Nitrogen cycle characteristics in wetlands and its influence to natural environment

Wetlands are among the most productive life-support systems in the world and are of immense socio-economic and ecological importance to mankind. They are critical for the maintenance of biodiversity and perform a great role in the biosphere. Wetlands serve as a source, sink or transfer of nitrogen (N). The concentration, movement and transformation of nitrogen in wetland soil will significantly influence the structures and functions of wetland ecosystems. So study on nitrogen in wetland soils has significance to protect the environment. In this paper, the inputs, outputs and biogeochemical cycle of nitrogen in wetlands are introduced. The influence of wetland nitrogen cycle to the nature environmental change is also discussed.