Research Article

Tree Mortality following Prescribed Fire and a Storm Surge Event in Slash Pine (Pinus elliottii var. densa) Forests in the Florida Keys, USA

Table 1

Experimental plots within six blocks with the burn dates, mean ground elevation (m; NAVD-1988), number of live trees, mean DBH (cm), char height (m), percent crown scorch (%), and years when post-fire status (live and dead) of trees was recorded. Each block had one of two characteristic understory types: open (O), and shrubby (S). The three treatments were control (C), summer (S), and winter (W). NB: not burned. In 2008, 3 years after Hurricane Wilma, status of tree was recorded and dbh was measured in all 18 plots.

BlockBurningPlot IDExperimentalSecondaryElevationNo. ofDBH (cm)Char height (m)Crown Scorch (%)Post-fire (burn-1) tree surveyStorm-Surge
treatmentburn date (1)burn date (2)(m)treesMean (Range)Mean (± SD)Mean (± SD)Yr-1Yr-2Yr-3Yr-7

1998-OC1998-O-C NB2nd Aug, 041.32741713.2 (5.1–29.4)
S1998-O-S16 Aug, 982nd Aug, 040.88845712.5 (5.0–30.6)2.5 ± 1.661 ± 36199920002001
W1998-O-W15 Dec, 982nd Aug, 040.76261211.5 (5.0–30.7)1.7 ± 1.146 ± 44199920002001
1998-SC1998-S-CNB2nd Aug, 040.96835513.8 (5.0–38.6)Impacted
S1998-S-S17 Aug, 982nd Aug, 040.76249413.3 (5.0–38.0)2.9 ± 2.066 ± 37199920002001Impacted
W1998-S-W15 Dec, 982nd Aug, 040.56533613.6 (5.0–40.4)1.3 ± 0.921 ± 34199920002001Impacted
1999-OC1999-O-CNB0.82254312.4 (5.0–29.7)Impacted
S1999-O-S18 July, 990.55936015.1 (5.0–33.0)2.1 ± 1.455 ± 3820002001Impacted
W1999-O-W12 Dec, 000.61866211.2 (5.0–35.3)1.3 ± 1.039 ± 372001Impacted
1999-SC1999-S-CNB1.29678010.1 (5.0–25.2)
S1999-S-S22 June, 991.22464310.3 (5.0–26.4)2.8 ± 1.784 ± 3220002001
W1999-S- NB1.39510069.2 (5.0–21.7)
2000-OC2000-O-CNB1.42251612.6 (5.0–33.0)
S2000-O-S19 July, 011.61944413.5 (5.0–30.1)2.0 ± 1.158 ± 342008
W2000-O- 19 July, 011.51547413.1 (5.1–32.7)3.4 ± 1.684 ± 242008
2000-SC2000-S-CNB0.7655279.8 (5.0–31.4)Impacted
S2000-S-S18 July, 011.16364211.5 (5.0–26.6)2.6 ± 1.866 ± 362008
W2000-S- 18 July, 011.14769310.5 (5.0–27.4)2.7 ± 1.674 ± 31 2008

ever burned: urned in summer