Figure 9: Examples of Mollisols (grassland soils) formed from loess. Both soils have mean annual precipitation of 450 mm. The Ustoll (a) has an ustic soil moisture regime and the Xeroll (b ...

Loess smoothing is a curve-fitting technique based on local regression (Cleveland 1993). To fit a loess curve to the mining data, follow these steps: Choose Curves:Loess to display the loess fit ...

These variations impart physical and chemical patterns on loess landscapes that affect soil erosion, slope stability, water-holding capacity, and other important properties. Examples from modern ...

Discover the history and ecology of Iowa's Loess Hills. Discover the history and ecology of Iowa's Loess Hills. Road Trip Iowa is available to stream on pbs.org and the free PBS App, available on ...