Fire History and Forest Succession in Yellow Pine Stands of the Appalachian Mountains Charles W. Lafon, Department of Geography, Texas A&M University Henri.

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Presentation transcript:

Fire History and Forest Succession in Yellow Pine Stands of the Appalachian Mountains Charles W. Lafon, Department of Geography, Texas A&M University Henri D. Grissino-Mayer, Department of Geography, University of Tennessee Georgina D. Wight, Department of Geography, University of Tennessee Serena R. Aldrich, Department of Geography, Texas A&M University Steve Q. Croy, George Washington and Jefferson National Forests Elaine K. Sutherland, Rocky Mountain Research Station, USDA Forest Service Research funding provided by the National Interagency Fire Center, Joint Fire Science Program (JFSP)

Introduction to the Project

Open Conditions after Fire in a Table Mountain Pine Stand

Stand Conditions in Appalachian Pine Stands

Table Mountain Pine

This Study: Dendroecological Investigation of Fire History and Stand Dynamics

Methods: Fire History from Tree Rings

From Fritts, H.C Tree Rings and Climate. Academic Press, London.

Methods: Fire History from Tree Rings

PART 7: DESCRIPTIVE STATISTICS: NW white pine, 40 year spline 14:37 Wed 06 Apr 2005 Page Corr // Unfiltered \\ //---- Filtered -----\\ No. No. No. with Mean Max Std Auto Mean Max Std Auto AR Seq Series Interval Years Segmt Flags Master msmt msmt dev corr sens value dev corr () nwa001a nwa001b nwa002a nwa002b nwa003A nwa003b nwa004a nwa004b nwa005a nwa005b nwa005b nwa006a nwa006b nwa007a nwa007c nwa008a nwa008b nwa009a nwa009b nwa010a nwa010b Total or mean: = [ COFECHA NWWP COF ] = -

Methods: Fire History from Tree Rings 1802M 1817D 1839D 1853D 1874U 1885U { Fire dates NMD

Methods: Fire History from Tree Rings

Methods: Age Structure and Other Data

Methods: Laboratory Analyses

Study Sites on the George Washington and Jefferson National Forests

Fire History Reconstruction, Mill Mountain MEI: 5 yrs LEI: 2 yrs UEI: 9 yrs 91% Dormant Season Fires

Fire Seasonality in the Appalachians

Stand Age Structure, Mill Mountain

Stand Size Structure, Mill Mountain

Forest Succession, Mill Mountain

Forest Succession, Peters Mountain

Fire History Reconstruction, Brush Mountain MEI: 4 yrs LEI: 1yr UEI: 8 yrs 82% Dormant Season Fires

Stand Age Structure, Brush Mountain

1926D 1934D

Brush Mountain

Fire History Reconstruction, North Mountain

Stand Age Structure, North Mountain

1924D 1926D

Successional Implications: Seedlings and Saplings

Successional Implications: Seedlings and Saplings on Brush Mountain

Successional Implications: Seedlings and Saplings on North Mountain

Successional Implications: Mountain Laurel Establishment

Conclusions Past fire regimes Pine age structure Hardwood age structure, and mountain laurel establishment Increased tree and shrub density Tree reproduction Apparent successional trends Past fire regimes Pine age structure Hardwood age structure, and mountain laurel establishment Increased tree and shrub density Tree reproduction Apparent successional trends

Acknowledgements