细菌硝酸盐异化还原成铵过程及其在河口生态系统中的潜在地位与影响

Dissimilatory nitrate reduction to ammonium: the potential and impacts in estuarine regions

摘要:

细菌硝酸盐异化还原成铵(DNRA)过程能够将河口沉积物中的硝氮转化为氨氮，是河口生态系统中潜在的重要氮循环过程之一。本文介绍DNRA机理与分类，综述河口生态系统中DNRA的地位与影响，并总结河口生态系统中几种重要生态因子对DNRA过程的调控与影响。目前DNRA的机理还有待完善。深入研究各类河口生态系统中环境因子对DNRA的调控与影响机制，并研发新的研究方法，将为我国河口地区的水资源保护和生态治理提供科学依据。

Abstract:

Dissimilatory nitrate reduction to ammonium (DNRA) of bacteria is a potentially important path of nitrogen cycling in estuarine regions. This paper introduces the mechanisms and types of DNRA, reviews the value and impacts of DNRA, and summarizes the influence of several major environmental factors on DNRA in estuarine regions. Parts of the mechanisms of DNRA still remain unclear. Further studies focusing on the relationship between DNRA and environmental factors, as well as the development of new methods and techniques are suggested, to provide a scientific basis for the protection and restoration of estuarine regions.