印度尼西亚塞马兰湾的生物地化学变量记录,面临潜在的沿海脱氧化
A'an Johan Wahyudi1, Hanif Budi Prayitno1, Afdal1
1Research Center for Oceanography, National Research and Innovation Agency of the Republic of Indonesia, BRIN's Aprilani Soegiharto Science Complex, Jl. Pasir Putih 1, Ancol Timur, Jakarta, 14430, Indonesia.
Marine environmental research
|April 29, 2025
概括
印度尼西亚塞马兰湾的海岸脱氧问题越来越令人担忧. 溶解氧气水平正在下降,特别是在沉积物-水界面,表明潜在的生态系统压力.
科学领域:
- 海洋生物地质化学海洋生物地质化学
- 沿海海洋学研究
- 环境科学环境科学
背景情况:
- 全球沿海地区面临着溶解氧 (DO) 的下降,导致脱氧.
- 印度尼西亚塞马兰湾因其半封闭的自然和陆地输入而脆弱.
- 脱氧影响沉积物-水界面和整体沿海生态系统的健康.
研究的目的:
- 评估塞马兰湾的沿海脱氧化潜力.
- 分析多年生物地质化学数据和沉积物的稳定同位素.
- 调查环境因素对底部DO变化的影响.
主要方法:
- 多年记录的分析:营养度,叶绿素-a (Chl-a),表面和底部DO.
- 沉积物稳定同位素分析.
- 温度,DO和Chl-a受季风季节影响的空间分析.
主要成果:
- 观察到DO (-0.055 mmol/m3每年) 和底部DO (-0.048 mmol/m3每年) 的下降趋势.
- 独特的空间模式受到季风季节对温度,DO和Chl-a的影响.
- 沉积物同位素分析表明,在特定地点和洪水道可能出现脱氧.
结论:
- 沿海脱氧是塞马兰湾的一个重要问题,影响了沉积物-水界面.
- 监测底部溶解氧气动态是至关重要的.
- 需要进一步的研究来完善模型并解决改善环境管理的局限性.
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