Condition of Live Fire-Scarred Ponderosa Pine Trees Six Years after Removing Partial Cross Sections

Persistent Link:
http://hdl.handle.net/10150/251619
Title:
Condition of Live Fire-Scarred Ponderosa Pine Trees Six Years after Removing Partial Cross Sections
Author:
Heyerdahl, Emily K.; McKay, Steven J.
Affiliation:
USDA Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory, Missoula, MT; USDA Forest Service, Pacific Northwest Research Station, Seattle, WA
Issue Date:
2001
Rights:
Copyright © Tree-Ring Society. All rights reserved.
Collection Information:
This item is part of the Tree-Ring Research (formerly Tree-Ring Bulletin) archive. It was digitized from a physical copy provided by the Laboratory of Tree-Ring Research at The University of Arizona. For more information about this peer-reviewed scholarly journal, please email the Editor of Tree-Ring Research at editor@treeringsociety.org.
Publisher:
Tree-Ring Society
Journal:
Tree-Ring Research
Citation:
Heyerdahl, E.K., McKay, S.J. 2001. Condition of live fire-scarred ponderosa pine trees six years after removing partial cross sections. Tree-Ring Research 57(2):131-139.
Abstract:
Our objective was to document the effect of fire-history sampling on the mortality of mature ponderosa pine trees in Oregon. We examined 138 trees from which fire-scarred partial cross sections had been removed five to six years earlier, and 386 similarly sized, unsampled neighbor trees, from 78 plots distributed over about 5,000 ha. Mortality was low for both groups. Although mortality was significantly higher for the sectioned trees than their neighbors (8% versus 1 %), removing a partial section did not appear to increase a tree's susceptibility to death from factors such as wind or insect activity. Specifically, the few sectioned stems that broke did so well above sampling height. Most sectioned trees (79 %) had evidence of insect activity in 1994/95, while only an additional 5% had such evidence in 2000. Mortality among sectioned trees in this study was low probably because we removed relatively small sections, averaging 7 cm thick and 8% of the tree's cross-sectional area, from large trees of a species with effective, resin-based defenses against insects and pathogens. Sampling live ponderosa pine trees appears to be a non-lethal method of obtaining information on past fire regimes in this region because it only infrequently led to their death in the early years after sampling.
Keywords:
Dendrochronology; Tree rings
ISSN:
2162-4585; 1536-1098
Additional Links:
http://www.treeringsociety.org

Full metadata record

DC FieldValue Language
dc.language.isoen_USen_US
dc.titleCondition of Live Fire-Scarred Ponderosa Pine Trees Six Years after Removing Partial Cross Sectionsen_US
dc.contributor.authorHeyerdahl, Emily K.en_US
dc.contributor.authorMcKay, Steven J.en_US
dc.contributor.departmentUSDA Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory, Missoula, MTen_US
dc.contributor.departmentUSDA Forest Service, Pacific Northwest Research Station, Seattle, WAen_US
dc.date.issued2001-
dc.rightsCopyright © Tree-Ring Society. All rights reserved.en_US
dc.description.collectioninformationThis item is part of the Tree-Ring Research (formerly Tree-Ring Bulletin) archive. It was digitized from a physical copy provided by the Laboratory of Tree-Ring Research at The University of Arizona. For more information about this peer-reviewed scholarly journal, please email the Editor of Tree-Ring Research at editor@treeringsociety.org.en_US
dc.publisherTree-Ring Societyen_US
dc.identifier.journalTree-Ring Researchen_US
dc.identifier.citationHeyerdahl, E.K., McKay, S.J. 2001. Condition of live fire-scarred ponderosa pine trees six years after removing partial cross sections. Tree-Ring Research 57(2):131-139.en_US
dc.description.abstractOur objective was to document the effect of fire-history sampling on the mortality of mature ponderosa pine trees in Oregon. We examined 138 trees from which fire-scarred partial cross sections had been removed five to six years earlier, and 386 similarly sized, unsampled neighbor trees, from 78 plots distributed over about 5,000 ha. Mortality was low for both groups. Although mortality was significantly higher for the sectioned trees than their neighbors (8% versus 1 %), removing a partial section did not appear to increase a tree's susceptibility to death from factors such as wind or insect activity. Specifically, the few sectioned stems that broke did so well above sampling height. Most sectioned trees (79 %) had evidence of insect activity in 1994/95, while only an additional 5% had such evidence in 2000. Mortality among sectioned trees in this study was low probably because we removed relatively small sections, averaging 7 cm thick and 8% of the tree's cross-sectional area, from large trees of a species with effective, resin-based defenses against insects and pathogens. Sampling live ponderosa pine trees appears to be a non-lethal method of obtaining information on past fire regimes in this region because it only infrequently led to their death in the early years after sampling.en_US
dc.subjectDendrochronologyen_US
dc.subjectTree ringsen_US
dc.identifier.citationHeyerdahl, E.K., McKay, S.J. 2001. Condition of live fire-scarred ponderosa pine trees six years after removing partial cross sections. Tree-Ring Research 57(2):131-139.en_US
dc.identifier.issn2162-4585-
dc.identifier.issn1536-1098-
dc.identifier.urihttp://hdl.handle.net/10150/251619-
dc.identifier.journalTree-Ring Researchen_US
dc.typeArticleen_US
dc.relation.urlhttp://www.treeringsociety.orgen_US
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