沧州市用水结构与变化趋势分析

通过对沧州市用水结构和用水量变化趋势分析,为水资源规划与合理利用水资源提供科学依据。采用沧州市2001-2013年用水量资料,采用统计法和趋势法分别对用水结构和用水量变化趋势进行分析。沧州市不同用水行业用水量结构为：农业用水占总用水量的67.9%,工业用水占12.6%,生活用水占8.7%,林牧渔业用水占8.3%,城市公共用水占1.5%,生态用水占1.0%。各用水行业变化趋势为：农业用水量总体呈下降趋势,平均每年减少0.1127亿m^3。工业用水维持在一个相对稳定水平,但年际变化较大。居民生活用水呈增加趋势。城镇公共用水量基本维持在一个较稳定的水平,年际变化幅度不大。林牧渔畜用水量年际变化呈下降趋势,平均每年下降0.0402亿m^3。生态环境用水量呈递增趋势,增加幅度较大,平均每年增加0.0224亿m^3。行业用水量的变化,与行业发展及行业结构调整关系密切。

Analysis and Calculation of Water Utilization Structure and Change Trend of Cangzhou City

Through the analysis of the structure of water consumption in Cangzhou city and water change trend, for the wa-ter resources planning and rational utilization of water resources and provide scientific basis for. Cangzhou city water con-sumption by 2001-2013 data, the uses of water and water use variation trend were analyzed using statistical method and the trend method. Cangzhou city water industry water use for different proportion：agricultural water accounted for 67.9%of the total amount of industrial water, living water accounted for 12.6%, accounted for 8.7% of the forest ,animal husbandry and fishery water accounts for 8.3%of the total, city public water station, 1.5%, ecological water accounts for 1%of the to-tal. The change trends of water industry： water is agriculture overall downward trend, the average annual decrease of 11.27 million cubic meters. Industrial water maintained at a relatively stable level, but large inter annual changes. Residents liv-ing water showed a trend of increase. The urban public water use basically maintained at a relatively stable level ,the inter-annual variation amplitude. Forest and fishery and livestock livestock water interannual variation of a downward trend, the average annual decline of 4.02 million cubic meters. Ecological environment water use increased, increased greatly, the av-erage annual increase of 2.24 million cubic meters. The change of water use for industry, and industry development and in-dustry structure adjustment in close.