Abrasion is an important but complicated and fundamental process in soil wind erosion. To determine the relationship between the abrasion mass (AM) of soil clod and sand transport rate (q), and to investigate the influences of clod characteristics including moisture content, geometry, and soil texture on AM and on clod abrasion resistance, we conducted soil clod abrasion experiments in a wind tunnel. The soils types were aeolian sandy soil, loess soil, chestnut soil, and brown calcic soil, respectively. The abraders were the same soil as used for making the target clods. We found that moisture content obviously influenced AM, and the AM variation at relatively high friction velocity (u∗ = 0.44, 0.52, and 0.60 m∙s⁻¹) showed different trends from those at lower u∗ (0.31 and 0.37 m∙s⁻¹). For dry clods of each soil type, AM of the hexagonal prism clod was greater than that of cylindrical clod, but for moist clods, AM of the two geometries differed among soil types. We developed an AM prediction equation which mainly accounts for the mean particle size (d) and u∗. Using the abrasion coefficient (AC) as the abrasion resistance index, dry clods of the loess soil showed the strongest resistance, followed by clods of an aeolian sandy soil, chestnut soil, and brown calcic soil. However, AC could not quantitatively predict the resistance of moist clods.

磨损是土壤风蚀的重要但复杂而基本的过程。为了确定土壤凝块的磨蚀质量（AM）与砂子输送速率（q）之间的关系，并研究包括水分，几何形状和土壤质地在内的土壤凝块特性对AM和土壤凝块耐磨性的影响，在风洞中进行土块磨损实验。土壤类型分别为风沙质土壤，黄土土壤，栗子土壤和棕色钙质土壤。研磨机与用于制造目标土块的土壤相同。我们发现，水分含量显着影响AM和AM在相对较高的摩擦速度变化（û∗ = 0.44、0.52和0.60 m∙s ^-1的趋势与低u ∗（0.31和0.37 m∙s ^-1）的趋势不同。对于每种土壤类型的干燥土块，六棱柱形土块的AM大于圆柱形土块的AM，但是对于潮湿土块，两种几何结构的AM在土壤类型之间有所不同。我们开发了一个AM预测方程，该方程主要考虑了平均粒径（d）和u ∗。使用耐磨系数（AC）作为耐磨指数，黄土的干土块表现出最强的抵抗力，其次是风沙土，栗子土和棕色钙土。然而，AC无法定量预测潮湿的血块的抵抗力。