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This article reviews research findings on the application of petroleum-based mulches as an effective method for stabilizing shifting sands in Iran’s arid regions. These mulches form a surface layer that prevents wind erosion, conserves soil moisture, and promotes vegetation establishment. The paper highlights the benefits, challenges, and lessons learned from past sand dune stabilization projects using this technique.

This report, part of the 1973 FAO/UNDP Seminar, explores the distribution, properties, and stabilization efforts of sandy soils and sand dunes in Iran. It covers soil classifications, protective measures, and R&D projects such as petroleum mulching, mechanical windbreaks, and plantation of resilient species. Since 1959, Iran has made significant efforts to combat desertification and stabilize moving sand dunes in regions like Ahvaz, Sabzevar, and Qazvin.
Furthermore, in an official FAO report to the Government of Iran in 1971, the use of petroleum mulch was recommended, provided that the mulch layer can retain moisture and remain stable until full seed germination and seedling establishment.

This paper provides a comprehensive review of mulches used to control wind erosion. The study indicates that crop residues, chemical soil stabilizers, and livestock manure can effectively prevent wind erosion. To be effective, mulches must withstand wind speeds of 38 m/s. Vegetative mulches like wheat straw and prairie hay, when properly anchored to the soil surface, can significantly reduce erosion. Chemical stabilizers such as asphalt and latex emulsions are also effective when applied at sufficient volumes (minimum 3,785 L/ha). Additionally, feedlot manure proves to be a cost-effective mulch for erosion control. However, the high costs of some materials, particularly petroleum-based products, limit their widespread use.