Abstract: Econetwork is a structural model which is used to simulate the flow of material and energy in ecosystem.The analysis of econetwork is the theory and methods to analyze the flow behavior and feature of material and energy in econetwork,it includes the analysis of flow feature,information indices,stochastic pro-cess, trophic level and sensitivity.A review is systematically given.

Key words: seeding-box total fertilization technology, controlled-release nitrogen fertilizer, rice yield, nitrogen loss, water environment.