highest DO value within the day occured between 16:00 and 17:30,and the lowest value occured between 6:00 and 7:30.Pearson correlation analysis revealed that DO concentration in the three areas of Laohushi,Yanghekou,and Jinshanzui was significantly positively correlated with pH,Chlorophyll-a(Chl a),and Atmospheric Pressure(AP).Path analysis of the main environmental factors affecting DO concentration indicated that DO concentration in Laohushi and Jinshanzui areas was mainly influenced by pH and Chl a,while in the Yanghekou area,it was primarily affected by pH.关键词
北戴河/溶解氧/多元逐步回归/通径分析Key words
Beidaihe/Dissolved Oxygen/Multiple stepwise regression/Path analysis分类
资源环境引用本文复制引用
王全颖,张建乐,张勇,张万磊,褚芹芹,张永丰,赵洁..北戴河沿岸海域溶解氧变化分析[J].海洋开发与管理,2025,42(12):92-101,10.基金项目
自然资源部北海局科技创新赋能海洋事业高质量发展三年行动项目(2023B03-STC). （2023B03-STC）
