衡水市居民生活用水变化特征分析

Analysis on Change Characteristics of Residents’ Living Water Use in Hengshui City

通过对衡水市生活用水变化特征分析，为生活用水规划和节水规划提供科学依据。利用衡水市2001~2012年用水资料和社会统计资料，采用数理统计的方法，计算行业用水结构、生活用水变化规律及生活用水指标等。不同行业多年平均用水量为16．2906亿m3，生活用水量占总量的4．88％；农村居民生活用水多年平均值5263万m3，平均每年增长16万m3；城镇居民生活用水多年平均2693万m3，平均每年增长61万m3。生活用水基本上维持在一个相对稳定水平，主要是开展生活用水节水等措施。通过对衡水市城镇居民生活用水量指标分析，城镇居民生活用水指标为53．49L／（人·d），农村居民生活用水指标为49．02L／（人·d）。在人口不断增加，人们生活质量不断提高的情况下，通过开展节水措施和利用水价调节作用，使生活用水多年保持在一个相对稳定的水平。

Analyzing the change characteristics of living water use in Hengshui City provides scientific basis for living water use plan and water saving plan. Using water use data and social statistical data in 2001-2012 of Hengshui city, and adopting the method of mathematical statistics, industrial water use structure, living water use change rule and living water use index are calculated. The average water consumption of different industries for many years is 16.2906 billion ms, of which the amount of living water use accounts for 4.88% of the total; the average living water consumption of rural residents for many years is 5263 million m3, which increases 16 million ms annually; the average living water consumption of urban residents for many years is 2693 million m3, which in- creases 61 million ms annually. Living water use basically maintains at a relatively stable level, and the development of living water saving measures is important. Based on analysis of living wa- ter use index of urban residents in Hengshui city, indicator of urban residents＇ living water use is 53.49 L/（human.d）, and that of rural residents＇ is 49.02 L/（human.d）. With increasing population and improving life quality, through the development of water saving measures and the effect of water price adjustment, living water use can maintain at a relatively stable level for many years.