磁化—去电子水对盐渍化土壤水盐运移特征影响

磁化与去电子等活化水处理技术在农业灌溉领域的应用受到人们广泛的关注,为了阐明磁化—去电子水入渗对土壤水盐运移的影响机制,利用自来水、去电子水、磁化水(0.4 T)、以及磁化—去电子水开展一维垂直入渗试验,研究了磁化—去电子活化水对土壤水盐运移特征及盐分淋洗效率的影响。结果表明:与对照相比,磁化—去电子活化处理能够有效促进土壤水分入渗,增加土壤含水率,降低土壤含盐量,提高灌溉水盐分淋洗效率,并且磁化—去电子水在入渗能力、土壤含水率、土壤含盐量、盐分淋洗效率较磁化或去电子方法有不同程度的提高,与去电子水相比,磁化—去电子水累积入渗量增加了28.0%,到达入渗终点用时减少了25.7%,15 cm深度土层的土壤含水率增加了7.9%,整体土壤脱盐率增加了13.9%;与磁化水相比,磁化—去电子水累积入渗量增加了6.7%,到达入渗终点用时减少了12.2%,15 cm深度土层的土壤含水率增加了3.2%,整体土壤脱盐率增加了4.7%。磁化—去电子水对土壤盐分淋洗有显著促进作用,并且比磁化水或去电子水的促进作用更明显,有利于为作物生长创造良好的水盐环境,为合理利用磁化-去电子水提供了参考。

Effect of Magnetization-De-Electronic Integrated Activation Water on Water-Salt Transport Characteristics of Salinized Soil

The application of activated water treatment technologies such as magnetization and de-electronic in agricultural irrigation has been widely concerned. In order to clarify the influence mechanism of magnetization-de-electronic water infiltration on soil water and salt transport, one-dimensional vertical infiltration test was conducted with tap water, magnetized water (0.4 T), de-electronic water and magnetization-de-electronic integral activation water, and the effect of magnetization-de-electronic integrated activation water on soil water and salt transport characteristics and salt leaching efficiency were studied. The results showed that compared with the control, the magnetization-de-electronic integrated activation treatment could effectively promote soil moisture infiltration, increase soil water content, reduce soil salinity, and improve the salt leaching efficiency of irrigation water. Moreover, the magnetization-de-electronic integrated activation water had different degrees of improvement in the infiltration capacity, soil water content, soil salinity, and salt leaching efficiency compared with the single magnetization or de-electronic method. Compared with de-electronic water, in the treatment of magnetization-de-electronic integrated activation water, the cumulative infiltration of increased by 28.0%, the time to reach the end of infiltration decreased by 25.7%, the soil moisture content of the 15 cm depth layer increased by 7.9%, and the overall soil desalination rate increased by 13.9%. Compared with magnetized water, in the treatment of magnetization-de-electronic integrated activation water, the cumulative infiltration increased by 6.7%, the time to reach the end of infiltration decreased by 12.2%, the soil moisture content of the 15 cm depth soil layer increased by 3.2%, and the overall soil desalination rate increased by 4.7%. The study results showed that magnetization-de-electronic integral activation water had a significant promotion effect on soil salt leaching, and its promotion effect was more obvious than that of magnetized water or de-electronic water, which was beneficial to create a good water and salt environment for crop growth, and provided a reference for the rational utilization of magnetization-de-electronic integral activation water.