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人们对发展引黄灌溉提出两个前提条件,就是“一不淤河,二不碱地”。近几年来由于在灌区实行了井渠结合,和背河洼地推广了淤灌种稻,土地碱化的问题反映不大,(当然不能掉以轻心,因为近几年气候偏旱,这是防次的有利条件)反映强烈的是泥沙淤积排水河道的问题。其数量大得惊人,豫鲁两省几个有名的排涝系统,天然文岩渠、金堤河马颊河、徒骇河、惠济河、贾鲁河……都发生严重淤积,总淤积量在两亿吨以上。因此对排水河道的淤积能否制止,已成为关系引黄灌溉命运的大事。
People put forward two preconditions for the development of irrigation to the Yellow River, namely, “one does not waste rivers and two no bases.” In recent years, the problem of alkalization of land has not been reflected due to the combination of well and channel in the irrigation area and the poplar irrigation and paddy cultivation in the backwater depression (of course, it can not be taken lightly because of the drought in recent years, which is a secondary prevention Favorable conditions) is strongly reflected in the issue of sediment deposition of drainage channels. Its number is staggering. Several well-known drainage systems in the two provinces of Henan and Shandong, natural Wenyan ditch, Jintihe Majiahe River, Tuhai River, Huiji River and Jialu River all have serious sedimentation, with a total deposition volume of 200 million Ton or more. Therefore, whether the siltation of the drainage channel can be stopped has become a major event concerning the fate of the Yellow River irrigation.