PHS 215 Exam Review

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Across
  1. 2. A pH of 9.4 would be considered this
  2. 4. Hydric soils tend to be this color
  3. 6. Positive ion
  4. 7. Where does a wetland’s water come from and go?
  5. 10. When water gets too heavy and falls from the sky
  6. 11. The soil zone wetted by groundwater
  7. 15. Water flowing over a surface to the lowest point
  8. 18. How long is the wetland inundated?
  9. 19. The type of agent that will take electrons
  10. 21. Type of irrigation that requires specific soil types and field slopes, as well as a nearby water source
  11. 22. The zone of saturation above an impervious layer
  12. 23. A wetland not connected to a flowing water source
  13. 25. Soil __________ is important to aeration and considers tillage, pore sizes, and oxygenation by organisms.
  14. 28. Islands of __________ can form in dry soils due to plants trapping soil particles
  15. 30. Test to see if a site is suitable for a septic system
  16. 31. Term used to describe soils that lack oxygen
  17. 33. How fast water would be lost to the atmosphere, given local climatic variables and perfect soil moisture
  18. 34. Type of irrigation that is very expensive and needs individual plants to be most efficient
  19. 36. An area covered by water, either seasonally or permanently
  20. 37. Measure of water use in the field that takes into account evaporation, runoff, storage, and other non-plant uses of irrigation
  21. 38. The major driver of worldwide wetland loss
Down
  1. 1. Negative ion
  2. 2. The type of respiration that is much more efficient
  3. 3. Term that combines water lost to the atmosphere from both surfaces and plants
  4. 5. A term that means the salt concentration
  5. 8. The smallest soil particles
  6. 9. Region of the Middle East where agriculture was invented
  7. 12. A pH of 3.7 would be considered this
  8. 13. Removing water from the soil
  9. 14. When plants close their __________, it can cause higher leaf temperatures.
  10. 16. A measure of how well ventilated the soil is
  11. 17. Plants can’t get oxygen into their roots in soils that are __________.
  12. 20. An important Chesapeake Bay palustrine wetland
  13. 24. The type of soils that have detrimental levels of sodium ions
  14. 26. Adding water to the soil
  15. 27. pH is a measurement of the number of ___________ ions in a solution
  16. 29. Higher organic content or higher temperatures will likely lead to more __________ in the soil.
  17. 32. Deep groundwater
  18. 35. Pipes in the soil to facilitate drainage of agricultural fields