Abstract
dc:description.abstractA dendrochronological technique was developed. It relies upon developing relative annual ring-width indices, and identifying unusually high yearly agreement in two or more samples. These agreements in the tree growth ring indices are called key years. Statistical procedures are developed for evaluating goodness of fit among sets of tree-ring samples. A study was conducted in Surry County, Virginia which tested methods of analyzing key-year patterns over a wide area. Cross-dating of trees utilizing key-year patterns from living trees and old building timbers was successfully accomplished in Montgomery County, Virginia. Key-year pattern data from both counties were used in a study of the correlation of key-year patterns with the Palmer Drought Index, to the occurrence of forest insect outbreaks, and to forest fires. The results showed a correlation in each case.
Degree
thesis:*- Name thesis:degree_name
- Master of Science
- Level thesis:degree_level
- masters
- Discipline thesis:degree_discipline
- Entomology
- Department dc:contributor.department
- Entomology
- Grantor dc:publisher
- Virginia Tech
- Year dc:date.issued
- 1979
Author and committee
dc:creator, dc:contributor.*- Author dc:creator
-
- Ferguson, James Montgomery
- Chair dc:contributor.committeechair
-
- Heikkenen, Herman John
- Committee members dc:contributor.committeemember
-
- Giles, Robert H. Jr.
- Pienkowski, Robert L.
Rights
dc:rights- Statement dc:rights
-
- In Copyright
- Licence dc:rights.uri
Identifiers
dc:identifier.*- Dc Identifier Other
- etd-03242009-040930
- OAI identifier oai:identifier
- oai:vtechworks.lib.vt.edu:10919/41786