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本文探讨了田间低矿化水灌溉的土壤盐碱化生态过程，结 果表明：无论在水平方向还是垂直方向上，随着灌溉水矿化度的增加，带入土体中的ＮａＨＣＯ３增多，从而引起土壤ｐＨ，全盐，ＨＣＯ３－，ＥＳＰ及ＳＡＲ逐渐升高．因灌溉水是以ＮａＨＣＯ３ 为其主要成分，除Ｎａ＋、ＨＣＯ３－增多外，其余Ｃａ２＋、Ｍｇ２＋、Ｃｌ－、ＳＯ４ ２－总量变化不大．小麦采用畦灌的灌水量比玉米的埯灌大得多，带入的盐碱物质相应 增多，造成盐碱化的速度快于玉米田．在田间条件下，盐化和碱化的安全灌溉水矿化度分别 为２．５ｇ／Ｌ和１．５ｇ／Ｌ．
In this paper, we discussed the salinization process of soil salinization in the field with low mineralized water irrigation. The results show that with the increase of salinity of irrigation water, the amount of NaHCO3 introduced into the soil increases, both in the horizontal direction and the vertical direction, Soil pH, total salt, HCO3-, ESP and SAR gradually increased. Due to irrigation water is NaHCO3 as its main component, in addition to Na +, HCO3- increased, the rest of Ca2 +, Mg2 +, Cl-, SO4 2- total little change. Irrigation of wheat with shrub irrigation is much larger than that of corn, with a corresponding increase in salt-alkaline substances, resulting in faster rates of salinization than in corn fields. Salinity and alkalization of safe irrigation water salinity were 2.5 g / L and 1.5 g / L, respectively, under field conditions.