Losses of soil biodiversity, stability, and fertility are primary factors causing degradation in drylands; therefore, finding a sustainable conservation practice is a critical issue for reversing desertification in these areas. By inoculation of two filamentous cyanobacteria, i.e., Nostoc punctiforme and Microcoleus vaginatus, on infertile desert sand, this study examined the component, structure, permeability, and strength of the created biocrusts. Moreover, wind erodibility of the biocrusts was tested by a wind tunnel, equipped with a sand particle counter (SPC). With having higher amounts of polysaccharide and Chl-a contents after 21 days of cultivation, the M. vaginatus-formed biocrust showed comparatively higher values of nutrients and strength and lower values of permeability and erodibility. Concerning wind erosion of the sand samples, both biocrusts reduced surface erosion of the sand several thousand times, in conditions without saltating particles. Nevertheless, in the presence of saltating particles, the erosion resistance of the treated samples decreased significantly.

土壤生物多样性，稳定性和肥力的丧失是造成旱地退化的主要因素。因此，寻找可持续的保护实践是扭转这些地区荒漠化的关键问题。通过在不育的沙漠沙土上接种两种丝状蓝细菌，即点状诺氏菌和阴道微孢子菌，本研究检查了所形成生物结壳的成分，结构，渗透性和强度。此外，通过配备了沙粒计数器（SPC）的风洞测试了生物外壳的风蚀性。在培养21天后，由于含有较高的多糖和Chl-a含量，因此阴道分枝杆菌形成的生物结皮的养分和强度值较高，而渗透性和可蚀性值较低。关于砂样的风蚀，在没有盐分颗粒的条件下，两种生物结壳都可将砂的表面侵蚀减少数千倍。然而，在存在盐分颗粒的情况下，处理后的样品的耐蚀性显着降低。