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采用大田小区试验的方法，以燃煤烟气脱硫废弃物和糠醛渣为碱化土壤的改良剂，以不同改良剂配比组合为处理，研究了碱化土壤改良后种植乔木红柳的效果。试验共设 3 个处理：T1 处理（燃煤烟气脱硫废弃物（3.0 kg/坑）+糠醛渣（1.0 kg/坑）），T2 处理（燃煤烟气脱硫废弃物（2.0 kg/坑）+糠醛渣（2.0 kg /坑））和 T3 处理（燃煤烟气脱硫废弃物（1.0 kg /坑）+糠醛渣（3.0 kg /坑）），结果表明，随着种植年限的延长，不同处理下土壤的 p H、全盐量和碱化度（ESP）均有不同程度的降低。其中，T3 处理对土壤的 p H、全盐量影响较大，种植第二年 0~40cm 土层的 p H、全盐量分别从 8.52 和 3.08‰降低到 7.85 和 1.56‰；而 T1 处理对土壤的 ESP 影响最为显著，0~40cm 和 40~80cm 土壤 ESP 降幅最大达到 30.42%和 22.75%。通过分析乔木红柳的生长指标，T1 处理下最有利于乔木红柳的生长，其成活率和保存率分别达到了 91.66%和 83.33%，较对照提高了37.48%和66.66%；而胸径和1 a生枝条分别为 2.86cm和 20.8cm，较对照提高了34.91%和 30.00%。结论：燃煤烟气脱硫废弃物和糠醛渣配合施用能有效降低碱化土壤的 p H、全盐量和 ESP，从而有利于乔木红柳的生长和发育，其中 T1 处理为改良剂最优配比组合。
The method of field plot test was used to study the effect of planting Salix psammophila on improved alkalized soils with coal flue gas desulphurization wastes and furfural residue as alkalinizing soil amendments. There were 3 treatments: T1 treatment (coal-fired FGD waste (3.0 kg / pit) + furfural residue (1.0 kg / pit)), T2 treatment + Furfural residue (2.0 kg / pit)) and T3 treatment (coal-fired flue gas desulfurization waste (1.0 kg / pit) + furfural residue (3.0 kg / pit)). The results showed that with the extension of planting time, Soil pH, total salinity and alkalinity (ESP) decreased to some extent. Among them, T3 treatment had a great effect on p H and total salt content of soil, and p H and total salt content of 0 ~ 40 cm soil layer decreased from 8.52 and 3.08 ‰ to 7.85 and 1.56 ‰ respectively in the second year of planting. The soil ESP had the most significant effect. The soil ESP decreased by 40.42% and 22.75% at 0 ~ 40cm and 40 ~ 80cm, respectively. By analyzing the growth index of Tamarix ramosissima, T1 treatment is most conducive to the growth of Tamarix ramosissima, the survival rate and the preservation rate reached 91.66% and 83.33%, respectively, increased by 37.48% and 66.66% compared with the control; Branches were 2.86cm and 20.8cm, respectively, increased by 34.91% and 30.00% compared with the control. Conclusion: The combination of coal-fired flue gas desulfurization waste and furfural residue can effectively reduce the p H, total salt and ESP of alkalized soil, which is beneficial to the growth and development of Tamarix ramosissima. The optimal ratio of T1 treatment as modifier combination.