Dust and wind erosion are significant environmental problems that cause economic, social, agricultural, and transportation damages every year. Therefore, controlling and managing this problem is crucial. This study aimed to investigate the effectiveness of chemical (polyvinyl alcohol) and biological (fungi) based mulches in controlling wind erosion and soil stabilization. Soil samples were collected from a wind erosion and dust generating area in Ilam province. After performing physical and chemical tests on the samples, the soil weighed approximately 3 kg was poured into metal trays with dimensions of 3 x 30 x 30 cm. Different formulations were sprayed on the tray at the rate of 2 liters per square meter. For the fungi mulch, the steps were similar to the polymer mulch, but the storage conditions of the trays were the same at 25 degrees Celsius. After drying the samples after one month, wind tunnel tests, penetration force, impact resistance, aggrigate stability, and the thickness of the formed crust were measured. After comparing the results of various tests, including the amount of soil loss, penetration force, and impact resistance on the treatments, in the end, treatment F20G1 has the highest penetration force (0.93 kg/cm2) and the highest impact resistance (2.26 cm). , very low soil loss rate (3 grams) and very low dust concentration (1.20 kg/m3) was chosen as the best treatment to compare with chemical polymer treatment. For the polymer based on polyvinyl alcohol, after various tests on the formulations, in the end, the F8PVA1 formulation was selected due to the highest penetration force (2.30 kg/cm2), soil stability (97.13%), and impact resistance (0.45). cm) and the least waste of soil (2 g), were selected as the best formulation of PVA1 polymer. The comparison of these two foundations showed that the use of fungi mulch cannot increase the penetration force and impact resistance. In order to choose the appropriate mulch for field operations, other tests such as penetration rate and environmental issues should be considered.
