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1959年12月中苏专家考察内蒙黄河后套灌区时,苏联专家哈德巴也夫根据灌区潜水在冬季冻结期水位剧烈下降的动态特征(如图1),对河套灌区土壤盐碱化问题提出了如下的看法:1、从11月中旬至翌年五月初,由于上部土壤层在冬季冻结,潜水蒸发减少,在这期间基本不参与土壤盐碱化过程。2、冻结期间,潜水由冻前的高水位(埋深一米左右),到翌年三月
In December 1959, when Chinese and Soviet experts inspected the Inner Mongolia Yellow River and set irrigation areas, the Soviet expert Hadebayev proposed the problem of soil salinization in Hetao Irrigation District according to the dynamic characteristics of the sharp decline of the water level during the freezing season in the irrigated area The following view: 1, from mid-November to early May the following year, as the upper soil layer frozen in winter, the evaporation of the submersible decreased, during which the basic does not participate in the process of soil salinization. 2, during the freeze, diving from the high water level before freezing (about a meter depth), to the following March