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农业一直是北京市用水大户,近几年用水量虽呈不断下降趋势,但到2005年农业用水比例仍高达38%,而且农业用水的89%来自地下水。为缓解我市水资源紧缺的压
Agriculture has always been a big water user in Beijing. Although water consumption has been declining in recent years, the proportion of agricultural water still reaches as high as 38% by 2005, and 89% of agricultural water comes from groundwater. To ease the city’s water shortage pressure