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盐碱地是地球陆地上分布广泛的一种土壤类型,土壤盐渍化是困扰人类的五大土壤问题之一。在耕地面积减少、人口持续增长的巨大压力下,盐碱地改良和开发利用日益引起人们的普遍关注。利用工业废渣改良盐碱地具有良好的经济效益和生态效益,目前可用作盐碱土改良剂的工业废渣有脱硫石膏、粉煤灰、糠醛渣等。鉴于此,就脱硫石膏、粉煤灰、糠醛渣3种废弃物改良盐碱化土壤的研究进展予以综述,并针对存在的问题提出了建议。
Saline-alkali soil is a widely distributed type of soil on earth. Soil salinization is one of the five major soil problems plaguing humans. Under the tremendous pressure of arable land reduction and sustained population growth, the improvement and development and utilization of saline-alkali land are increasingly drawing people’s attention. The use of industrial waste to improve saline-alkali has good economic and ecological benefits, the current can be used as a saline-alkali soil improver industrial waste gypsum, fly ash, furfural residue. In view of this, the research progress on the improvement of salinized soils with FGD gypsum, fly ash and furfural residue was summarized, and some suggestions were put forward for the existing problems.