Abstract:

Making aquatic ecosystem health assessment reasonably is conducive to understand the aquatic ecosystem status and provide reference for restoration of aquatic ecosystem. The paper summarizes the three dominating indicators (ecological indicators, social and economic indicators, physicochemical indicators) and two methods (indicator species method and index system method) for assessing the aquatic ecosystem health. And it analyzes the advantages and disadvantages of each method for assessing aquatic ecosystem health. Meanwhile, it forecasts the future development of aquatic ecosystem health assessment. The author considers that to catch the accurate result, leading appraisable indexes should be chosen and determined based on considering the specific circumstance of the research area about assessable objects, meanwhile a particular evaluation method in combination with other methods should be adopted in the course of the evaluation of aquatic ecosystems.