Ziyuan Kexue (Mar 2025)
Spatiotemporal differentiation and upgrading paths of new quality productivity of water conservancy in the Yangtze River Economic Belt
Abstract
[Objective] As an inland river economic belt with global influence, the analysis of the spatiotemporal change and upgrading paths of the new quality productivity of water conservancy in the Yangtze River Economic Belt (YREB) is conducive to promoting the high-quality development of water conservancy in the region. [Methods] This study took 110 cities in the YREB as the research object. According to the connotation and characteristics of the new quality productivity of water conservancy, the evaluation indicator system of the new quality productivity of water conservancy is constructed from four dimensions: high technology, high quality, high efficiency, and green. The entropy weight-TOPSIS model and spatial autocorrelation were used to measure the spatiotemporal change of new quality productivity of water conservancy in the YREB from 2011 to 2022. The main driving factors of change were identified by Geodetector. Combined with the fuzzy set qualitative comparative analysis method, this study explored the multiple for improving the new quality productivity of water conservancy. [Results] (1) From 2011 to 2022, the new quality productivity of water conservancy in the YREB showed a fluctuating upward trend, with the characteristics of downstream > midstream > upstream, and there was a phenomenon spatial aggregation. (2) Water consumption per ten thousand yuan of industrial added value, per capita GDP, informatization level, and average water consumption per mu of form land irrigated land had stronger explanatory power for the spatial differentiation of new quality productivity of water conservancy. The key interaction factors included per capita GDP, water reuse rate, and water consumption per ten thousand yuan of industrial added value. (3) The configuration paths of new quality productivity enhancement of water conservancy can be summarized into six types, including scientific and technological efficiency, economic foundation, scientific and technological environmental protection, economic leadership, scientific and technological leadership, and comprehensive development. The upstream area should focus on the enhancement path with water science, water infrastructure, water environment, and water ecology as the core conditions; the midstream area should focus on the enhancement path with water economy, water efficiency, and water technology as the core conditions; and the downstream area should continue to adhere to the upgrading path with water economy as the core condition. [Conclusion] The level of new quality productivity of water conservancy in the YREB had shown a growing trend and distinctive geographical characteristics. The current status of new quality productivity of water conservancy in each subregion and the dominant driving factors should be considered, and appropriate enhancement paths should be selected to improve the new quality productivity of water conservancy.
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