Soil stabilization for dunes fixation using microbially induced calcium carbonate precipitation

Climate change and desertification caused increases in sandstorms sand movements due to the erosive force of wind. Wind erosion is a phenomenon depending on climatic components surface roughness arid semi-arid regions responsible for health economic loss. The controlled by increasing resistance soils using chemical, physical biological methods. Due high cost environmental issues conventional techniques, use alternative green stabilization methods inevitable. Therefore, present study, effect microbially induced calcium carbonate precipitation (MICP) fixation situ dunes north-east Iran was assessed. cementation solution 0.1–0.5 M sprayed evaluated after 7, 15, 30 days. MICP treated samples were exposed wind tunnel variation threshold detachment velocity (TDV) as well other macro/micro evaluation such unconfined compressive strength, seed germination, scanning electron microscope (SEM), energy-dispersive X-ray spectroscope (EDX). results suggested critical impact both geotechnical geoenvironmental parameters selection soil stabilizers dunes. It can be stated that bio-crust formation with 0.3 showed 123 kPa no potential days under speed m/s. germination H. persicum demonstrated contemporaneous treatment native plants positively affect TDV.