The Global Significance of Denitrification in Arctic Shelf Sediments

这项建议是由美国国家科学基金会的北极系统科学计划推动的关于北极环境及其在全球变化中的作用的系统研究的一部分。这是一个为期两年的项目，旨在调查北极沉积物在反硝化过程中的作用。该提案涉及海洋化学/地球化学中的一个根本问题--海洋固定氮含量的长期平衡。由于有充分证据表明，海洋的固定氮含量目前并不平衡，而且知道‘N’的供应可以控制海洋生产力，这是一个研究全球海洋通量和海洋化学循环与气候之间联系的基本问题。

This proposal is part of a systematic study of the Arctic environment and its role in global change promoted by NSF's Arctic System Science Program. It is a two year project to investigate the role of arctic sediments in denitrification processes. The proposal addresses a fundamental problem in marine chemistry/geochemistry - the long-term balance of the fixed nitrogen content of the oceans. As there is good evidence that the fixed nitrogen content of the oceans is not presently balanced and knowing that availability of 'N' can control marine productivity, this is an issue that is fundamental to the study of global ocean fluxes and the linkages between ocean chemical cycles and climate.