洪思扬, 王红瑞, 程涛. 广东省水与能源利用效率与部门使用特征分析[J]. 北京师范大学学报(自然科学版), 2022, 58(1): 107-115. DOI: 10.12202/j.0476-0301.2021177
引用本文: 洪思扬, 王红瑞, 程涛. 广东省水与能源利用效率与部门使用特征分析[J]. 北京师范大学学报(自然科学版), 2022, 58(1): 107-115. DOI: 10.12202/j.0476-0301.2021177
HONG Siyang, WANG Hongrui, CHENG Tao. Energy and water utilization efficiency in different sectors in Guangdong[J]. Journal of Beijing Normal University(Natural Science), 2022, 58(1): 107-115. DOI: 10.12202/j.0476-0301.2021177
Citation: HONG Siyang, WANG Hongrui, CHENG Tao. Energy and water utilization efficiency in different sectors in Guangdong[J]. Journal of Beijing Normal University(Natural Science), 2022, 58(1): 107-115. DOI: 10.12202/j.0476-0301.2021177

广东省水与能源利用效率与部门使用特征分析

Energy and water utilization efficiency in different sectors in Guangdong

  • 摘要: 基于多尺度投入产出法,核算了广东省经济系统中各部门的水-能源资源要素强度,在此基础上,量化了广东省与中国其他地理区域间的资源流通情况,分析了广东省各部门的资源最终使用情况,以期精确量化资源利用效率,发掘资源节约的重点关注部门.结果表明:农业的水资源强度(619.25 m3·(万元)−1)和电力、燃气及水的生产供应业的能源强度(120.64 GJ·(万元)−1)显著高于其他部门,部门平均用水效率和能耗效率均高于中国平均水平,低于世界平均水平;水与能源的相互利用效率高于中国及世界平均水平.区域贸易中,由中国其他地区净流入广东省的水资源量为81.45亿m3,占广东省直接用水总量的1/4;净流入能源量为5.53×109 GJ,占直接能源消耗量的66%,地区发达的经济和众多的人口对资源形成较强的集聚效应.建筑业、电气机械及器材制造业等部门具备较大的水与能源最终使用量,是广东省水与能源节约及其双向资源调控中的重点关注部门.

     

    Abstract: Multi-scale input-output method was used in this study to calculate water-energy resource intensity of various sectors in the economic system of Guangdong Province.Resource circulation between Guangdong and other regions in China was quantified, and the final use of resources in various sectors in Guangdong was analyzed, to accurately quantify efficiency of resource utilization and to discover key sectors for resource conservation.Water intensity of agriculture (619.25 m3·(10 000 yuan)−1), energy intensity of power, gas and water production and supply (120.64 GJ·(10 000 yuan)−1) were found to be significantly higher than other sectors.The average water use efficiency and energy consumption efficiency of all sectors in Guangdong were higher than the national average but lower than world average.The mutual utilization efficiency of water and energy was higher both than the national average in China and the world average.Net inflow of water resources to Guangdong Province was 8.145 billion m3, accounting for one quarter of the total.The net inflow of energy was 5.53×109 GJ, accounting for 66% of direct energy consumption.Developed economy and large population were found to have a strong agglomeration effect on resources.Construction, electrical machinery and equipment manufacturing had heavy demand on water and energy, and these were key sectors in the conservation and bidirectional resource regulation of water and energy in Guangdong.

     

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