河南省2006—2012年居民虚拟水消费计算与分析

Virtual Water Consumption Calculation and Analysis of Henan Province in 2006—2012

以虚拟水计算为基础,计算了2006—2012年河南省城乡居民在饮食方面的人均虚拟水消费量和年虚拟水消费量。结果显示,河南省城市人均虚拟水消费量远高于农村,这主要是由于收入差距造成的;农村虚拟水总量远高于城市,这是由于人口总数造成的。在此基础上,深入分析了河南省城市与农村各收入阶层的人均虚拟水消费量差异,计算了虚拟水消费多样性指数多年变化。结果显示,城市各收入阶层虚拟水消费量总体变化不大,农村各收入阶层虚拟水消费多样性指数呈下降趋势,城市与农村虚拟水消费量均随收入增长而增加,城市与农村虚拟水消费多样性指数均随收入增长而变大。因此,应从缩小城乡差距、改善消费模式和控制人口等方面做到减少虚拟水消费量。

In this paper, the virtual water calculation was based on the calculation of the 2006 - 2012 annual per capita consumption of virtual water and virtual water consumption in urban and rural residents of Henan Province in the diet. The results showed that the per capita consumption of virtual water was much higher than in rural Henan Province which was due to the income gap caused. The total amount of virtual water in rural areas was much higher than the city, which was caused due to the total population. On this basis, and in - depth analysis of the Henan cities and rural per capita virtual water consumption across all income classes, and according to calculate the virtual water consumption diversity index, it showed that the city each income class virtual water consumption changed little overall, all income groups in rural virtual water consumption decreased, urban and rural virtual water consumption volume grew with the income growth. Virtual water consumption in urban and rural diversity index with revenue growth was larger. The best way was to reduce the consumption of virtual water from narrowing the gap between urban and rural areas, improve consumption patterns and population control and so on.