深海边缘海域近底悬浮颗粒物度的人为持续增加
Zhuangcai Tian1, Xiujun Guo2, Jiaming Xiang2
1Shandong Provincial Key Laboratory of Marine Engineering Geology and the Environment, Ocean University of China, Qingdao 266100, China; State Key Laboratory of Intelligent Construction and Healthy Operation and Maintenance of Deep Underground Engineering, China University of Mining and Technology, Xuzhou 221116, P. R. China.
Environmental research
|January 16, 2026
概括
人类活动,特别是矿产开采和底层拖网,使沉积物流向海洋的数量增加了四倍. 这导致了关键边缘海域近底悬浮颗粒物 (SPM) 的显著增加.
科学领域:
- 海洋地质学海洋地质学
- 海洋学 海洋学 海洋学
- 环境科学 环境科学
背景情况:
- 自1950年以来,人类时代沉积物流向海洋的数量增加了四倍,主要是由于矿产开采.
- 悬浮颗粒物 (SPM) 在深海环境中的分布对海洋生态系统,沉积和生物地化学循环产生重大影响.
研究的目的:
- 分析三大边缘海洋近底SPM的趋势.
- 确定观察到的SPM变化的主要驱动因素.
主要方法:
- 利用了长期调查数据和公布的调查结果.
- 分析了来自南中国海,墨西哥湾和地中海的个人资料数据,跨越了310年的时间.
- 与人类活动相关的SPM趋势,如底部拖网,采矿和工程.
主要成果:
- 在所有三个研究的边缘海洋中观察到近底SPM的持续上升趋势.
- 记录了南中国海近底SPM的两倍以上的增加.
- 确定底层拖网和其他人类活动是增加度的主要驱动因素.
结论:
- 人类活动,特别是底部拖网捕捞,在边缘海域显著增加了近底的SPM.
- 人类活动的持续升级表明,近底的SPM在未来会上升.
- 了解这些趋势对于管理海洋环境和资源至关重要.
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