What is soil temperature?

Question: How would you describe soil temperature: as a physical property, chemical, or biological? It doesn’t really seem to fit any of those categories nicely, though I’d probably call it a physical property. --Submitted by Thomas Villars, USDA-NRCS Answer: Soil temperature is the measure of how hot or cold the soil is. If you want … Continue reading What is soil temperature?

Soil: Largest reactor on the planet?

Q: How can soils filter or purify water, such as for drinking water purposes? There are just so many chemicals and bacteria in the soil that you would expect the opposite. Soil: The world's largest chemical reactor (click to enlarge image). A: If we put some soil in a glass column and pour “dirty” water … Continue reading Soil: Largest reactor on the planet?