波罗的海排水盆地遗留的营养物质:过去的做法如何影响缩管理
Bärbel Müller-Karulis1, Michelle L McCrackin1, Benoit Dessirier1
1Baltic Sea Centre, Stockholm University, 106 91 Stockholm, Sweden.
Journal of environmental management
|September 20, 2024
概括
波罗的海流域的营养遗留池对河流负载有重大影响. 了解这些储存效应和时间延迟可以减少对未来缓解措施的需求.
科学领域:
- 环境科学 环境科学
- 生态系统建模 生态系统建模
- 水资源管理 水资源管理
背景情况:
- 自1900年以来,人类对波罗的海水域的营养投入增加了三倍,在20世纪80年代达到顶峰.
- 陆地和内陆水域的营养储存创造了遗留池,影响了对波罗的海的出口.
- 陆地和水中的水槽在去除营养物质方面发挥着主导作用.
研究的目的:
- 开发一个营养命运模型,将流域输入与波罗的海载荷从1900年到现在联系起来.
- 量化营养储存,时间延迟和遗留影响对河流营养负载的影响.
- 评估对波罗的海管理计划的影响.
主要方法:
- 为波罗的海水域构建了一个营养命运模型.
- 在陆地和内陆水域 (遗留池) 内建的临时营养储存.
- 通过陆地和水中的水槽去除营养.
主要成果:
- 模型表明的反应时间为4年,的反应时间为6-18年.
- 矿物肥的使用占据了投入的优势;污水处理影响了负载组成.
- 来自遗留池的动员是当前人为河流营养物质负载的主要来源.
- 过去减少的遗留效应提供了未实现的减负潜力.
结论:
- 营养储存和时间延迟显著影响到波罗的海的河流载荷.
- 过去减少的遗留效应可以有助于实现管理目标.
- 考虑到这些因素可能会减少未来缓解措施的必要性.
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