交口抽渭灌区是我省关中平原东部的一个大型电力抽水灌区,灌溉临潼、渭南、蒲城、富平、大荔五县(市)农田126万亩,是我省粮、棉、油主要产地之一。自1965年和1970年分期建成受益以来,对促进灌区农业的发展和改善人民生活发挥了显著的作用。但是,由于过去对抽水灌区排水的必要性认识不足,虽然在修建一、二期灌溉工程的同时,曾修建了一部分排水骨干工程,而没有全部按原设计建成完整的排水系统,达不到设计标准,加之管理不善,使已成的排水工程也没有充分发挥效益,因此,在开灌七、八年后,每年地下水位上 The intersection of Wei and Irrigation District is a large-scale electricity pumping irrigation area in the eastern part of the Guanzhong plain. It irrigates 126 million mu of farmland of Lintong, Weinan, Pucheng, Fuping and Dali. It is the main producing area of ​​grain, cotton and oil in our province one. Since the establishment of benefits in phases in 1965 and 1970, it has played a significant role in promoting the development of agriculture in irrigation districts and improving people’s lives. However, due to the lack of understanding of the need for drainage in pumping areas in the past, some drainage main works were completed at the same time as the construction of the first and second irrigation works. However, all of the drainage systems were not constructed according to the original design and could not meet the design requirements Standards, coupled with poor management, has become a drainage project did not give full play to benefits, therefore, seven or eight years after the open irrigation, the annual water table