京津冀地区水-能源利用效率与资源压力核算
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TV213.4

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国家自然科学基金(51879010);广东省自然科学基金(2020A151501912);广东省农业科学院2021年度科技人才引进专项资金项目(R2021YJ-YB3009);广东省农业科学院青年导师制项目(R2020QD-053)


Calculation of energy-water utilization efficiency and resource pressure in Beijing-Tianjin-Hebei region
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    摘要:

    基于多层次投入产出法,核算了京津冀地区各部门的三层次体现水强度及体现能源强度,分析了京津冀地区水与能源的“源”与“汇”流通特征,构建了水-能源贸易间接消耗资源压力指数,对贸易引发的资源压力进行了定量化分析。结果表明,京津冀三地全行业平均体现水强度分别为69.90 m3/万元、68.51 m3/万元和103.13 m3/万元,体现能源强度分别为28.58 GJ/万元、22.84 GJ/万元和38.29 GJ/万元,资源利用效率天津最高、河北最低;北京和天津受限于资源禀赋条件,倾向于调入原产品和最终消费品,其经济和资源之间的脱钩发展得益于将资源密集型产品的生产转移至其他省份,河北则为京津地区资源安全使用提供了保障;体现水贸易对北京和天津各部门水资源压力的缓解作用显著强于河北,体现能源贸易对北京各部门能源压力的缓解作用显著强于天津和河北;体现水贸易对京津冀地区能源压力的影响显著低于体现能源贸易对水资源压力的影响,能源耗水在水-能源纽带关系中起到主导作用。

    Abstract:

    Based on the multi-scale input-output method, the three-scale embodied water intensity and embodied energy intensity of each sector in the Beijing-Tianjin-Hebei region were calculated, source-to-sink flow characteristics of embodied water and energy were analyzed, and the water-energy indirect consumption pressure indexes were constructed to quantitatively analyze the resource pressure caused by trade. The results show that the average embodied water intensities of the whole sectors in Beijing, Tianjin, and Hebei were 69. 90 m3/10 000 yuan, 68. 51 m3/10 000 yuan, and 103. 13 m3/10 000 yuan, respectively. The average embodied energy intensities of the whole sectors in Beijing, Tianjin, and Hebei were 28. 58 GJ/10 000 yuan, 22. 84 GJ/10 000 yuan, and 38. 29 GJ/10 000 yuan, respectively. Resource utilization efficiency was highest in Tianjin and lowest in Hebei. Limited by resource endowment conditions, Beijing and Tianjin tended to absorb raw products and final consumer products, and the decoupling development of their economy and resource benefited from the transfer of production of resource-intensive products to other provinces. Hebei provided a guarantee for the resource security in Beijing and Tianjin. The alleviating effect of embodied water trade on water pressure of each sector in Beijing and Tianjin was significantly stronger than that in Hebei, and the alleviating effect of embodied energy trade on energy pressure of each sector in Beijing was significantly stronger than that in Tianjin and Hebei. In the Beijing-Tianjin-Hebei region, the impact of embodied water trade on energy pressure was significantly lower than the impact of embodied energy trade on water pressure, and the water consumption of energy plays a leading role in the energy-water nexus.

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洪思扬,王红瑞,梁俊芬,等.京津冀地区水-能源利用效率与资源压力核算[J].水资源保护,2021,37(5):102-111.(HONG Siyang, WANG Hongrui, LIANG Junfen, et al. Calculation of energy-water utilization efficiency and resource pressure in Beijing-Tianjin-Hebei region[J]. Water Resources Protection,2021,37(5):102-111.(in Chinese))

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  • 收稿日期:2020-10-23
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  • 在线发布日期: 2021-11-12
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