1. Warnell School of Forest Resources
Soil Management
Bryan McElvany
Research Coordinator
Warnell School of Forest Resources
Patrick Davies

2. Soil Management
Limitations to some sort of land use are generally due to a combination of three main factors.
Soil Chemical Characteristics – chemical types, nutrient supply, pH, and others.
Soil Physical Characteristics – soil texture, soil structure, soil density, and others.
Site Factors – slope, water table, location, and others.

3. Soil Erosion

4. Soil Erosion
Erosion is the wearing away of material by wind, water, ice, or other geologic agents.
Three main types of erosion.
Sheet erosion – the removal of a uniform thin layer of soil.
Rill erosion – numerous and randomly occurring small channels are formed.
Gully erosion – removal of soil from a narrow area to considerable depths where water accumulates.

5. Soil Erosion

6. Soil Erosion by Water

7. Soil Erosion by Wind

8. Soil and Water

9. Soil Drainage
Soil drainage is affected by soil physical properties including soil texture and structure.
Drainage is also affected by depth to water table.

10. Soil Drainage Class
Refers to the frequency and duration of periods of saturation in the soil.
Excessively drained
Somewhat excessively drained
Well drained
Moderately well drained
Somewhat poorly drained
Poorly drained
Very poorly drained

11. Hydric Soils and Wetlands
Wetland is defined as an area with wetland hydrology, hydrophytic vegetation, and hydric soils. (must have all 3)
A hydric soil is one that formed under periods of saturation long enough during the growing season to develop anaerobic conditions. Without oxygen, iron does not rust. This leads to gray colors. That gray color is one way to define a hydric soil.

12. The End
Thanks