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Fire History and Age-Structure on Price Mountain, Virginia

Fire History and Age-Structure on Price Mountain, Virginia. NADEF 2011 8 August 2011. Objectives. Develop master chronology for chestnut oak, pitch pine, table mountain pine, and sourwood Determine fire history for Price Mountain

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Fire History and Age-Structure on Price Mountain, Virginia

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  1. Fire History and Age-Structure on Price Mountain, Virginia NADEF 2011 8 August 2011

  2. Objectives • Develop master chronology for chestnut oak, pitch pine, table mountain pine, and sourwood • Determine fire history for Price Mountain • Investigate fire scarring potential of black gum, sourwood, and other hardwoods • Investigate current stand age structure

  3. Study Location

  4. Field Sampling

  5. Species Sampled

  6. Preparation and Analysis

  7. PRI025 – Pinus spp. Smith and Sutherland, 1999 & 2001 WW

  8. PRI010A – Pinus spp. WW WW

  9. PRI021A – Quercus spp. WW

  10. PRI020 – Oxydendrumarboreum WID WW WR WID CBL

  11. PRI009A – Robiniapseudoacacia WW

  12. PRI028 – Caryaspp WW CBL WID

  13. PRI012A – Nyssa sylvatica WW WID

  14. PRI006 – Castaneadentata WW

  15. Skeleton Plots

  16. Chestnut Oak chronology C

  17. FHX2 Fire Analysis Mean Fire Interval = 14 years Based on 2 trees scarred minimum and 25% scarred trees Fire Years 1861 1882 1892 1896 1916 1925

  18. Superposed Epoch Analysis

  19. Age Structure

  20. Age Structure Copenheaveret al. 2006

  21. Conclusions • Chronologies: • No sourwood chronologies in the ITRDB. • Pitch and Table Mountain pine chronologies correlated with each other and nearby Brush Mountain chronology from 1993 NADEF. • Fire History: • 6 fire years, with 14 year mean fire interval. • Fire suppression effective after 1930. • Hardwood Fire Scars: • Black gum, sourwood, black locust, American Chestnut, and pignut hickory all scarred. • Unable to crossdate black gum, chestnut, and locust • Age Structure: • Establishment coincided with chestnut blight, high grading, and end of fire in 1930’s.

  22. Acknowledgements • National Science Foundation • Dr. Carolyn Copenheaver for local organizing and field site selection • Virginia Tech/ Fishburn Forest • Mountain Lake Biological Station • Dr. Henri Grissino-Mayer for program development (FHX2) • Our fearless project leaders Dr. Margot Kaye and Dr. Jim Speer • Dr. Henry Wilbur, Salamander Hunter extraordinaire The End

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