Results and discussion
Intrinsic soil properties impact wind erosion within limits, but
indirectly impact erosion by influencing temporal or external soil
properties. We hypothesized that clay amendment would influence wind
erosion within limits for a dry and loose soil surface. However, clay
amendment may considerably affect crust crushing energy when generating
natural physical crusts. After an erodible soil surface is created by
tilling a crusted surface using a tillage simulator, erosion may be
influenced by temporal wind erosion factors such as random roughness,
aggregate GMD as well as aggregate crushing energy and density. A flow
diagram of the wind tunnel study in evaluating the effect of progressive
clay amendment on soil wind erosion in the inland Pacific Northwest is
shown in Figure 3.