Multi-Level Fuzzy Comprehensive Evaluation for Water ResourcesCarrying Capacity of Irrigation District

On the basis of understanding the concept of water resources carrying capacity and the factors affecting water resources carrying capacity,the paper establishes a method of multi-level fuzzy comprehensive evaluation for water resources carrying capacity,and app1ies it to evaluate carrying capacity of Dujiangyan Irrigation District in Sichuan Province,China.The conclusions acquired by the research show that the multi-level fuzzy comprehensive evaluation method is more suitable for the actual use than one-1evel fuzzy comprehensive evaluation method because the former integrates considerations of the hierarchy and fuzzy characters of the evaluation factors.