【摘要】 沼泽湿地是湿地生态系统的重要组成部分,在我国天然湿地面积中占有很大比重,作为氮素的源、汇和转换器,其结构和功能对生态系统氮素循环具有显著影响。本文从沼泽湿地氮素的存在形式、输入与固定、迁移转化及影响因素等方面综述了沼泽湿地氮素循环的过程,并对氮素循环过程造成的生态环境效应进行了分析,最后对沼泽湿地氮循环的进一步深化研究进行了展望。更多还原

【Abstract】 The marsh wetland is an important part of wetland ecosystems, which occupied a large proportion of the natural wetland area in China. As the source, sink and converter of nitrogen, its structure and function significantly affected the nitrogen cycle. The process of nitrogen circulation in marsh wetlands was summarized in different respects, including existence forms, input, immobilization, transformation and influence factor of nitrogen in marsh wetlands, and analysis was made of the ecological environmental effect caused by the nitrogen cycle. At last, a further research was prospected on the nitrogen cycle in marsh wetlands in the future.更多还原