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Table 1 Summary statistics of burned and unburned forest monitoring plots. Average values (±1 standard deviation) are presented for plot elevation, stand density, stand basal area, and quadratic mean stem diameter (QMD). Note that slope measurements were missing for one burned plot and for five unburned plots. Live and dead tree summary statistics in 2014, with species composition presented in terms of proportional basal area.

From: Does Prescribed Fire Promote Resistance to Drought in Low Elevation Forests of the Sierra Nevada, California, USA?

Plot type

Plot count (n)

Elevation (m)

Slope (%)

Aspect (°)

Density (trees ha−1)

Basal area (m2 ha−1)

QMD (cm)

Burned

38

1901± 152

21 ± 15

187± 114

414±358

72.6 ± 94.9

52.9 ± 30.7

Tree status

Tree count

QMD (cm)

Species comprising ≥1 % of basal area*

Live

2100

53.1 ± 30.7

ABCO 35 %, CADE 19 %, PIPO 9 %, PILA 8 %, QUCH 8 %, SEGI 8 %, QUKE 6 %, PIXX 2 %, CONU 1 %, PIJE 1 %, TOCA 1 %

Dead

57

33.7 ± 40.7

ABCO 54 %, CADE 21 %, PILA 16 %, PIJE 4 %, PIPO 4 %, PIXX 2 %

 

Plot count ( n )

Elevation (m)

Slope (%)

Aspect (°)

Density (trees ha −1 )

Basal area (m 2 ha −1 )

QMD (cm)

Unburned

18

1804±219

17 ± 13

167 ± 89

894 ± 540

70.1 ± 31.9

35.4 ± 13.0

Tree status

Tree count

QMD (cm)

Species comprising ≥1 % of basal area*

Live

7435

35.7 ± 13.1

ABCO 41 %, CADE 35 %, QUKE 9 %, PILA 8 %, PIPO 3 %, QUCH 2 %, ABMA 1 %, CONU 1 %

Dead

358

14.5 ± 8.6

CADE 39 %, ABCO 26 %, PILA 14 %, PIPO 10 %, QUKE 10 %

  1. *Percentages may not add to 100 due to rounding. ABCO = Abies concolor, ABMA = A. magnifica Andr. Murray, CADE = Calocedrus decurrens, CONU = Cornus nuttallii Audubon, PIJE = Pinus jeffreyi Grev. & Balf., PILA = P. lambertiana, PIPO = P. ponderosa, PIXX = unknown Pinus, QUCH = Quercus chrysolepis Liebm., QUKE = Q. kelloggii Newb., SEGI = Sequoiadendron giganteum (Lindley) Buchholz, TOCA = Torreya californica Torrey.