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) has a ...

From the lava plains of the Alvord Desert to the fertile alluvium of the Willamette Valley, Oregon’s secret wealth is lying all around us. It’s an ingredient forged from stars, fire and ice and, ...

Soils that formed on Earth’s surface thousands of years ago and that are now deeply buried features of vanished landscapes have been found to be rich in carbon, adding a new dimension to our planet’s ...

Rapid erosion due to human activity, such as grazing livestock and farming, has stripped the Alps of almost all the soil formed since the retreat of the glaciers. This soil developed over millennia as ...

A study on 'canopy soils' on old trees in Costa Rica shows they are important habitats and carbon stores that cannot easily be replaced. In certain trees, soils can form along branches and can support ...

This unit is an introduction to the biology, mineralogy, chemistry and physics of soils, including how soils form and evolve, methods of soil classification, the global distribution of soil types, the ...

Shale Hills in central Pennsylvania is already a busy area in Penn State’s managed forest lands, but now a five-year $4.2 million National Science Foundation Grant will make it even busier as ...

You can learn a lot about your soil by simply running it through your fingers. Healthy soil is the key to growing a beautiful and thriving garden. Building and nourishing the soil begins with getting ...

In certain trees, soils can form along branches and can support varied plant and animal life. However, what conditions these ‘canopy soils’ form in, and what kind of biodiversity they support, has ...