Dendrochronology

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Across
  1. 2. section of tree to analyze without cutting tree
  2. 3. protects the tree from exterior harm
  3. 4. United States Geologic Survey
  4. 7. portion of the tree that grows between sapwood and heartwood
  5. 8. determining the age by using growth rings
  6. 11. moves products of photosynthesis from leaves to roots for storge
  7. 13. Department of Conservation and Natural Resources
  8. 14. using multiple samples and sites and comparing sequences
  9. 16. Time of lighter portion of the ring
  10. 17. shows final year of growth
  11. 18. center of tree, often soft
  12. 19. Often found when there has been a fire
  13. 20. vascular tissue that moves water from roots to leaves
Down
  1. 1. Rings formed from a leaning tree
  2. 5. Time of darker portion of the ring
  3. 6. Ring made up of spring and summer growth
  4. 7. cross section of a tree
  5. 8. he science or technique of dating events, environmental change, and archaeological artifacts by using the characteristic patterns of annual growth rings in timber and tree trunks.
  6. 9. term for cutting the entire perimeter of tree, kills it
  7. 10. the tool for taking a core from tree
  8. 12. A key factor in ring growth for a season
  9. 15. Tree harvest where tree numbers are reduced and desirable trees are left