在较大的灌区,尽管灌水技术很好,也难免有大量的水渗漏到土壤深层,变为地下水。把这部分渗漏水量开发利用起来,既可以弥补水源的不足,还可以防止灌区地下水位升高和土壤盐渍化。现在有些地方已经这样做了,但是大家经验还不多,有许多理论问题和技术问题还没有结论,下面是刘学濚同志对这一问题的意见,提出来与读者们讨论。 In larger irrigation areas, despite the good irrigation technology, it is inevitable that a large amount of water leaks into the soil and becomes groundwater. The development and utilization of this part of the leakage of water together, both to make up for the lack of water, but also to prevent irrigation water table elevation and soil salinization. Nowadays some places have already done so. However, we have not had much experience yet. There are still many theoretical and technical problems that have yet to be concluded. The following are opinions of Comrade Liu Xueyuan on this issue and are put forward to discuss with the readers.