• Login
    Search 
    •   Home
    • Journals and Magazines
    • Tree-Ring Research
    • Tree-Ring Bulletin, Volume 48 (1988)
    • Search
    •   Home
    • Journals and Magazines
    • Tree-Ring Research
    • Tree-Ring Bulletin, Volume 48 (1988)
    • Search
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Browse

    All of UA Campus RepositoryCommunitiesTitleAuthorsIssue DateSubmit DateSubjectsPublisherJournalThis CommunityTitleAuthorsIssue DateSubmit DateSubjectsPublisherJournal

    My Account

    LoginRegister

    Filter by Category

    JournalTree-Ring Bulletin (7)AuthorsAlfaro, R. I. (1)Bhattacharyya, Amalava (1)Birbal Sahni Institute of Paleobotany, Lucknow, India (1)Department of Computer Science, University of Victoria, Victoria, British Columbia (1)Department of Forestry, Clemson University, Clemson, South Carolina (1)Forestry Canada, Pacific Forestry Centre, Victoria, British Columbia (1)Institute of Plant and Animal Ecology, Ural Dvision of the USSR Academy of Sciences, Sverdlovsk, USSR (1)Laboratory of Tree-Ring Research, University of Arizona, Tucson, Arizona (1)LaMarche, Valmore C., Jr. (1)MacDonald, R. N. (1)View MoreTypes
    Article (7)

    About

    AboutUA Faculty PublicationsUA DissertationsUA Master's ThesesUA Honors ThesesUA PressUA YearbooksUA Catalogs

    Statistics

    Display statistics
     

    Search

    Show Advanced FiltersHide Advanced Filters

    Filters

    Now showing items 1-7 of 7

    • List view
    • Grid view
    • Sort Options:
    • Relevance
    • Title Asc
    • Title Desc
    • Issue Date Asc
    • Issue Date Desc
    • Results Per Page:
    • 5
    • 10
    • 20
    • 40
    • 60
    • 80
    • 100

    • 7CSV
    • 7RefMan
    • 7EndNote
    • 7BibTex
    • Selective Export
    • Select All
    • Help
    Thumbnail

    A Model for Tree-Ring Time Series to Detect Regional Growth Changes in Young, Evenaged Forest Stands

    Zahner, Robert (Tree-Ring Society, 1988)
    Time-related region-wide growth declines or increases due to environmental impacts are not readily detected in rings of young trees because the intrinsic age-related decrease in ring widths is too prominent. Standardization techniques often obscure gradual growth changes due to exogenous factors such as regional atmospheric deposition. The model presented here uses a linear aggregate analysis of ring widths that permits age to be held constant while time varies. Rigorous testing requires tree-ring observations from evenaged stands exhibiting a range of current ages normal for the species and region. With age held constant, the key variable is simply the calendar year to which given rings are dated, a measure of the passage of time. An application of the model is given in which a 36 -year growth decline is identified in 20- to 40- year-old Pinus taeda L. in the southeastern United States.
    Thumbnail

    The Development and State of Dendrochronology in the USSR

    Shiyatov, Stefan G. (Tree-Ring Society, 1988)
    The first dendrochronolcgical investigation in the USSR was carried out at the end of the past century. Systematic study of tree rings for the purpose of dating different events and reconstruction of natural conditions began in 1950-1960's. Tree-ring analysis is most intensively used in the studies of forest ecosystem dynamics, timing and frequency assessment of catastrophic phenomena, reconstruction of radiocarbon content in the Earth atmosphere, and dating of historical wood. Much attention is given to the development of long-term prognoses of tree growth and forest environments.
    Thumbnail

    Tree-Ring Bulletin, Volume 48 (1988)

    Unknown author (Tree-Ring Society, 1988)
    Thumbnail

    Corrigendum

    Unknown author (Tree-Ring Society, 1988)
    Thumbnail

    LaMarche, Valmore C., Jr.

    Unknown author (Tree-Ring Society, 1988)
    Thumbnail

    Dendrochronological Reconnaissance of the Conifers of Northwest India

    Bhattacharyya, Amalava; LaMarche, Valmore C., Jr.; Telewski, Frank W. (Tree-Ring Society, 1988)
    Tree-ring samples were collected from six coniferous species in the western Himalayan ranges during the summer of 1984 in order to evaluate their potential for use in dendroclimatic reconstructions. Picea, Abies, and Pinus spp. had previously been collected for ring widths and densitometric analysis by Hughes and co-workers on relatively mesic subalpine sites near the Vale of Kashmir. Our results support this earlier work in that ring-width series from these habitats are relatively complacent and contain little dendroclimatic information. Density and ring widths are largely temperature-dependent. However, our sampling included Cedrus deodara and Pinus gerardiana from lower altitudes in the dry inner valleys of the Pir Panjal Range, south of Kashmir. Both species exhibit great age, high mean sensitivity and good intra- and inter-specific crossdating, and yielded chronology statistics suggestive of a drought response. We strongly recommend that they receive high priority in future tree-ring research in northwest India.
    Thumbnail

    Effects of Defoliation by the Western False Hemlock Looper on Douglas-Fir Tree-Ring Chronologies

    Alfaro, R. I.; MacDonald, R. N. (Tree-Ring Society, 1988)
    Annual rings of Douglas-fir, Pseudotsuga menziesii (Mirb.) Franco, which sustained 1 year of defoliation by the western false hemlock looper, Nepytia freemanii Munroe (Lepidoptera: Geometridae), showed a period of decrease in breast height ring width starting in the year that followed the damage. The magnitude of the decrease was related to the degree of defoliation: there was no ring width decrease on trees that were 0-10% defoliated; the decrease became progressively more noticeable in trees which sustained increasingly higher defoliation; and it was maximum in trees which sustained 91-100% defoliation. This period of reduction lasted 1 to 5 years and was followed by a period of above-normal growth which was related to defoliation in a similar manner: it was absent in trees 0-10% defoliated and maximum in the 91-100% tree defoliation class. Increase in defoliation caused a significant increase in index standard deviation, autocorrelation and mean sensitivity.
    The University of Arizona Libraries | 1510 E. University Blvd. | Tucson, AZ 85721-0055
    Tel 520-621-6442 | repository@u.library.arizona.edu
    DSpace software copyright © 2002-2017  DuraSpace
    Quick Guide | Contact Us | Send Feedback
    Open Repository is a service operated by 
    Atmire NV
     

    Export search results

    The export option will allow you to export the current search results of the entered query to a file. Different formats are available for download. To export the items, click on the button corresponding with the preferred download format.

    By default, clicking on the export buttons will result in a download of the allowed maximum amount of items.

    To select a subset of the search results, click "Selective Export" button and make a selection of the items you want to export. The amount of items that can be exported at once is similarly restricted as the full export.

    After making a selection, click one of the export format buttons. The amount of items that will be exported is indicated in the bubble next to export format.