Abrasion caused by blown sand is an important process for compacted soils in grasslands. The abrasion rate is affected by a combination of the blown sand intensity and the properties of the underlying soil, but there is a paucity of relevant studies of the simultaneous effects of these factors, especially quantitative ones. Our wind tunnel simulation experiments showed that the abrasion rate of compacted soil increased rapidly with increasing transport rate of the abrasive particles and with increasing soil texture index (δ = (sand% + silt%)/[clay% + organic matter% + CaCO%]), and decreased significantly with increasing soil compaction. Accordingly, we developed an abrasion rate prediction model that accounted for the transport rate of windblown particles (abraders) and the physicochemical properties of the compacted soil. The effects of abrader properties (grain size and basic density), abrader availability, and a limited upwind supply of the abraders on the abrasion rate of compacted soils were also addressed. We developed a comprehensive abrasion-rate equation that accounted for both particle size and the basic density of the abraders.

中文翻译：

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风沙和土壤性质对压实土磨耗率的影响


风沙磨损是草原土壤板结的一个重要过程。磨损率受风沙强度和下层土壤性质共同影响，但对这些因素同时影响的相关研究，尤其是定量研究还很少。风洞模拟实验表明，压实土的磨损率随着磨粒输送速率的增加和土壤质地指数的增加而迅速增加（δ=（砂%+粉砂%）/[粘土%+有机质%+CaCO% ]），并且随着土壤压实度的增加而显着降低。因此，我们开发了一种磨损率预测模型，该模型考虑了风吹颗粒（磨损剂）的传输率和压实土壤的物理化学特性。还讨论了研磨剂特性（粒度和基本密度）、研磨剂可用性以及研磨剂有限的逆风供应对压实土壤研磨率的影响。我们开发了一个综合的磨损率方程，该方程考虑了磨损剂的颗粒尺寸和基本密度。