Irrigation water pricing based on the ELES-WPTI model in the Yinda-Jihuang project of China

IF 1.5 4区环境科学与生态学 Q4 WATER RESOURCES Water Policy Pub Date : 2023-04-21 DOI:10.2166/wp.2023.004

Hewen Chen, Ting Wang, G. Fang, Huaxiang He, Xinmin Xie, Mingwan Yin, Ping Xiao

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Abstract

Water pricing is the key to maximize the economic and social benefits of the water transfer project. In this study, we propose the extended linear expenditure system-water price tolerance index (ELES-WPTI) model that combines the ELES model and the WPTI method for water pricing, Firstly, the ELES model is used to estimate the price elasticity of water demand and the basic demand for farmers of different income levels. Secondly, the WPTI method is used to simulate and analyze the affordability of farmers of different income levels for agricultural water under the dynamic change of water price standards. Finally, the ELES-WPTI model is applied to the Yinda-Jihuang (YJ) Project, China, to determine the appropriate agricultural water price. The results reveal that the farmers in the DH district have is slightly higher affordability for water price than that in HL District. As water consumption should account for less than 15% of the total production cost and 10% of the net income, the affordable water price is determined to be 237 $/hm² in the DH district and 205 $/hm² in the HL district, respectively.

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基于ELES-WPTI模型的银大集黄水利枢纽灌溉水价研究

水价是实现调水工程经济效益和社会效益最大化的关键。在本研究中，我们提出了将ELES模型和WPTI方法相结合的扩展线性支出系统水价容忍指数（ELES-WPTI）模型。首先，利用ELES模型来估计不同收入水平农民的用水需求和基本需求的价格弹性。其次，利用WPTI方法模拟分析了水价标准动态变化下不同收入水平农民对农业用水的承受能力。最后，将ELES-WPTI模型应用于银达吉黄（YJ）项目，确定了适宜的农业水价。结果表明，DH区农民的水价承受能力略高于HL区。由于用水量应不到总生产成本的15%和净收入的10%，DH区和HL区的可负担水价分别为237$/hm²和205$/hm³。

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来源期刊

Water Policy 环境科学-水资源

CiteScore

3.10

自引率

12.50%

发文量

审稿时长

6-12 weeks

期刊介绍： Water Policy will publish reviews, research papers and progress reports in, among others, the following areas: financial, diplomatic, organizational, legal, administrative and research; organized by country, region or river basin. Water Policy also publishes reviews of books and grey literature.