需要大大减少营养损失,以避免欧洲未来的沿海肥胖化
Aslıhan Ural-Janssen1, Carolien Kroeze2, Erik Meers3
1Earth Systems and Global Change Group, Wageningen University & Research, PO Box 47, 6700AA, Wageningen, the Netherlands; Laboratory of Bioresource Recovery (RE-SOURCE LAB), Ghent University, Coupure Links 653, 9000, Ghent, Belgium.
Marine environmental research
|March 22, 2024
概括
欧洲河流面临着营养污染的增加,可能导致沿海地区的缩. 显著减少和出口对于防止有害藻类繁殖和保护海洋生态系统至关重要.
科学领域:
- 环境科学 环境科学
- 欧洲化研究研究 欧洲化研究
- 水质管理水质管理
背景情况:
- 欧洲农业的快速发展和城市化正在加剧营养损失.
- 高度的营养物质出口到海洋导致沿海肥胖化和有害的藻类繁殖,影响海洋生态系统.
研究的目的:
- 评估到2050年欧洲的 (N) 和 (P) 河流出口.
- 在全球变化情景下确定必要的营养减少目标,以减轻沿海肥胖化.
主要方法:
- 利用MARINA-Nutrients模型模拟来自594条欧洲河流的营养出口,以实现2050年的基线情景.
- 分析了农业 (,肥料) 和国内 (污水) 来源对营养河流出口的贡献.
主要成果:
- 由于全球变化,到2050年,欧洲海洋的营养素出口预计将增加13-28%
- 确定了肥和肥料是出口的主要贡献者 (35%),而污水系统主导出口 (70%).
- 十大污染最严重的河流,为42%的欧洲人口提供服务,是营养管理的关键热点.
结论:
- 避免未来的沿海缩需要大幅减少关键河流的营养物质负载.
- 要求从污染最严重的河流减少超过47%的和高达77%的出口.
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