Decay of fire-damaged lodgepole pine in south-central Oregon |
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| Institution: | 1. U.S. Geological Survey, Fort Collins Science Center, Fort Collins, CO 80526, USA;2. Bureau of Reclamation, 86-68220, P.O. Box 25007, Denver, CO 80225, USA;1. Department of Agricultural Biology, Colorado State University, Fort Collins, CO, United States;2. Forest and Rangeland Stewardship Department, Colorado State University, Fort Collins, CO, United States;1. Intelligent Construction Automation Center, Kyungpook National University, 80, Daehak-ro, Buk-gu, Daegu, 41566, Republic of Korea;2. Department of Physics, University College, Benra, Dhuri, Punjab, India;3. Medical Diagnostic Imaging Department, College of Health Sciences, University of Sharjah, Sharjah, 27272, United Arab Emirates;4. Department of Physics, Faculty of Science, University of Tabuk, Tabuk, Saudi Arabia;5. Physics Department, Faculty of Science, Al-Azhar University, Assiut, 71452, Egypt;6. Department of Physics, Sakarya University, Sakarya, Turkey;7. School of Architecture, Civil, Environment and Energy, Kyungpook National University, 1370, Sangyeok-dong, Buk-gu, DaeGu, 702-701, Republic of Korea;8. Department of Mechanical Engineering, Hanyang University, 55 Hanyangdaehak-ro, Ansan, Gyeonggi-do, 15588, Republic of Korea;9. Department of Robotics Engineering, Hanyang University, 55 Hanyangdaehak-ro, Ansan, Gyeonggi-do, 15588, Republic of Korea |
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| Abstract: | About 150 lodgepole pines, Pinus contorta var. murrayana (Grev. and Balf.), growing in topoedaphic climax stands of south-central Oregon, were identified as having survived fires that occurred over a period from 1839 to 1982. All fires were natural wildfires, except for prescribed burns of 1976, 1980 and 1982. The trees were sampled for bole and root damage to investigate fungal colonization patterns, establishment of decay columns, and diameter growth.Fire-damaged roots were the principal entry point for decay fungi in fire damaged trees. White-rot fungal species and fungi imperfecti rapidly colonized fire-killed root tissues within 2 years after a fire. These fungi were later displaced by slower growing brown-rot Basidiomycetes that eventually extended into the boles of infected trees. Trees with butt rot, principally caused by Poria asiatica, grew significantly slower than uninfected trees. |
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