The Relationship between pCO2 and the Delta 13C of Carbon Fixed by Marine Phytoplankton using Marine Mesocosms

海相干酪根的碳同位素组成被认为 主要由CO2的可用性控制。但几乎没有 实验数据存在于不同的CO2水平的影响 关于碳同位素分馏资金提供给两个 多年的研究，以检查增加pCOz水平对 浮游植物碳同位素分馏 利用URI Marine的海洋围隔系统进行植物合成 生态系统研究实验室。实验将使用4个中生态系统水箱 长达16个月每个坦克将在不同的，但 恒定的TCOz、pCOz和pH水平。每周估计 生产力将被提高，温度，盐度，养分， etx。将被监测以了解植物生长素 碳同位素分馏对pCO2增加的响应 水平

The carbon isotopic composition of marine kerogen is thought to be primarily controlled by COz availability. And yet almost no experimental data exists on the effects of different COz levels on carbon isotopic fractionation. Funds are provided for a two years' study to examine the effects of increased pCOz levels on the Fractionation of carbon isotopes of phytoplankton during phytosynthesis using marine mesocosm system at URI Marine Ecosystem Research lab. Experiment will employ 4 mesocosm tanks for up to 16 months. Each tank will be held at differing but constant TCOz, pCOz, and pH levels. Weekly estimates of productivity will be made and temperature, salinity , nutrients, etx. will be monitored to learn about the phytoplanktonic response of carbon isotopic franctionation to increased pCOz level.