| 引用本文: | 周 博,申晓晶,陈 猷,等.基于改进单区域投入产出的宁夏段
黄河水资源经济效益评价[J].灌溉排水学报,2025,44(12):148-156. |
| ZHOU Bo,SHEN Xiaojing,CHEN You,et al.基于改进单区域投入产出的宁夏段
黄河水资源经济效益评价[J].灌溉排水学报,2025,44(12):148-156. |
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| 摘要: |
| 【目的】科学评估宁夏水资源利用效率，全面贯彻落实“四水四定”用水理念。【方法】选取耗水量为研究指标，构建2007、2012、2017年宁夏水资源-宏观经济投入产出表，引入省内生产比重对角矩阵，改进单区域耗水效率评估方法，对比分析不同阶段各部门耗水效率、耗水经济效益及虚拟水转移情况。【结果】不同行业耗水系数差异显著，农业的直接耗水系数和完全耗水系数远高于其他行业；建筑业、石油加工业和服务业的直接产出系数和完全产出系数始终位居前3；农业不仅是虚拟水的核心净输出部门，也是隐形水资源转移的关键载体，而食品和烟草加工业、纺织业、建筑业及服务业则为主要的虚拟水净输入部门。【结论】引入省内生产比重对角矩阵系统纠正了单区域水资源投入产出分析中完全耗水系数和完全产出系数的高估偏差。研究结果可为宁夏产业节水策略提供科学依据。 |
| 关键词: 投入产出分析；省内生产对角矩阵；耗水经济效益；虚拟水 |
| DOI：10.13522/j.cnki.ggps.2025213 |
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| Evaluating economic benefits of water resources in the Ningxia Section of the Yellow River using the single-region and input-output model |
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ZHOU Bo, SHEN Xiaojing, CHEN You, ZHANG Jing, JI Jinyu, WU Run, SHANG Fenjie
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School of Civil and Hydraulic Engineering, Ningxia University, Yinchuan 750021, China
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| Abstract: |
| 【Objective】The arid and semi-arid regions in Northwestern China face acute water resource scarcity, which is further exacerbated by increased agricultural water consumption and the need to balance economic development and national water governance requirements. The purpose of this paper is to evaluate water resource use efficiency in Ningxia to improve implementation of the national strategy of ‘defining city, land, population, and industry based on water resources’. 【Method】Water consumption used by different sectors was selected as the evaluation indicators. Input-output tables linking water resources to macroeconomic activities were constructed for Ningxia section of the Yellow River in 2007, 2012 and 2017. A provincial production share diagonal matrix was used to optimize the traditional single-region water efficiency evaluation method, which could accurately assess water use efficiency, water-related economic benefits, and virtual water transfers in different sectors. Water use efficiency in different sectors in the three years was compared to identify their temporal changes. 【Result】Notable differences in water use coefficients existed between different sectors. ① Agriculture had the highest direct and total water use coefficients. ② Construction, petroleum processing and service were the three sectors that had the highest direct and total output coefficients. ③ Agriculture was the net exporter of virtual water and the key carrier of hidden water transfers, while the food and tobacco processing, textile, construction and service sectors were the main net importers of virtual water. 【Conclusion】Introducing a provincial production share diagonal matrix can effectively reduce the overestimated total water use and output coefficients by the single-region input-output model. Our findings provide a guideline for improving industry-specific water-saving strategies in Ningxia and other regions in Northwestern China. |
| Key words: input-output analysis; diagonal matrix of intra-regional production shares; economic efficiency of water consumption; virtual water |
