Soil stabilization is essential in different fields, such as the environment, to prevent wind erosion and dust. Microbial-induced carbonate precipitation (MICP) is a soil healing method in which bacteria with CaCO₃ precipitation among soil particles increase the soil erosion resistance against wind erosion. In this study, by culturing a bacterium species with the scientific name of “Sporosarcina pasteurii” in the laboratory and preparing the solution with three levels of urea and calcium chloride (concentrations of 0.1, 0.2, and 0.4 M) as a nutrient, the status of CaCO₃ precipitation was investigated. The erosion of the cemented samples was simulated at a speed of 10–20 km h⁻¹ at the height of 10 cm from the tunnel bottom using a wind tunnel apparatus. The results showed that the highest CaCO₃ precipitation occurred in treatments of 0.1 M calcium chloride with 0.2 M and 0.4 M urea. At both wind speeds, MICP treatments significantly reduced soil erosion as compared with the control samples. The FTIR test confirmed the CaCO₃ precipitations. Further, the study of CaCO₃ precipitation using XRD and SEM analysis showed that it is more in the form of vitriol crystals, binding together loose soil particles and increasing their resistance to the shear stress of wind.

在不同领域（例如环境）中，土壤稳定对于防止风蚀和灰尘至关重要。微生物诱导的碳酸盐沉淀（MICP）是一种土壤修复方法，其中土壤颗粒中具有CaCO ₃沉淀的细菌可增强土壤抗风蚀能力。在本研究中，通过在实验室中培养一种科学名称为“ Sporosarcina pasteurii ”的细菌，并制备以三种水平的尿素和氯化钙（浓度分别为0.1、0.2和0.4 M）作为营养液的溶液，研究了CaCO _3的沉淀。以10–20 km h ^-1的速度模拟胶结样品的侵蚀使用风洞设备在距隧道底部10厘米的高度处进行探测。结果表明，在0.1 M氯化钙，0.2 M和0.4 M尿素处理下，最高的CaCO ₃沉淀发生。在两种风速下，与对照样品相比，MICP处理均显着减少了土壤侵蚀。FTIR测试证实了CaCO _3的沉淀。此外，使用XRD和SEM分析对CaCO _3进行的沉淀研究表明，CaCO _3的沉淀形式更多为硫酸晶体，将松散的土壤颗粒结合在一起，并提高了其对风切变应力的抵抗力。