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Table 1 Mean stock of carbon in aboveground live tree biomass as computed using the equations from Jenkins et al. [1] and Chojnacky et al. [12]

From: Evaluating revised biomass equations: are some forest types more equivalent than others?

Forest type group All USa North South Rocky Mountain Pacific Coast
Jenkins Chojnacky Jenkins Chojnacky Jenkins Chojnacky Jenkins Chojnacky Jenkins Chojnacky
White/red/jack pine 68.7** 67.2** 67.7** 66.2** 92.4** 93.5**     
Spruce/fir 45.8 40.1 47.5 41.6      20.5* 18.9*
Longleaf/slash pine 35.4 40.6    35.4 40.6     
Loblolly/shortleaf pine 47.0 54 59.0 67.1 47.2 54.1     
Pinyon/juniper 18.4 22.5 15.5 17.2 11.5 13.3 19.6 24.1 21.4 23.4
Douglas-fir 114.5* 108.0*      71.4* 66.5* 148.6* 140.9*
Ponderosa pine 50.0** 50.7** 37.3** 37.9**    46.3** 47.1** 53.5** 54.2**
Western white pine 66.2** 67.6**        74.6 76.7
Fir/spruce/mtn hemlock 92.2* 87.1*      71.8 64.4 119.4** 117.4**
Lodgepole pine 48.6** 48.2**      48.2** 47.2** 49.5** 49.7**
Hemlock/sitka spruce 155.1** 151.0**      108.8* 101.4* 159.7** 155.9**
Western larch 62.6** 65.2**      55.4** 57.5** 69.6 72.6
Redwood 236.2** 235.3**        236.2** 235.3**
Other western softwoods 27.0 35.3      43.2 * 45.8 * 19.5 30.4
California mixed conifer 134.7** 132.8**        134.7** 132.8**
Oak/pine 54.1** 56.6** 64.4** 65.5** 50.9 * 53.9 *     
Oak/hickory 72.7** 72.8** 78.7** 78.8** 65.2** 65.3**     
Oak/gum/cypress 78.1** 79.7** 86.9** 85.2** 78.5** 80.3**     
Elm/ash/cottonwood 56.6** 56.6** 60.6** 59.8** 50.4** 52.2** 48.8** 48.2** 82.3 71.8
Maple/beech/birch 80.7** 80.3** 80.1** 79.7** 82.1** 83.3**     
Aspen/birch 45.3** 43.2** 43.9** 41.8**    52.8** 50.4** 38.0** 36.5**
Alder/maple 98.5** 100.1**        99.4** 101.0**
Western oak 64.7* 61.1*        64.7** 61.1**
Tanoak/laurel 131.2** 134.6**        131.2** 134.6**
Other hardwoods 49.6** 51.2** 43.0* 45.8* 43.2* 45.9*    67.5** 66.3**
Woodland hardwoods 8.6 11.1    5.0 7.0 12.7 15.7 22.1 29.5
  1. Values followed by a double asterisk (**) are equivalent at 5 %; values followed by a single asterisk (*) are equivalent at 10 %. Regions are as shown in Fig. 1. A diamond preceding a value indicates that the sample size was too small for a reliable test of equivalence. Data not shown for categories represented by fewer than 10 plots
  2. aAs shown in Fig. 1
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