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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 on theme: "Fire History and Forest Succession in Yellow Pine Stands of the Appalachian Mountains Charles W. Lafon, Department of Geography, Texas A&M University Henri."— Presentation transcript:

1 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)

2 Introduction to the Project

3 Open Conditions after Fire in a Table Mountain Pine Stand

4 Stand Conditions in Appalachian Pine Stands

5 Table Mountain Pine

6 This Study: Dendroecological Investigation of Fire History and Stand Dynamics

7 Methods: Fire History from Tree Rings

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14 From Fritts, H.C. 1976. Tree Rings and Climate. Academic Press, London.

15 Methods: Fire History from Tree Rings

16 PART 7: DESCRIPTIVE STATISTICS: NW white pine, 40 year spline 14:37 Wed 06 Apr 2005 Page 6 ------------------------------------------------------------------------------------------------------------------------------------ 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 () --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- 1 nwa001a 1892 2003 112 6 0.716 1.99 6.75 1.157.550.339 2.79.534 -.011 2 2 nwa001b 1893 2003 111 6 0.685 1.48 8.15 1.212.668.342 2.74.476 -.020 1 3 nwa002a 1907 2003 97 5 1.614 1.29 5.83.907.741.299 2.80.486.006 1 4 nwa002b 1894 2003 110 6 0.701 1.41 4.63 1.118.850.289 2.56.523 -.008 1 5 nwa003A 1934 2003 70 4 0.663 1.60 3.38.736.823.237 2.66.491.050 1 6 nwa003b 1934 2003 70 4 0.575 1.35 3.28.653.833.232 2.67.487 -.016 1 7 nwa004a 1885 2003 119 6 0.735 1.95 5.39.861.689.273 2.78.456 -.003 2 8 nwa004b 1918 2003 86 5 0.795 1.96 3.36.514.340.227 2.75.476.003 1 9 nwa005a 1837 2003 167 9 0.634 1.37 3.05.610.677.288 2.58.405 -.043 2 10 nwa005b 1827 1925 99 5 0.636 10.27 26.96 5.078.566.324 2.82.432 -.075 1 11 nwa005b 1930 2003 74 4 0.762 1.17 2.42.449.603.271 2.90.471 -.032 1 12 nwa006a 1881 2003 123 6 0.755.99 2.98.459.604.308 2.70.446 -.055 1 13 nwa006b 1864 2003 140 7 0.653 1.05 3.62.535.612.298 2.96.477 -.035 1 14 nwa007a 1909 2003 95 5 0.744.97 2.51.559.759.326 2.80.463.000 1 15 nwa007c 1882 2003 122 6 0.627.95 2.95.589.760.320 3.01.624 -.029 1 16 nwa008a 1802 2003 202 9 2.551.88 3.68.599.889.230 2.70.461 -.029 2 17 nwa008b 1857 2003 147 8 0.661.72 1.40.266.705.230 2.76.467 -.013 1 18 nwa009a 1866 2003 138 7 0.667.94 2.57.487.689.291 2.69.477 -.110 1 19 nwa009b 1861 2003 143 7 0.673.91 2.43.428.701.284 2.91.622 -.024 2 20 nwa010a 1861 2003 143 7 1.561 1.68 3.42.707.771.223 2.70.461 -.027 1 21 nwa010b 1866 2003 138 7 0.682 1.21 4.14.979.902.266 2.75.390 -.044 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 2506 129 4.665 1.61 26.96.853.710.280 3.01.481 -.028 - = [ COFECHA NWWP COF ] = -

17 Methods: Fire History from Tree Rings 1802M 1817D 1839D 1853D 1874U 1885U { Fire dates NMD112 1750 1902

18 Methods: Fire History from Tree Rings

19 Methods: Age Structure and Other Data

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24 Methods: Laboratory Analyses

25 Study Sites on the George Washington and Jefferson National Forests

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

30 Fire Seasonality in the Appalachians

31 Stand Age Structure, Mill Mountain

32 Stand Size Structure, Mill Mountain

33 Forest Succession, Mill Mountain

34 Forest Succession, Peters Mountain

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

36 Stand Age Structure, Brush Mountain

37 1926D 1934D

38 Brush Mountain

39 Fire History Reconstruction, North Mountain

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41 Stand Age Structure, North Mountain

42 1924D 1926D

43 Successional Implications: Seedlings and Saplings

44 Successional Implications: Seedlings and Saplings on Brush Mountain

45 Successional Implications: Seedlings and Saplings on North Mountain

46 Successional Implications: Mountain Laurel Establishment

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48 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

49 Acknowledgements

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