Figure captions
Figure 1. Location of soil sample sites across the inland Pacific
Northwest (iPNW).
Figure 2. The typical force (N) versus displacement (mm) curves during
crushing of aggregates with 4% and 8% clay amendment for four soil
types.
Figure 3. 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.
Figure 4. Soil loss simulated by the RWEQ model as a function of clay
amendment at 12 m s-1 freestream wind speed within a
dry and loose soil surface for four soil types found across inland
Pacific Northwest.
Figure 5. Crust crushing energy (a) and their rates (b) as a function of
clay amendment for four soil types found across inland Pacific Northwest
(iPNW).
Figure 6. Soil water content (a), random roughness (b), and
aggregate density (c) as a function of crust crushing energy for four
soil types found across inland Pacific Northwest (iPNW). The p value
>0.1 indicated the relationship was not statistically
significant (10% level).
Figure 7. Aggregate GMD as a function of crust crushing energy (a) when
crust break down by tillage, and soil loss as a function of aggregate
GMD (b) for four soil types found across inland Pacific Northwest
(iPNW).
Figure 8. Soil loss as a function of clay amendment for four soil types
found across inland Pacific Northwest (iPNW).
Figure 9. The abrasion coefficient of aggregates (a) and
vertical abrasion flux (b) simulated by SWEEP as a function of aggregate
crushing energy for the four soil types found across inland Pacific
Northwest (iPNW).
Figure 10. The abrasion coefficient of aggregates (a) and vertical
abrasion flux (b) simulated by SWEEP as a function of clay amendment for
the four soil types found across inland Pacific Northwest (iPNW).