垂直分层对2020年黄海春季开花的影响
Go-Un Kim1, Jaeik Lee1, Yong Sun Kim1,2
1Korea Institute of Ocean Science and Technology, Busan, South Korea.
Scientific reports
|August 31, 2023
概括
弱化的海洋分层,而不是COVID-19,抑制了2020年黄海植物浮游生物的繁荣. 强烈的混合阻碍了营养和叶绿素的积累,减少了开花的强度. 这凸显了海洋物理因素的关键作用.
科学领域:
- 海洋生态海洋生态学
- 海洋学 海洋学 海洋学
- 生物地质化学生物地质化学
背景情况:
- 黄海是韩国和中国的重要海洋资源,在2020年春天经历了减少的植物浮游生物的开花.
- 以前的研究表明,减弱的热分层和表面冷却是原因,与COVID-19相关的营养物质下降假设形成鲜明对比.
研究的目的:
- 阐明海洋环境因素与黄海生态系统之间的关系.
- 确定2020年春季植物浮游生物开花减少的主要驱动因素.
主要方法:
- 利用观测数据和海洋物理-生物地球化学模型.
- 分析的营养度 (酸盐,酸盐),甲和分层强度.
主要成果:
- 削弱分层被确定为抑制2020年春季开花的关键因素.
- 强烈的垂直混合阻止了营养和叶绿素在euphotic区域的积累,导致鲜花减少.
- 2020年营养物质度与前几年相比显著下降,并且在年际变化范围内.
结论:
- 海洋物理因素,特别是分层减弱和垂直混合增加,对黄海的浮游植物生物质产生了重大影响.
- COVID-19大流行对营养水平的影响以及随后的植物浮游生物繁荣是可以忽略不计的.
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