Evaluation of Water Resources Utilization Efficiency Based on DEA and AHP under Climate Change

In the context of climate change, problem water scarcity is becoming increasingly serious, and improving efficiency resources use an important measure to alleviate this problem. The evaluation utilization has become basis resource management. Data envelopment analysis (DEA) analytic hierarchy process (AHP) are widely used in efficiency. However, one these methods mostly for evaluation, which cannot reflect influence both objective subjective factors. Therefore, study, we propose a index (WEI) evaluate each region Tumen River Basin (TRB), combining DEA AHP methods. Firstly, DEA-CCR model was quantify domestic, agricultural industrial TRB. DEA-BCC analyze main influences on sector. Secondly, WEI constructed by assigning weights using based importance results show that values most areas within TRB trended upwards between 2014 2019. particular, domestic ranged from 0.294 0.775, while 0.039 0.054 0.031 0.375, respectively. Technical factor influencing This study could provide management mitigation change.