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河套平原由大厚度第四系冲湖积地层组成,地下水水平径流滞缓,以垂向水交替为主。地下水D1、8O3、H同位素特征的分析表明,地下水开发利用和引黄河水灌溉对河套平原中东部地下水循环交替的影响主要是:在没有开采井的地域,灌溉水入渗补给对地下水的影响范围和深度十分有限;在开采井周围,灌溉入渗补给的影响深度、范围和强度明显增加,影响深度取决于主要开采层位,影响范围和强度取决于开采规模。
The Hetao plain consists of a large thickness of Quaternary sediments and lacustrine sediments. The runoff of groundwater is stagnant, mainly vertical water alternations. The analysis of the characteristics of D1, O3, H isotopes of groundwater shows that the influence of groundwater exploitation and utilization and water diversion from Yellow River to the groundwater circulation in the middle and eastern Hetao Plain is mainly due to the influence of irrigation water infiltration on the groundwater And the depth is very limited. In the vicinity of the production wells, the infiltration depth, range and intensity of irrigation infiltration obviously increase. The depth of influence depends on the main mining horizon and the scope and intensity of the influence depend on the mining scale.