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工业盐是融雪剂的主要成分,然而施用融雪剂后导致的环境问题已经引起了世界各国的关注。采用盆栽试验研究了施用0.1%、0.3%和0.5%浓度工业盐,生态净化剂,以及0.5%工业盐配施生态净化剂后,黑麦草的生长情况和土壤的pH值、电导率和交换性钠离子含量(Na+)。结果表明,随着施用工业盐浓度的提高,黑麦草的株高和生物产量逐渐降低,而施用生态净化剂可缓解工业盐对黑麦草生长的抑制作用。与施用0.5%浓度工业盐相比,0.5%工业盐配施生态净化剂后,黑麦草地上部、根系和总干重分别增加了63.4%、152.2%和73.8%。另外,土壤pH值、电导率和交换性Na+含量均在施用工业盐后升高,且随着工业盐浓度的增加而增加,在配施生态净化剂后则其降低。可见,工业盐配施生态净化剂,可降低工业盐对植株生长的抑制作用,缓解土壤盐碱化,降低施用融雪剂的环境风险。
Industrial salt is the main component of deicing salt, however, the environmental problems caused by the application of deicing salt have attracted the attention of all countries in the world. The pot experiment was conducted to study the growth of ryegrass and the pH value, conductivity and exchangeability of soil after applying 0.1%, 0.3% and 0.5% industrial salt, ecological purifying agent and 0.5% industrial salt combined with ecological purifying agent Sodium ion content (Na +). The results showed that the plant height and biomass of ryegrass decreased gradually with the application of industrial salt concentration. However, the application of ecological cleaning agent could alleviate the inhibitory effect of industrial salt on the growth of ryegrass. Compared with the application of 0.5% industrial salt, the top, root and total dry weight of ryegrass increased by 63.4%, 152.2% and 73.8% respectively after 0.5% industrial salt was applied with ecological cleaning agent. In addition, soil pH, conductivity and exchangeable Na + content increased after the application of industrial salt, and increased with the increase of industrial salt concentration, but decreased after the application of ecological purifying agent. It can be seen that industrial salt combined with ecological purifying agent can reduce the inhibitory effect of industrial salt on plant growth, ease soil salinization and reduce the environmental risk of applying deicing salt.