Evaluation of water resources carrying capacity in Changzhi City Based on Analytic Hierarchy Process

With Changzhi City being established as the provincial sub central city, the demand for water resources in the whole city has changed greatly, and the contradiction between supply and demand of water resources still appears in some areas. In order to have a comprehensive and in-depth understanding of the local water resources carrying capacity, the index system was established by selected 14 indices from four subsystems, and the analytic hierarchy process and index evaluation method were used to establish the evaluation model to evaluate and analyze the whole city and each county. The results show that the water resources utilization degree was the largest. The whole city is in a strong level with great potential. Among the counties and districts, only Luzhou district and Shangdang district water resources carrying capacity was medium and other counties were high or highest. The conclusion reflects the current situation of water resources and has guiding significance for future planning and allocation.