Annual Growth Bands in Hymenaea courbaril Metadata

Metadata describes a digital item, providing (if known) such information as creator, publisher, contents, size, relationship to other resources, and more. Metadata may also contain "preservation" components that help us to maintain the integrity of digital files over time.


  • Main Title Annual Growth Bands in Hymenaea courbaril


  • Author: Westbrook, J A
    Creator Type: Personal
  • Author: Guilderson, T P
    Creator Type: Personal
  • Author: Colinvaux, P A
    Creator Type: Personal


  • Sponsor: United States. Department of Energy.
    Contributor Type: Organization


  • Name: Lawrence Livermore National Laboratory
    Place of Publication: Livermore, California
    Additional Info: Lawrence Livermore National Laboratory (LLNL), Livermore, CA


  • Creation: 2004-02-09


  • English


  • Content Description: One significant source of annual temperature and precipitation data arises from the regular annual secondary growth rings of trees. Several tropical tree species are observed to form regular growth bands that may or may not form annually. Such growth was observed in one stem disk of the tropical legume Hymenaea courbaril near the area of David, Panama. In comparison to annual reference {Delta}{sup 14}C values from wood and air, the {Delta}{sup 14}C values from the secondary growth rings formed by H. courbaril were determined to be annual in nature in this one stem disk specimen. During this study, H. courbaril was also observed to translocate recently produced photosynthate into older growth rings as sapwood is converted to heartwood. This process alters the overall {Delta}{sup 14}C values of these transitional growth rings as cellulose with a higher {Delta}{sup 14}C content is translocated into growth rings with a relatively lower {Delta}{sup 14}C content. Once the annual nature of these growth rings is established, further stable isotope analyses on H. courbaril material in other studies may help to complete gaps in the understanding of short and of long term global climate patterns.
  • Physical Description: PDF-file: 15 pages; size: 0.2 Mbytes


  • Keyword: Air
  • Keyword: Climates
  • Keyword: Panama
  • Keyword: Trees
  • Keyword: Cellulose
  • Keyword: Wood
  • Keyword: Stable Isotopes
  • STI Subject Categories: 54 Environmental Sciences
  • Keyword: Precipitation


  • Journal Name: International Association of Wood Anatomists Bulletin, vol. 27, no. 2, May 1, 2006, pp. 193-197; Journal Volume: 27; Journal Issue: 2


  • Name: Office of Scientific & Technical Information Technical Reports
    Code: OSTI


  • Name: UNT Libraries Government Documents Department
    Code: UNTGD

Resource Type

  • Article


  • Text


  • Report No.: UCRL-JRNL-202325
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 902362
  • Archival Resource Key: ark:/67531/metadc888046