双循环视角下消费型城市流入水-碳测度及来源解析——以北京为例  

Measurement and sources analysis of water-carbon inflows to consumption-based cities under the dual circulation perspective:A case study of Beijing

作　　者：李艳梅 李瑞芳 付丽媛 魏玥 LI Yanmei;LI Ruifang;FU Liyuan;WEI Yue(School of Economics and Management,Beijing University of Technology,Beijing 100124,China)

机构地区：[1]北京工业大学经济与管理学院,北京100124

出　　处：《地理研究》2024年第11期2870-2886,共17页Geographical Research

基　　金：北京市社会科学基金重点项目(21JJA001)。

摘　　要：厘清双循环视角下消费型城市虚拟水和隐含碳的空间来源,对消费型城市携手流出区实现共同绿色转型具有重要意义。本文选取北京为研究案例,基于嵌套型多区域投入产出模型,从双循环视角测度了通过国内外贸易流入虚拟水和隐含碳的空间来源;再结合水压力和碳压力指数,进一步解析了流入虚拟水和隐含碳来源地的水-碳压力情况。研究结果显示:①北京通过消费外部的水密集型产品或碳密集型产品来缓解本地水-碳压力,流入虚拟水和隐含碳在消费端水资源消耗和碳排放总量中的占比分别为78.08%和84.96%。②国内贸易是北京流入水密集型产品和碳密集型产品的主要来源,国内流入虚拟水和隐含碳在流入虚拟水和隐含碳总量中的占比分别为65.34%和88.12%。③北京国内外流入虚拟水和隐含碳的空间来源具有较高集中度,主要受到贸易量空间分布、贸易结构、水消耗和碳排放系数的影响。④无论国内还是国际,主要流入来源地大部分都属于水-碳压力较高的省区市或国家。基于上述结论,本文提出了消费型城市重视节水减碳治理并加强区域合作的政策建议。In order to promote cooperation of green development between consumption-based cities and other regions which offer goods,it is significant to clarify the spatial sources of virtual water and embodied carbon in the context of dual circulation.This paper chose Beijing as a case study.Based on a nested multi-region input-output model,the spatial characteristics of Beijing's inflow of virtual water and embodied carbon through domestic and international trade were measured under the dual circulation perspective.In addition,the water-carbon stress of these regions and countries which offer outflow of virtual water and embodied carbon to Beijing was analyzed by the water stress and carbon stress indices.The following results were obtained.(1)Beijing relieved local water-carbon pressures by consuming external waterintensive or carbon-intensive products.Virtual water inflows accounted for 78.08%of the total water consumption from a consumption-based perspective.Similarly,embodied carbon inflows represented 84.96%of the total carbon emissions when viewed from the consumption side.The top five sectors in terms of inflows are those in which virtual water and embodied carbon inflows are concentrated,both within and outside Beijing.(2)Domestic trade was the main source of Beijing's inflow of water-intensive and carbon-intensive products.Domestic inflows of virtual water and embodied carbon accounted for 65.34%and 88.12%of the total inflows of virtual water and embodied carbon,respectively.(3)Beijing had a high concentration of spatial sources from virtual water and embodied carbon inflows through domestic and international trade.It was mainly affected by the spatial distribution of trade flows,trade structure,and water consumption and carbon emissions coefficient.The top ten provinces,autonomous regions,municipalities or countries in terms of virtual water and embodied carbon flows to Beijing accounted for more than 60%of the total domestic and international amount,respectively.(4)Most of the major sources of inflows,whether

关 键 词：消费型城市 虚拟水 隐含碳 多区域投入产出 水-碳压力指数 

分 类 号：TV213.4[水利工程—水文学及水资源] X22[环境科学与工程—环境科学] F127[经济管理—世界经济]