RUI: Interrelation between Nitrogen and Carbon Cycling in Water

RUI：水中氮和碳循环之间的相互关系

• 批准号: 8922815
• 负责人: Ronald Jones
• 金额: $ 23.11万
• 依托单位: Florida International University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-04-15 至 1994-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8922815&HistoricalAwards=false
• 关键词: RUI; Interrelation; between; Nitrogen; Carbon

Carbon monoxide and methane are important trace gases in the surface waters of the marine environment. An understanding of the mechanisms by which these gases are produced and consumed is important to our understanding of carbon cycling in the world's oceans. The chemolithotrophic ammonium oxidizing bacteria appear to play an important role in the consumption of these gases and thus represent an important link between the carbon and nitrogen production of CO and on the rate of ammonium and nitrite oxidation. Microbial processes are hypothesized to play an important role in the formation of photochemically active species involved in CO production. The objectives of this 3-year laboratory and field program are to: (1) examine the photochemical and photobiological sources and rates of CO production; and (2) examine the spatial and temporal distribution of CO, CH4, inorganic nitrogen, terrestrial and marine sources of photochemically active species, and trace gas consumption. This research will provide information related to the coupling of the nitrogen and carbon cycles, the role of microorganisms in the formation and consumption of CO, the distribution of; CO, CH4, NH4+, NO-2, and NO3-, the organic sources of CO photoproduction and the wavelengths involved in CO photoproduction.

一氧化碳和甲烷是大气中重要的痕量气体， 海洋环境的表面沃茨。 了解 这些气体产生和消耗的机制 对我们理解地球上的碳循环 世界的海洋。 化能无机营养型氨氧化 细菌似乎在消费中起着重要作用， 这些气体，因此代表了一个重要的联系， 碳和氮生产的CO和对速率 铵和亚硝酸盐氧化。 微生物过程是 假设在形成中发挥了重要作用 参与CO生产的光化学活性物质。 的 这一为期三年的实验室和实地方案的目标是： (1)检查光化学和光生物学来源， CO生产率;（2）检查空间和 CO、CH 4、无机氮 陆地和海洋光化学活性源 物种和追踪气体消耗。 这项研究将提供 与氮和碳的偶联相关的信息 循环，微生物在形成中的作用， CO的消耗，CO，CH 4，NH 4+，NO-2， 和NO3-，CO光生的有机源和 参与CO光合作用的波长。