Assessing the influence of ocean alkalinity enhancement on a coastal phytoplankton community - manuscript data

The effect of ocean alkalinity enhancement on a coastal phytoplankton community was assessed via a microcosm experiment. The effect of alkalinity enhancement in two scenarios (i) when enclosed seawater was in equilibrium with atmospheric CO2 and (ii) when enclosed seawater was not in equilibrium with atmospheric CO2 were explored. Alkalinity was increased by ~497 umol/kg in these two treatments and plankton communities, carbonate chemistry, dissolved inorganic nutrients, particulate matter and chlorophyll a dynamics monitored over a 22 day period where a spring bloom occurred.

本研究借助微宇宙实验（microcosm experiment），评估了海洋碱度增强对沿岸浮游植物群落的影响。研究探讨了两种情境下碱度增强的效应：其一为封闭海水与大气CO₂处于平衡状态时，其二为封闭海水与大气CO₂未处于平衡状态时。在这两组处理中，碱度提升约497 μmol/kg；实验周期为22天，期间发生春季藻华，研究人员对浮游植物群落、碳酸盐化学体系、溶解态无机营养盐、颗粒物以及叶绿素a（chlorophyll a）的动态变化开展了监测。