Table 2. Quality of fit metrics (EF) for model-based versus field-based estimates of coarse woody debris carbon by region and forest type.
Intermountain | North | Pacific | |||
Forest type | West | Central | Northeast | Northwest | South |
White/red/jack pine | – | −0.30 | −0.61 | – | −75.00 |
Spruce/fir | – | −0.47 | −0.31 | – | – |
Longleaf/slash pine | – | – | – | – | −1.09 |
Loblolly/shortleaf pine | – | −6.88 | −2.69 | – | −0.19 |
Other eastern softwoods | – | −35.76 | – | – | −0.01 |
Pinyon/juniper | −0.02 | – | – | −0.34 | 0.00 |
Douglas-fir | 0.48 | – | – | −0.30 | – |
Ponderosa pine | −0.11 | 0.18 | – | −0.83 | – |
Western white pine | – | – | – | −0.28 | – |
Fir/spruce/mountain hemlock | −0.13 | – | – | −0.21 | – |
Lodgepole pine | −0.31 | – | – | −0.19 | – |
Hemlock/sitka spruce | −0.35 | – | – | −0.59 | – |
Western larch | 0.14 | – | – | −0.04 | – |
Redwood | – | – | – | −0.10 | – |
Other western softwoods | 0.12 | – | – | −0.18 | – |
California mixed conifer | – | – | – | −0.69 | – |
Exotic softwoods | – | −0.39 | −332.03 | – | – |
Oak/pine | – | −0.10 | −2.72 | – | −0.04 |
Oak/hickory | – | −2.20 | −0.34 | – | −0.01 |
Oak/gum/cypress | – | – | −1.67 | – | −0.59 |
Elm/ash/cottonwood | −0.90 | −1.08 | −5.00 | −0.45 | −0.01 |
Maple/beech/birch | – | −0.54 | −0.18 | – | −0.12 |
Aspen/birch | −0.16 | −0.15 | −0.29 | −0.13 | – |
Alder/maple | – | – | – | −0.26 | – |
Western oak | – | – | – | −0.61 | – |
Tanoak/laurel | – | – | – | −0.10 | – |
Other hardwoods | – | −0.17 | −1.92 | 0.04 | −0.09 |
Woodland hardwoods | −0.45 | – | – | −0.02 | 0.00 |
Tropical hardwoods | – | – | – | – | 44.12 |
Exotic hardwoods | – | −14.45 | – | −136.32 | 0.07 |
Nonstock | −0.12 | −0.50 | −0.19 | −0.08 | −0.01 |
A value of 1 indicates a ‘perfect’ fit, 0 suggests the model is no better than the mean, and negative values indicate a poor fit. Note that dashes (–) indicate no data for the forest type and region.