中国行业间水-能源-食物投入产出关联特征  

The characteristics of the water-energy-food input-output nexus among China’s national industries

作　　者：项潇智 张雅娴 XIANG Xiaozhi;ZHANG Yaxian(Institute of Geography and Resources Science,Sichuan Normal University,Chengdu 610101,China;Institute of Qinghai-Tibetan Plateau,Southwest Minzu University,Chengdu 610225,China)

机构地区：[1]四川师范大学地理与资源科学学院,成都610101 [2]西南民族大学青藏高原研究院,成都610225

出　　处：《资源科学》2022年第3期595-607,共13页Resources Science

基　　金：西南民族大学中央高校基本科研业务费专项资金项目(2021NQNCZ25);四川师范大学自然科学类科研基金项目(ky20200901)。

摘　　要：国民经济行业通过投入产出关系形成复杂的行业网络,理解其中的水-能源-食物关联特征是实现国家战略资源协同管理的重要认知基础。本文基于2018年中国投入产出数据,采用社会网络分析和可计算一般均衡模型方法,按照“行业网络构建—关联特征识别—仿真模型模拟”的思路,从网络结构和个体属性角度对行业间水-能源-食物投入产出关联特征进行实证分析。结果表明:①水利管理业与外围行业具有广泛的投入产出关联且是行业间水、能源、食物产品流通的重要媒介,该行业及水的生产和供应业产出的增加会带动中国第二、第三产业用水量的高增长;②能源生产链上游的煤炭开采和洗选、石油天然气开采行业是全局中介行业,行业产量的增加能够显著扩大所有行业的商品产出规模,而生产链下游的电热生产供应、炼油和核燃料加工等行业则位居全行业关联网络的核心位置,所供应的二次能源产品是多类生产活动的基本投入;③种植业和餐饮业是水-能源-食物行业子网中的主导行业,且与子网外行业具有广泛而紧密的直接、间接联系,是中国水、能源和食物协同管理中需要重点关注的行业节点。本文研究成果可以为中国战略资源行业的管理提供决策支持,为水-能源-食物关联研究提供方法和案例参考。National industries form a complex industrial network by means of their input-output relationships,and comprehending water-energy-food nexus characteristics of the network is an important cognitive basis of the coordinated management of these strategic resources.Based on China’s input-output data in 2018 and using social network analysis and the computable general equilibrium model,we analyzed the water-energy-food input-output nexus from both the network and attribute perspectives.The research framework of this study can be divided into industrial network construction,nexus characteristics identification,and model simulation.The results show that:(1)Water conservancy has extensive linkages with other industries and it is a vital medium for the circulation of water,energy,and food.The output increase of water conservancy and water production and supply industries can contribute to the significant increase of water use in secondary and tertiary industries.(2)Coal mining and washing industry and oil and gas exploitation industry located in the upstream of the energy production chain are the overall intermediary of industrial network,and the increase of their outputs can significantly scale up the production of all commodities.The downstream electric power and heat production and supply industry,and oil refining and nuclear fuel processing industry are in the core position of the network,and the secondary energy sources supplied by them become the basic input of numerous industries.(3)Planting industry and catering industry are leading industries in water-energy-food industrial subnet.They also have widespread and close connections with industries outside the subnet,which makes them more noteworthy in the coordinated management of water,energy,and food.The results of this study can provide decision support for the management of China’s strategic resources industries and a reference of analytical methods and cases for water-energy-food nexus research.

关 键 词：水-能源-食物关联 投入产出 行业网络 社会网络分析 可计算一般均衡模型 

分 类 号：TV213.4[水利工程—水文学及水资源] F426.2[经济管理—产业经济]