湿地土壤氮素研究概述

Nitrogen in Wetland Soils: A Review

湿地是自然界最富生物多样性的生态景观和人类最重要的生存环境之一,具有巨大的环境调节功能和效益。湿地发挥着N素的源、汇和转换器的功能,而湿地土壤中N素含量及其迁移转化过程也显著影响着湿地生态系统的结构和功能,所以湿地土壤N素过程研究成为当前研究热点之一。本文对湿地土壤N素贮量,湿地对N素的截留能力以及湿地N素的迁移转化过程等方面进行了综述。

Wetland, with important ecological functions and values, is an ＂ecological landscape rich in biodiversities and one of the most important habitats for man. Wetlands serve as source, sink or transfer of nitrogen, and concentrations, movement and transformation of nitrogen in wetland soils will significantly influence the structures and functions of wetland ecosystems. Hence study on nitrogen in wetland soils has become one of the hot spots at present. Nitrogen is one of the indictors of nutrient level in wetlands. Studies on nitrogen contents in wetland soils, nitrogen retention in wetlands and processes of nitrogen movement and transformation were reviewed in this paper.