摘要：The use of bio-mulches to stabilize dust has gained worldwide attention during the last five decades.We report herein on a study of the application of 20 new types of bio-mulches as stabilizing agents.To understand the effect of new bio-mulches on dust stabilization, several tests have been applied forstrength, structural stability and wind erosion. Fourier Transforms Infrared and Scanning ElectronMicroscopy have been applied on untreated and treated soil samples. Bio-mulch modified mechanismshave been analysed. Wind erosion and aggregate stability test results clearly indicate that certain biomulch specimens were useful in controlling dust in relatively arid and semiarid areas. The ScanningElectron Microscopy images show that when bio-mulches were applied to sandy soil, some voids inthe soil were filled, while other parts stayed on the surface of soil aggregates. The molecular structureof polyelectrolyte groups reacted chemically with positive ions of the clay grain and createdphysicochemical bonds between molecules and soil aggregates with ionic, hydrogen or VanderWaals bonds. Untreated samples had no bonds between molecules and soil aggregate, and thestrength and erosion resistance were weak.
