Evaluation of Water Resource Carrying Capacity in Sichuan Province Based on Principal Component Analysis

This study explores the relationship between water resource carrying capacity and the coordinated development of the water-economy-ecosystem in Sichuan Province in the future. An assessment framework composed of four subsystems with a total of fourteen indicators is constructed, covering nearly fifteen years of data from 2008 to 2022. Principal component analysis is utilized for the analysis, and the results show that the principal components integrate key elements such as economy, efficiency, water resource systems, and population, revealing the importance of these factors in determining water resource carrying capacity. The water consumption per ten thousand GDP and per ten thousand industrial added value in Sichuan Province are significantly lower than the national average level, indicating an overall upward trend in water resource carrying capacity, reflecting Sichuan Province's high level of water resource utilization efficiency, which far exceeds the national average.