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《Journal of Glaciology and Geocryology》 2008-06
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The Analysis of Water Consumption and Water Shortage in Zhangye Municipality

WANG Yong1,XIAO Hong-lang1,WANG Rui-fang2,LU Ming-feng1(1.Laboratory of Watershed Hydrology and Ecology,CAREERI,CAS,Lanzhou Gansu 730000,China;2.Zoucheng Environmental Monition and Protection Station,Jining Shandong 273500,China)  
In this paper,an extended input-output model for considering specific questions about the relationship between economic structure and economic activity is presented,which opens up a path for the study not only of economic production but also of the effects of production and consumption on the physical resources.Based on the framework,the direct and indirect water consumption coefficients,the water consumption multiplier and the matrix of water relations among different industries are calculated.By analyzing the indicators drawn from the input-output model of water consumptions of different industries,a deeper understanding on the social construction of water shortage is obtained.The results show that despite its water shortage,Zhangye Municipality possesses an economic structure of strong water consumption.Agriculture consumes great quantities of water directly,while industrial and service departments consume lots of water indirectly.The latter is unnoticed because of the low indicators of direct water consumption.If the indirect consumptions are taken into account,the total volume of water consumption in Zhangye Municipality is nearly two times of the available water supply.Water consumption characteristics of different industries and the input-output relations among different industries decide that the economic production in Zhangye Municipality has a great demand of water resources,which can not be repaid by trade from other water-rich areas.However,its trade structure actually created has considerable amount water resources to flow to the outside areas every year along with the commodity in the virtual water form,and caused the water resources in Zhangye Municipality to be scarce in a society scale finally.
【Fund】: 中国科学院西部行动计划“黑河流域水循环与水资源管理研究”(KZCX2-XB2-04-03);; 科技部115科技支撑项目“沙区水土资源优化配置与高效利用技术研究”(2006BAD26B02)资助
【CateGory Index】: F205
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