Investigation of nutrient transports from the North Sea into the Baltic Sea ecosystem and estimation of their area of influence

调查从北海到波罗的海生态系统的养分输送并估计其影响范围

• 批准号: 251907505
• 负责人: Dr. Hagen Radtke
• 金额: --
• 依托单位: Leibniz-Institut für Ostseeforschung Warnemünde (IOW)
• 依托单位国家: 德国
• 项目类别: Research Fellowships
• 财政年份: 2013
• 资助国家: 德国
• 起止时间: 2012-12-31 至 无数据
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/251907505?language=en
• 关键词: Investigation; nutrient; transports; North; Sea

The aim of the project is to investigate the coupling of North Sea and Baltic Sea regarding the eutrophication aspect. For this purpose, a coupled physical-biogeochemical model of the North Sea and Baltic Sea, as it is developed and used at Aarhus University, shall be extended by a nutrient tagging method which allows to track the spreading of the nutrients in the Baltic Sea which entered from the North Sea. Especially we want to find out from which source area (German Bight, Central North Sea, or recirculation from the Baltic Outflow) the nutrients originate, how far they are transported into the Baltic Sea and after what residence time they leave the Baltic Sea again. Also, we aim at a quantification of the amount of nutrients entering during single inflow events in relation to those entering with the permanent water exchange, and want to find out how the spatial distribution patterns of these nutrients differ, also under concideration of biological processes.

该项目的目的是调查北海和波罗的海在富营养化方面的耦合。为此目的，奥胡斯大学开发和使用的北海和波罗的海物理-生物地球化学耦合模型应通过营养物标记方法加以扩展，以便跟踪从北海进入波罗的海的营养物的扩散。特别是，我们想找出营养物质来自哪个来源地区（德国湾，北海中部或波罗的海外流的再循环），它们被运送到波罗的海多远，以及在什么停留时间后它们再次离开波罗的海。此外，我们的目标是在一个定量的营养物质的量进入在单一流入事件与那些进入永久性的水交换，并希望找出这些营养物质的空间分布模式的不同，也concideration下的生物过程。