Content Changes of Carbon and Nitrogen during the Decomposition of Mire Wetland in Xiaoxing'anling in Northeast China

The global environment change is human beings are facing with the important and urgent environmental problems: in natural and human action double drive, the surface of the earth element biogeochemical process and its environmental effect is the current global change research in the area of the important content. In order to estimate and forecast geochemical cycle of change and to the global life support system influence, since the 1970s on the ecological system of the nitrogen cycle extensive and in-depth research, and in the process of this a series of ecological environment effect.Wetland biogeochemical process is refers to the carbon, hydrogen (water), oxygen, nitrogen, phosphorus and sulfur and various essential elements in the wetland soil and plant all kinds of migration between transformation and energy exchange process. Chemical process including nitrogen, phosphorus and other nutrients in the wetland system of flow and transformation, Wetland in heavy metals and other organic inorganic pollutants absorption, so close, transformation and enrichment, etc.