我国北方地区,广大贫下中农遵照毛主席关于“水利是农业的命脉”的教导,近几年大力开发地下水源,对夺取农业丰收发挥了巨大作用。随着机井的不断发展,有些地方,由于过度开采,地下水位大幅度下降,抽水扬程加大,增加了提水用电;有的机井抽空吊泵,不得不更换机泵,以致加重社队投资,影响农业生产。广大干部和群众在实践中逐步认识到,对地下水要有采有补,采补结合,才能更充分地发挥机井的作用。现在,许多地区已经能够人工补给地下水,即利用河 In northern China, the majority of poor and middle peasants, following Chairman Mao’s teachings on “Water conservancy is the lifeblood of agriculture,” have made great efforts to develop underground water sources in recent years and have played a huge role in seizing agricultural harvests. With the continuous development of the well, in some places due to over-exploitation, the groundwater level dropped drastically and pumping lift increased, increasing the pumping power; some pumping wells down the pump, had to change the pump, resulting in increased community investment , Affecting agricultural production. The majority of cadres and the masses have gradually realized in practice that it is necessary to give full play to the role of the jet well if there is a combination of groundwater and mining and complementing groundwater. Many areas are now being able to recharge groundwater manually, using the river