DEQ (Section 1)

  1. Erosion is the process where soil particles are ______ or ______ and put in motion.
    Dislodged or detached
  2. Sedimentation is the process whereby detached particles are ______ elsewhere.
    Deposited
  3. Sediment is solid ______ or ______ particulate matter that has been removed from its site of origin by ______, ______ or ______ and deposited elsewhere.
    • Mineral or organic      
    • water, wind or gravity
  4. Accelerated erosion is a speeding up of erosion due to ______ activity.
    Human
  5. Major erosive forces are water and ______.
    Wind
  6. In some areas, more soil is lost from ______ erosion than from water erosion.
    Wind
  7. The effects of ______ erosion are usually more visible than ______ erosion.
    • Water
    • wind
  8. The three categories of overland erosion are:
    • Sheet - greatest soil loss
    • Rill
    • Gully
  9. ______ erosion is the removal of a uniform layer of soil from rainsplash and storm water runoff.
    Sheet
  10. The ______ of erosion defines the difference between rills and gullies.
    Depth
  11. The physical factors affecting erosion are:
    • Climate
    • Vegetative cover
    • Soils
    • Slope
  12. Erosion and sedimentation may cause:
    • Loss of fertile topsoil
    • Structural damage to roads, buildings or bridges
    • Deposition, resulting in reduction of fish spawning areas, reduced channel or storm drain capacity, and increased costs to maintain navigation 
    • Turbidity
    • Pollutant loading
  13. The climatic factors that strongly influence erosion and runoff are ______ amount, ______, and ______.
    • Rainfall
    • intensity
    • frequency
  14. Soil properties influencing erodibility include:
    • Texture
    • Structure
    • Cohesion
    • Natural drainage class
  15. Texture refers to the ______ or ______ of ______ of soil particles in a soil.
    • Size
    • combination
    • sizes
  16. Structure refers to the degree to which individual soil particles ______ to each other.
    Adhere
  17. Slope ______, ______, and ______ affect erodibility.
    • Steepness
    • length
    • roughness
  18. Sediment deposition occurs when soil-laden wind or water ______ enough to allow the soil particles to settle out.
    Slows
  19. The ______, ______, and ______ of the transported particles influence the rate at which they settle out.
    • Size
    • shape
    • density
  20. Smaller, lighter particles such as ______ - ______particles are easily transported and are ______ to settle out.
    • Clay-sized
    • slow/difficult
  21. The five principles of erosion and sedimentation control are:
    • Plan the development to fit the natural site conditions
    • Expose the minimum practicle area for the shortest possible time
    • Apply erosion control prevention practices as first line of defense 
    • Apply sediment control practices to prevent off-site sedimentation
    • Implement a thorough inspection, maintenance, and follow-up program
  22. The most effective way to prevent erosion is keep the soil covered with ______.
    Vegetation
  23. It is much more effective to prevent ______ than to control the ______ generated from erosion.
    • Erosion
    • sediment
Author
Ebusinger1298
ID
320262
Card Set
DEQ (Section 1)
Description
DEQ Study Guide
Updated