庭院雨水集蓄利用工程的建设技术据估算，目前黄河中游地区约有４００多万人口钦水困难。造成人畜饮水困难的原因，一方面是降水少而集中，水资源贫乏；另一方面是水土流失严重，有限降水的利用率低。庭院雨水集蓄利用工程是在农户屋顶、庭院场地加以防渗处理，收集雨水在... It is estimated that there are about 4 million people in the middle reaches of the Yellow River who have difficulties in planting water. The causes of the difficulty of drinking water for both domestic and foreign animals are that precipitation is less concentrated but water resources are scarce; on the other hand, there is serious soil erosion and the utilization rate of limited precipitation is low. Garden rainwater collection and utilization project is to farmers in the roof, yard to be anti-seepage treatment, collecting rain in ...