摘要:我国煤炭资源型地区众多，但其资源环境等可持续发展问题形势严峻，如何针对能源和水这两种重点资源进行协同管理是解决这些问题的关键之一。基于区域不同产业能-水耦合视角，采用投入产出分析对2002-2012年山西省不同产业的能-水足迹效率进行评价，并采用结构分解分析能-水耦合的影响因素，主要结论有：（1）研究期间，山西省各产业能-水足迹都呈上升趋势，能源足迹的增加主要表现为各产业间接消耗能源的增加，而水足迹的增加主要表现为各产业直接消耗水资源的增加。（2）不同行业能-水足迹效率差异很大，足迹较大的产业其足迹效率都较低。尽管研究期间各产业能-水足迹效率呈现上升趋势，但大部分产业能-水足迹效率仍处于较低水平。（3）从各产业能源足迹效率和水足迹效率的耦合情况来看，各产业能-水足迹效率耦合状况趋于优化，逐步由低水足迹效率和中等能源足迹效率（W_lE_m）为主转变为中等水足迹效率和中等能源足迹效率（W_mE_m）为主，但与发达地区相比，仍然具有一定的差距。（4）从能-水足迹效率影响因素来看，各产业技术水平的提高是导致能-水足迹效率提高的主要动力，经济规模的持续扩大是各产业能-水足迹上升的主要原因，部门间的联系和地区经济结构对能-水足迹效率的影响也逐步增加。这些发现从理论上揭示了资源利用强度和效率对产业能-水消耗的影响机制，从实践上对资源型地区节能节水具有重要指导意义。



Abstract:There are many coal resource-based areas in China, resource shortage, environment pollution and so on is the key problem of restricting its sustainable development. How to collaborative management of the two key resources of energy and water is one of the key to solve these problems. A large number of scholars have studied the synergetic management of energy and water resources from the perspective of energy-water correlation. However, due to different resource endowments and management policies in different regions, the demand of water and energy in energy and water resources sector is different, and the energy-water coupling relationship is very different in different regions. Especially for the special problem area of coal resource-based area, it still needs a further research how to deeply excavate the energy-water coupling relationship and influence mechanism of different industries in the area. Based on this, from the perspective of energy-water coupling of different industries in different regions, this paper used input-output analysis to evaluated the energy-water footprint efficiency of different industries in Shanxi Province from 2002 to 2012. At the same time, by using the structural decomposition model, this paper analyzed the influence factors of energy and water coupling. It can provide references for sustainable management of coal and water resources in coal resource-based areas. The main conclusions are as follows: (1) The energy-water footprint of all industries in Shanxi Province from 2002 to 2012 showed an upward trend. The increase in energy footprint was mainly reflected by the increase in indirect energy consumption of various industries, while the increase in water footprint was mainly represented by the increase in direct consumption of water resources in various industries. The energy-water footprint of different industries was obviously different. The industries with large energy footprints were metal smelting and rolling products, mining and service industries; the industries with large water footprints were agriculture, services, and mining. (2) In different industries, the energy-water footprint efficiency varies greatly. The industries with larger energy and water footprints had lower footprint efficiency. Although the energy-water footprint efficiency of various industries in Shanxi Province showed an upward trend from 2002 to 2012, the energy-water footprint efficiency of most industries was still at a low level. (3) From the perspective of the coupling of energy footprint efficiency and water footprint efficiency of various industries, the coupling status of energy-water footprint efficiency of various industries in Shanxi Province tended to optimize from 2002 to 2012. It gradually changed from low water footprint efficiency and medium energy footprint efficiency(W_lE_m) to medium water footprint efficiency and medium energy footprint efficiency(W_mE_m), but compared with developed regions also had the very big disparity. (4) From the perspective of the influencing factors of energy-water footprint efficiency, the improvement of the technological level of various industries was the main driving force for the improvement of energy-water footprint efficiency. The continuous expansion of the economic scale is the main reason for the increase of each industry's energy-water footprint. The impact of intersectoral linkages and regional economic structures on energy-water footprint efficiency was increasing.





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