On the basis of research results and literature data in recent years,research and regulation of nitrogen demand,inputs and emissions are more detailed and in-depth in ecological system.This paper studies on nitrogen dynamics from the perspective of food chain can fully explore nitrogen utilization of characteristics and change rules,which reviews flow characteristics of nitrogen and its environmental impacts,and points out the existing problems and the direction of development in the future in which the research process of nitrogen flow in food chain.Moreover, this provides a scientific basis ...
