基于投入产出模型的黑龙江省水资源利用效率分析

Analysis of Water Resources Utilization Efficiency in Heilongjiang Province Based on Input-Output Model

以黑龙江省2002年和2007年各部门用水数据为基础,构建了水资源投入产出模型,对国民经济各部门的耗水率、用水效益、用水关联性及虚拟水的消耗量进行了估算。研究认为,农业占黑龙江省总用水量比例最高,交通运输业占总用水量比例最低;各部门用水的关联性普遍呈现下降趋势;黑龙江省从2002年到2007年皆属虚拟水净流出省,其中农业是虚拟水输出最多的部门。研究成果可为提高水资源的经济价值提供理论基础和数据依据。

An input-output model ot water resources was estabhshed based on the water consumption data ot t-lexlonKllang t＇rovince in 2002 and 2007, and it was used to estimate the water consumption efficiency, water consumption benefit, water consump- tion correlation, and consumption of virtual water of each sector of national economy. The results showed that agriculture sector had the highest proportion in total water consumption of Heilongjiang Province whereas transportation sector had the lowest. Water consumption correlation between each sector presented decreasing trend from 2002 to 2007. The virtual water was expor- ted in Heilongjiang Province from 2002 to 2007, and agriculture sector had the largest amount of exported virtual water. The re- sults can provide theoretical foundation and data support to improve the economic value of water resources.