Abstract:
Wind erosion is an environmental issue worldwide, also the main reason causing soil degradation in the arid and semi-arid areas. Soil crusts are transient soil-surface layers with dense structure and thickness ranging from several millimeters to a few centimeters, which can resist wind erosion at a certain extent. Based on a brief summarization of soil crust types, this review highlights the influences of soil crust cover, thickness, and material compositions on wind erosion, and discusses the roles of soil crusts in mitigating wind erosion. Two further research perspectives are also proposed. The review paper may provide theoretical supports for developing effective practices against wind erosion in the arid and semi-arid areas.