DEFINING GEOLOGIC HAZARDS FOR NATURAL RESOURCES MANAGEMENT USING TREE-RING ANALYSIS

Landslides, avalanches, floods, and other geologic hazards impair natural resources management by jeopardizing public safety, damaging or restricting resource utilization, and necessitating expenditures for corrective measures. The negative impact of geologic hazard events can be reduced by tailoring resources management to hazard potential of an area. This requires assessment of where and how frequently the events occur. National forests and other managed wildlands often lack monitoring or historical records to compute frequency of hazard occurrence. Tree-ring analysis, based on internal growth response to external events such as tilting and abrasion, can provide frequency data. Two examples of the use of tree-ring analysis to date landslide activity illustrate advantages and limitations of the technique. An example from the Fishlake National Forest in central Utah illustrates assessment for planning purposes. An example from the Sierra National Forest in east-central California shows assessment applied to project design. Many geologic hazards in addition to landslides are suited to tree-ring analysis to establish frequency of occurrence. Hazard reduction efforts in natural resources management could be enhanced by careful application of tree-ring analysis. (Author)

  • Corporate Authors:

    Springer Verlag

    175 5th Avenue
    New York, NY  United States  10010
  • Authors:
    • Degraff, J V
    • Agard, S S
  • Publication Date: 1984-11

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Filing Info

  • Accession Number: 00393942
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jul 31 1985 12:00AM