Benthic-pelagic N-cycling under shifting redox conditions and hydro-dynamical forcing (B06)

B6旨在通过实验研究底层水的变化性和O2、NO3-和NO2-的枯竭对秘鲁附近沉积物中氮的损失和循环途径的影响。第二个主要目标是通过量化底栖营养物质通量，结合南半球冬季中上层营养物质输送过程和通量，确定秘鲁近海底栖-中上层营养物质收支的自然变异性。之前在秘鲁近海进行的SFB 754研究是在南半球夏季进行的。B6将有力地补充我们对在不同时间尺度控制秘鲁近海海底上层营养物质清单的关键贡献过程和主要反馈的理解。

B6 aims to experimentally investigate the effects of bottom water variability and depletion of O2, NO3-, and NO2- on nitrogen loss and recycling pathways in the sediments off Peru. The second major aim is to determine the natural variability of the benthic-pelagic nutrient budget off Peru by quantifying benthic nutrient fluxes in combination with pelagic nutrient transport processes and fluxes in austral winter. Previous SFB 754 studies off Peru were carried out during austral summer. B6 will strongly complement our understanding of key contributing processes and major feedbacks controlling benthic pelagic nutrient inventories off Peru at different timescales.