Arborists' study guide vocab chap.4

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Across
  1. 7. fully hydrated to a normal state of distension
  2. 8. term to describe a compound that is poisonous to plants
  3. 9. method of minimizing evaporation and runoff by applying small amounts of water through small emitters
  4. 12. substance applied to the foliage of plants to reduce water loss (transpiration)
  5. 15. water remaining in the soil after gravitational water has drained and before the permanent wilting point has been reached
  6. 17. use of plant materials(usually native plants) and practices that minimize landscaping water use. Term for environmentally friendly form of landscaping in dry climates. The term was copyrighted by the Denver (Colorado) Water Department in 1981.
  7. 18. water loss by evaporation from the soil surface and transpiration by plants
Down
  1. 1. practice of minimizing irrigation needs through the use of drought-tolerant plants and watering only when necessary
  2. 2. calculation, based on precipitation and environmental factors, that establishes the minimum irrigation needed to maintain plant health
  3. 3. severe drying out. Dehydration.
  4. 4. (1)downward entry of water into the soil. (2)entry of fine particles into drainage or aeration systems; can lead to system clogging and failure.(3)downward entry of materials from one soil or fill layer to another, as when a gravel road surface mixes with underlying soil.
  5. 5. speed at which water penetrates the soil
  6. 6. group of plants in a landscape with similar water requirements
  7. 10. movement of water through the soil
  8. 11. amount or percentage of salt in the soil
  9. 13. instrument used to measure soil moisture
  10. 14. speed at which water moves through the soil
  11. 16. ability of a soil to hold moisture