粉煤灰在改良盐碱地土壤中的机理研究

A Research on the Mechanism of Fly Ash in Saline Soil Improvement

利用粉煤灰进行盐碱土改良试验,采用掩模层配比法,研究了不同配比下盐碱土与粉煤灰混合后理化性质的变化规律。结果表明,使用粉煤灰可降低土壤容重,提高土壤孔隙体积,减少土壤中的碱性物质含量,加快土壤排盐速度及改善土壤的化学性质。同时,分析了粉煤灰与土壤不同比例下木苗的最佳生长状况和生理指标。

The authors of this paper have conducted experiments in saline soil improvement with fly ash,using the mask layer ratio method,and studied the variation of physical and chemical properties of the soil under different ratios of saline soil to fly ash.The results show that the use of fly ash can reduce soil bulk density,increase soil pore volume,reduce the alkali content in the soil,speed up the soil salt drainage rate and improve soil chemical properties.The authors have also analyzed the optimal growth conditions and physiological indicators of seedlings in soil under different proportions of saline soil to fly ash.