摘要
湿地位于水陆过渡地带,干湿交替引起的氧化还原变化是湿地中最为典型、普遍的现象。铁作为湿地中的主要氧化还原物质,它的变化对湿地环境具有重要的指示性作用。本文介绍了湿地中铁的时空分布及其转化规律,指出湿地铁循环的影响因素,分析了湿地铁循环在湿地土壤形成、湿地植物的生理生态、湿地的物质循环、环境指示等方面的效应;最后对湿地铁循环研究中的存在问题及发展方向提出几点建议。
Wetland is a transitional zone between the water and the land. Changing redox is the most common process which is brought about by alternation of wetting and drying in the wetland. Oxygen diffusion occurring in the roots of wetland plants further strengthens the process. Fe is tree of main elements involving in reduction and oxidation soils. Its change can indicate wetland environment. This review introduced the distribution and transformation of Fe and influencing factors Fe cycling, analyzed its effect on wetland soil formation, physiological ecology of wetland plants, material cycling in wetland and environment indicators. Finally, further researches on Fc cycling in wetland were proposed.
出处
《土壤学报》
CAS
CSCD
北大核心
2006年第3期493-499,共7页
Acta Pedologica Sinica
基金
国家自然科学基金:不同水文地貌条件下湿地土壤铁迁移转化及其环境指征(编号:40501030)
中国科学院湿地生态与环境重点实验室开放基金(编号:WELF-2004-B-006)资助
关键词
铁
生物地球化学循环
环境效应
湿地
Iron
Biogeoehemistry cycle
Environmental effect
Wetlands
