福建省近10年用水结构变化及驱动力分析

Analysis of Water Consumed Structure Change and Its Driving Forces Last 10 Years in Fujian Province

分析了1999-2008年福建省工、农业和生活用水等用水结构的变化及其驱动力因子。结果表明：福建省用水总量呈上升趋势,年均增加2.52×108m3;农业用水量及其所占比重逐渐减小,工业用水量及其所占比重递增,生活用水量增长缓慢,比重基本不变。用水结构的变化和全省产业结构变化相适应。耕地面积的减少和节水灌溉面积增加是农业用水减少的主要原因;工业产值的迅速增长和工业结构的调整共同促进了工业用水量的增加,工业用水重复利用率和万元工业增加值用水量水平的提高对工业用水具有负驱动作用;人口增长是生活用水逐年增加的主要驱动因子。

The paper analyzed the change of water consumed structure,including industrial,agricultural and domestic water consumption from 1999 to 2008 in Fujian Province.The driving forces for the change were also analyzed.Results indicated that the total water consumption presented a tendency of slight rise,with an annual increase of 252 million m3;agricultural water consumption and its proportion gradually decreased,industrial water consumption and its proportion obviously increased,domestic water consumption slowly grew.The change of water consumed structure was consistent with the change of industry structure.The reduction of arable areas and the increase of water-saving irrigated areas were the main reasons of agricultural water consumption reduced.Rapid growth of industrial output and adjustment of industrial structure contributed to the increase of industrial water consumption.The risen level of repeated utilization ratio of industrial water utilization and the industrial water demand of every increased ten thousand yuan played a negative driving role in industrial water consumption.Population growth was the main driving force of the increase of domestic water consumption.