基于集对推理的区域水资源承载力耦合协调度评价方法OA

[Objective]This study aims to enhance the logical rationality and physical interpretability of the evaluation meth-od for the coupling coordination degree between the support and pressure subsystems of regional water resources carrying ca-pacity,while ensuring the consistency in dimension types and orders of magnitude changes between the coupling coordination degree evaluation results and the comprehensive evaluation levels of the subsystems of regional water resources carrying capacity.[Methods]The comprehensive evaluation level of each subsystem was characterized using the identity-discrepancy-contrary connection numbers.Based on the common overall objective of coupling and coordination among subsystems,a set pair reasoning method was constructed based on the logical multiplication operation of two identity-discrepancy-contrary con-nection numbers.The subtractive set pair potential of the connection number obtained from the multiplication operation of the connection numbers of the two subsystems was taken as the evaluation value of the coupling coordination degree between sub-systems.A regional evaluation method of coupling coordination degree of water resources carrying capacity based on set pair reasoning(ECCD-SPR)was established and applied to 16 prefecture-level cities in Anhui Province.[Results]The applica-tion results of ECCD-SPR indicated that the coupling coordination degree of water resources carrying capacity in Anhui Prov-ince showed a spatial distribution characteristic of gradually increasing from northern Anhui to central Anhui and southern An-hui.The evaluation value of the coupling coordination degree was consistent with the dimension types and orders of magnitude changes of the comprehensive level values of the subsystems,and the evaluation values showed strong discriminative capabili-ty.[Conclusion]ECCD-SPR deepens the coupling coordination degree from a state index describing the correlation strength between subsystems to an analytical index revealing the multiplication effect between the connection numbers of set pairs of subsystems.It reveals the principle of set pair multiplication coupling coordination in the water resources-economic society-ecological environment composite system.This method expands the quantitative calculation approach of water resources set pair reasoning and holds application prospects in the field of coupled coordination analysis such as between regional ecological conservation and high-quality development.