沿海生态系统的变化受到萨姆比亚半岛 (波罗的海) 珀开采的过重倾销的影响
A V Krek1, M O Ulyanova1, E V Krek1
1Shirshov Institute of Oceanology, Russian Academy of Sciences, Moscow, Russia.
Marine pollution bulletin
|March 2, 2024
概括
桑比亚半岛的珀采矿造成了大量悬浮颗粒物,影响了浮游生物. 这些重要的海洋社区的恢复预计将在采矿停止后的1-2年内完成.
科学领域:
- 海洋生物学 海洋生物学
- 环境科学环境科学
- 生态生态学 生态生态学
背景情况:
- 桑比亚半岛的珀采矿历史上涉及直接将采矿纸处置到波罗的海.
- 这种做法导致海洋环境中悬浮颗粒物度极高 (高达200毫克/升).
- 2019年标志着直接将纸处置到波罗的海的停止.
研究的目的:
- 评估珀采矿纸排放对波罗的海浮游生物群落的影响.
- 确定对悬浮物质最敏感的浮游生物群.
- 预测肉排放停止后浮游生物群落的恢复时间表.
主要方法:
- 在纸排放过程中监测悬浮颗粒物度.
- 对浮游生物群落结构和丰富性的分析.
- 对浮游生物的连续抑制和刺激效应的观察.
主要成果:
- 纸排放最初抑制了浮游生物的发展,原因是悬浮固体的高含量.
- 随后,从肉质中注入玻璃石,刺激了浮游生物的生长.
- 克拉多塞拉被确定为对悬浮物质最敏感的浮游生物群.
- 初步预测表明,浮游生物社区的恢复可能需要1-2个季节到1年.
结论:
- 停止直接处理纸对于恢复波罗的海生态系统至关重要.
- 从沉积物中去除微细悬浮颗粒物和防止再悬浮是恢复的关键因素.
- 浮游生物社区的恢复动态受到沉积物特性和再悬浮潜力的影响.
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