Evaluation of water resource’s carrying capacity based on three-element connection number a case study of Beijing-Tianjin-Hebei region

Abstract

This study is to analyze the relationship between human settlements system and water resources, select the water resource?s carrying capacity index, and construct a system based on the human settlements system theory for the water resource?s carrying capacity index. The index weight is determined by the analytic hierarchy process, and the set pair analysis method is used to calculate the connection number and evaluation grade of samples in Beijing, Tianjin, and Hebei Province from 2016 to 2019. The results show that there are differences in water resources carrying capacity from the perspective of human settlements in Beijing, Tianjin, and Hebei Province, and the changing trend of water resources carrying capacity in the three regions is different. The introduction of human settlement theory into the construction of water resource?s carrying capacity index system can better reflect the carrying capacity of water resources to human society and can provide a new perspective for other related research in the future.