塑料污染影响了生态系统过程,包括大河流中的社区结构和功能特征.
Veronica Nava1, Barbara Leoni1, Monica M Arienzo2
1Department of Earth and Environmental Sciences, University of Milano-Bicocca, Piazza della Scienza 1, 20126 Milano MI, Italy.
Water research
|June 8, 2024
概括
河流中的塑料垃圾会造成一片大海.
科学领域:
- 水生生态学 水生生态学
- 环境微生物学环境微生物学
- 聚合物科学 聚合物科学
背景情况:
- 水生生态系统中的塑料碎片迅速形成生物膜,创造了一个被称为"塑球"的新息地.
- 塑层对生态系统特征的生态影响,包括生物多样性和代谢功能,仍未得到充分量化.
- 关于不同塑料状态如何影响生态系统反应的比较研究很少.
研究的目的:
- 量化塑料生物膜对藻类生物质,细菌和藻类生物多样性以及河流生态系统中的代谢功能的影响.
- 评估殖民塑料如何影响生态系统的生产,呼吸和生物地球化学循环 (,,碳,氧).
- 调查环境条件在塑造塑圈社区组成中的作用.
主要方法:
- 在低公河流域的河流中,不同塑料聚合物的化,其特点是塑料污染很高.
- 使用16S和18S rRNA测序量藻类生物量和微生物多样性的量化.
- 测量生态系统的生产,黑暗的呼吸和水的化学变化 (氧气,营养素,碳).
主要成果:
- 生物塑料导致溶解氧的显著减少,导致河水中的缺氧/无毒状态.
- 细菌群落主导着塑料圈,存在潜在的病原体.
- 社区的组成受到河流位置的重大影响,这表明了环境因素的重要性.
结论:
- 塑圈显著改变水生生态系统的新陈代谢和生物地化学循环.
- 塑料污染,特别是在废物管理不善的地区,对生态系统产生了重大影响.
- 塑圈作为一个生物活跃的息地,需要集中研究敏感的淡水环境,如公河.
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