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机构地区:[1]河北农业大学城乡建设学院,河北保定071001
出 处:《河北农业大学学报》2015年第4期121-124,129,共5页Journal of Hebei Agricultural University
摘 要:近年来随着社会经济的迅猛发展,河北省用水结构变化规律也在逐年发生变化。本研究利用河北省1988-2012年用水量资料,分析了农业、工业和生活用水量的变化规律。分析结果表明:河北省总用水量呈下降趋势,年均降低0.59亿m3;农业用水量所占比重逐年降低,工业用水量、生活用水量及其所占比重均逐年增长。耕地面积连年的下降和节水灌溉面积的增加是农业用水量持续减少的重要原因;工业用水重复利用率增加、万元工业产值用水量的减少对提高工业用水效率具有积极作用;人口增长是生活用水连年增加的重要因素。In recent years,with the rapid development of social economy,the water structure in Hebei Province is changed year by year.Using the water consumption data from 1988to2012,the change rules of water consumption in agricultural,industrial and domestic sectors were analysed.Results indicated that total water consumption presented a tendency of slight decline,with an annual increasing of 59 million m3,of which agricultural water proportion gradually decreased,industrial water proportion and domestic water proportion grew.The reduction of arable areas and the increasing of water-saving irrigated areas were the main reasons of agricultural water consumption reduction.The risen level of repeated utilization ratio of industrial water utilization and the industrial water demand of every increased ten thousand yuan played a positive role in improving the efficiency of industrial water.Population growth was the main factor of the increasing of domestic water consumption.
分 类 号:TV21[水利工程—水文学及水资源]
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