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