井灌井排是改良低洼易涝盐碱的一种措施。它利用水泵从机井内抽吸地下水,以灌溉洗盐,同时又可降低地下水位。在同一机井内通过抽水灌溉不仅起了灌溉作用,也产生降低地下水位的作用,使机井起到灌溉、排水的双重作用,并且这两种作用是紧密结合的,所以叫做井灌井排。这种措施可以降低田间排水沟渠的除涝标准,并避免因灌溉不当,而引起抬高地下水位产生次生盐碱化的危害。 Well-well well row is a measure to improve the low-lying waterlogging salinity. It uses a pump to pump groundwater from the shaft to irrigate the salt water and at the same time reduce the water table. In the same shaft by pumping irrigation not only played an irrigation role, but also to reduce the effect of groundwater level, make the shaft irrigation, drainage dual role, and these two roles are closely integrated, it is called well irrigation well row. Such measures can reduce the standard of waterlogging drainage in field drainage ditches and avoid the harm caused by the secondary salinization of raised groundwater level due to improper irrigation.