15N示踪技术在湿地氮素生物地球化学过程研究中的应用进展

稳定性同位素技术是现代生态学研究中的一门应用技术,它几乎在生态学研究的各个领域都有着广泛的应用。其中¹⁵N技术由于具有示踪和区分氮素物质的源与去向等优越性而在生态系统氮循环研究中发挥了极为重要的作用。文章主要从湿地氮素的输入过程、转化过程以及归趋过程三方面综述了该技术在当前国内外湿地氮素生物地球化学过程研究中的应用进展,特别指出当前基于该技术的湿地氮素生物地球化学过程研究尚缺乏一定的系统性、深入性和广泛性。最后,文章就该技术在湿地氮素生物地球化学过程研究中的应用前景进行了展望研究。

Application Advance of 15N Trace Technique in the Biogeochemical Process of Nitrogen in Wetland

As an applied technology in modern ecology research, stable isotope technique has been prosperously applied to the ecological fields. Because stable isotope ^15N technique can trace and distinguish the source and fate of nitrogen matters, and it plays a very important role in the research on nitrogen cycling in natural ecosystems. This paper firstly summarizes, mainly from the processes of input, transformation and fate, the advance in current research on the biogeochemical process of nitrogen in wetland based on stable isotope ^15N technique. Then it analyzes the issues existed in current research, and points that, in particular, the current research is still very weak, and lacks systemic, deep and broad study. Finally, this paper forecasts the prosperous application of this technique in the research on the biogeochemical process of nitrogen in wetland, and indicates that its application will promote the depth of wetland quantitative . research and contribute to the development of wetland science in China