School of Economics and Finance, Xi'an International Studies University, Xi'an, Shaanxi, China.
PLoS One. 2023 Sep 28;18(9):e0282051. doi: 10.1371/journal.pone.0282051. eCollection 2023.
Improving water resources utilization efficiency is conducive to achieving the sustainable development of water resources. It is essential to explore the regional differences and dynamic evolution of agricultural water resources utilization efficiency in China to promote high-quality development of agriculture. In this study, based on the unexpected output, we build a super slack-based measure model to measure agricultural water resources utilization efficiency in China's provinces from 2007 to 2018. In addition, we use the Dagum Gini coefficient to analyze the source of regional differences. Finally, we construct the distributed dynamics model to explore the distribution of the dynamic evolution trend of China's agricultural water resources utilization efficiency. The results reveal that regional difference is the main source of the overall difference in agricultural water resources utilization efficiency in China. Spatial imbalance exists in the development of agricultural water resources utilization efficiency in China. The agricultural water resources utilization efficiency in various provinces and regions of China is relatively stable, having the characteristics of club convergence. The probability of maintaining the initial state is high, and the internal mobility is low. However, with time, the degree of club convergence decreases.
提高水资源利用效率有利于实现水资源的可持续发展。探索中国农业水资源利用效率的区域差异和动态演变，对于促进农业高质量发展至关重要。本研究基于非期望产出，构建超效率 slack 基测度模型，测度了 2007—2018 年中国各省区农业水资源利用效率。此外，利用 Dagum 基尼系数分析了区域差异的来源。最后，构建了分布动态模型，探讨了中国农业水资源利用效率动态演进趋势的分布。结果表明，区域差异是中国农业水资源利用效率总体差异的主要来源。中国农业水资源利用效率发展存在空间不平衡。中国各地区农业水资源利用效率相对稳定，具有俱乐部趋同的特征。保持初始状态的概率较高，内部流动性较低。但是，随着时间的推移，俱乐部趋同程度降低。
