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研究报告

Research on the water footprint quantification of the hotel service industry based on the hybrid LCA model: A case of Zhangye

摘要：传统水足迹测算方法主要针对农牧产品，对服务产品核算的研究不足.本文基于混合生命周期评估（H-LCA）模型清单分析方法，参考ISO 14046标准，以典型干旱区-张掖市的酒店服务业为例，对张掖市酒店服务业的水足迹进行了定量测算与特征分析.结果表明：张掖市酒店服务业水足迹每年平均为547 m³·万元^-1；酒店服务业水足迹主要来源于间接消耗，占水足迹总量的86%，而直接消耗占仅占14%；间接消耗中最大的部门为农林牧渔产品和服务部门，其次是金属矿采选产品与冶炼加工品部门及建筑部门.以此为依据，2016年张掖市酒店服务业水足迹输出量达到6244万m³，占张掖市水足迹输出总量的10%左右.酒店服务业水足迹量化研究应该成为张掖市今后节水型城市建设及虚拟水战略实施中不可忽视的重要内容.

Abstract：The traditional calculation method of water footprint is mainly for agricultural and pastoral products, leading to its lack of accounting and research of service products. According to the hybrid LCA model based on inventory analysis method and ISO 14046 standards, the hotel service industry in Zhangye City of typical arid region was taken as an example to perform quantitative measurement and feature analysis on its water footprint. Results show that the water footprint of Zhangye hotel service industry is 547×10^-4 m³·yuan^-1 in average per year. the source is mainly from the indirect consumption which occupies 86% of the total water footprint while the direct consumption accounts for only 14%. the most consumed department among the indirect consumption are the product and service sectors of agriculture, forestry, animal husbandry and fishery, followed by the sector of dressing metal mineral products and metallurgical processing products along with the construction department. Water footprint output of Zhangye hotel service industry has reached 62 million 440 thousand cubic metres, accounting for about 10% of the total water footprint output of Zhangye City. As a result, the quantitative research on the water footprint of hotel service industry should become an unnegligible content with great importance in the construction of water-saving city and the implementation of virtual water strategy by Zhangye City in the future.