Appendix A. Ecoregion, ownership, and forest type summary tables and statistics.
TABLE A1. Total estimates of biomass, NPP, mortality.
A. Ecoregion total estimates
Ecoregion |
Live Biomass Pg C |
Dead Biomass Pg C |
NPP Pg C yr-1 |
Mortality Pg C yr-1 |
BM |
0.182 |
0.056 |
0.0080 |
0.0025 |
CR |
0.627 |
0.119 |
0.0256 |
0.0021 |
EC |
0.200 |
0.042 |
0.0010 |
0.0023 |
KM |
0.626 |
0.088 |
0.0246 |
0.0042 |
SN |
0.347 |
0.066 |
0.0140 |
0.0042 |
WC |
0.511 |
0.116 |
0.0144 |
0.0035 |
CB |
0.008 |
0.001 |
0.0004 |
7.6x10-5 |
CO |
0.128 |
0.140 |
0.0084 |
0.0016 |
CP |
0.002 |
8.7 × 10-5 |
9.6 × 10-5 |
1.6 × 10-5 |
NB |
0.006 |
0.003 |
0.0003 |
0.0001 |
WV |
0.073 |
0.010 |
0.0034 |
0.0003 |
Total |
2.710 |
0.514 |
0.1091 |
0.0208 |
B. Owner total estimates (within ecoregion)
Ecoregion |
Live Biomass Pg C |
Dead Biomass Pg C |
NPP Pg C yr-1 |
Mortality Pg C yr-1 |
||||
Private |
Public |
Private |
Public |
Private |
Public |
Private |
Public |
|
BM |
0.035 |
0.126 |
0.014 |
0.038 |
0.0022 |
0.0054 |
0.0004 |
0.0017 |
CR |
0.284 |
0.236 |
0.068 |
0.040 |
0.0181 |
0.0081 |
0.0016 |
0.0006 |
EC |
0.059 |
0.134 |
0.015 |
0.028 |
0.0034 |
0.0066 |
0.0006 |
0.0016 |
KM |
0.163 |
0.414 |
0.028 |
0.057 |
0.0100 |
0.0156 |
0.0010 |
0.0028 |
SN |
0.088 |
0.236 |
0.019 |
0.044 |
0.0050 |
0.0094 |
0.0011 |
0.0028 |
WC |
0.070 |
0.392 |
0.026 |
0.087 |
0.0041 |
0.0108 |
0.0004 |
0.0027 |
CB |
0.000 |
0.008 |
- |
0.001 |
1.7 × 10-5 |
0.0003 |
4.6 × 10-6 |
7.2 × 10-5 |
CO |
0.119 |
0.017 |
0.014 |
0.002 |
0.0081 |
0.0010 |
0.0016 |
0.0002 |
CP |
0.001 |
0.000 |
7.3 × 10-5 |
- |
8.1 × 10-5 |
- |
1.4 × 10-5 |
- |
NB |
0.002 |
0.004 |
- |
0.002 |
9.6 × 10-5 |
0.0002 |
1.1 × 10-5 |
8.4 × 10-5 |
WV |
0.058 |
0.009 |
0.007 |
0.001 |
0.0031 |
0.0003 |
0.0003 |
2.9 × 10-5 |
Total |
0.880 |
1.580 |
0.177 |
0.300 |
0.0516 |
0.0578 |
0.0070 |
0.0196 |
C.
Ecoregion |
Live Biomass Pg C |
|||||||
1 |
2 |
3 |
4 |
5 |
6 |
7 |
Total |
|
BM |
0.091 |
0.008 |
0.003 |
0.007 |
0.067 |
5.8 × 10-5 |
0.003 |
0.179 |
CR |
0.429 |
0.052 |
- |
0.014 |
0.002 |
0.125 |
0.001 |
0.623 |
EC |
0.080 |
5.0 × 10-4 |
0.003 |
3.0 × 10-4 |
0.111 |
0.004 |
0.003 |
0.201 |
KM |
0.478 |
0.005 |
- |
2.0 × 10-4 |
0.016 |
0.126 |
0.001 |
0.627 |
SN |
0.256 |
- |
0.003 |
- |
0.055 |
0.033 |
0.002 |
0.348 |
WC |
0.480 |
0.006 |
- |
0.002 |
0.016 |
0.004 |
0.001 |
0.508 |
CB |
0.001 |
- |
- |
- |
0.007 |
- |
4.0 × 10-4 |
0.008 |
CO |
0.024 |
0.004 |
- |
- |
0.011 |
0.002 |
- |
0.039 |
CP |
4.0 × 10-4 |
- |
1.0 × 10-4 |
- |
0.001 |
- |
- |
0.001 |
NB |
0.002 |
- |
0.001 |
- |
0.001 |
- |
- |
0.004 |
WV |
0.060 |
- |
- |
- |
- |
0.012 |
0.001 |
0.072 |
Ecoregion |
Dead Biomass Pg C |
|||||||
1 |
2 |
3 |
4 |
5 |
6 |
7 |
Total |
|
BM |
0.027 |
0.004 |
0.001 |
0.002 |
0.015 |
0.000 |
0.004 |
0.052 |
CR |
0.078 |
0.012 |
- |
0.002 |
0.001 |
0.025 |
4.0 × 10-4 |
0.117 |
EC |
0.016 |
1.0 × 10-4 |
4.0 × 10-4 |
7.3 × 10-5 |
0.022 |
0.001 |
0.002 |
0.041 |
KM |
0.067 |
0.001 |
- |
3.7 × 10-5 |
0.003 |
0.014 |
.001 |
0.086 |
SN |
0.046 |
- |
4.0 × 10-5 |
- |
0.010 |
0.004 |
0.001 |
0.062 |
WC |
0.107 |
0.002 |
- |
0.001 |
0.003 |
0.001 |
0.002 |
0.115 |
CB |
2.0 × 10-5 |
- |
- |
- |
0.001 |
- |
7.6 × 10-5 |
0.001 |
CO |
0.003 |
1.0 × 10-5 |
- |
- |
0.002 |
0.005 |
- |
0.009 |
CP |
= |
- |
- |
- |
- |
2.2 × 10-5 |
- |
2.2 × 10-5 |
NB |
0.001 |
- |
8.4 × 10-5 |
- |
2.0 × 10-4 |
- |
- |
0.001 |
WV |
0.008 |
- |
- |
- |
- |
0.001 |
3.0 × 10-4 |
0.009 |
Ecoregion |
NPP Pg C yr-1 |
|||||||
1 |
2 |
3 |
4 |
5 |
6 |
7 |
Total |
|
BM |
0.0034 |
0.0003 |
0.0002 |
0.0002 |
0.0036 |
4.2 × 10-6 |
0.0002 |
0.0080 |
CR |
0.0153 |
0.0024 |
- |
0.0004 |
0.0001 |
0.0074 |
4.3 × 10-5 |
0.0257 |
EC |
0.0035 |
2.5 × 10-5 |
0.0001 |
4.3 × 10-6 |
0.0060 |
0.0002 |
0.0002 |
0.0100 |
KM |
0.0165 |
0.0002 |
- |
6.9 × 10-6 |
0.0009 |
0.0069 |
9.7 × 10-5 |
0.0247 |
SN |
0.0095 |
- |
0.0001 |
- |
0.0027 |
0.0016 |
0.0002 |
0.0141 |
WC |
0.0131 |
0.0001 |
- |
5.3 × 10-5 |
0.0008 |
0.0002 |
6.6 × 10-5 |
0.0144 |
CB |
3.3 × 10-5 |
- |
- |
- |
0.0003 |
- |
3.7 × 10-5 |
0.0003 |
CO |
0.0013 |
0.0001 |
- |
- |
0.0008 |
0.0037 |
- |
0.0059 |
CP |
3.0 × 10-5 |
- |
1.0 × 10-5 |
- |
3.2 × 10-5 |
- |
- |
7.2 × 10-5 |
NB |
7.0 × 10-5 |
- |
8.5 × 10-5 |
- |
7.2 × 10 |
- |
1.1 × 10-5 |
0.0002 |
WV |
0.0026- |
- |
- |
- |
- |
0.0007 |
7.6 × 10-5 |
0.0034 |
Ecoregion |
Mortality Pg C yr-1 |
|||||||
1 |
2 |
3 |
4 |
5 |
6 |
7 |
Total |
|
BM |
0.0015 |
0.0001 |
2.9 × 10-5 |
9.9 × 10-5 |
0.0006 |
1.2 × 10-6 |
3.9 × 10-5 |
0.0025 |
CR |
0.0012 |
0.0002 |
- |
3.3 × 10-5 |
1.3 × 10-5 |
0.0007 |
1.7 × 10-5 |
0.0021 |
EC |
0.0013 |
3.6 × 10-6 |
2.0 × 10-5 |
2.7 × 10-6 |
0.0010 |
3.0 × 10-5 |
2.4 × 10-5 |
0.0023 |
KM |
0.0033 |
3.3 × 10-5 |
- |
1.6 × 10-6 |
0.0001 |
0.0007 |
6.8 × 10-6 |
0.0042 |
SN |
0.0033 |
- |
2.5 × 10-5 |
- |
0.0005 |
0.0003 |
2.5 × 10-5 |
0.0042 |
WC |
0.0032 |
3.8 × 10-5 |
- |
2.0 × 10-5 |
0.0002 |
2.4 × 10-5 |
6.5 × 10-6 |
0.0035 |
CB |
1.0 × 10-5 |
- |
- |
- |
5.9 × 10-5 |
- |
3.2 × 10-6 |
0.0001 |
CO |
0.0002 |
4.2 × 10-6 |
- |
- |
7.5 × 10-5 |
0.0008 |
- |
0.0011 |
CP |
3.7 × 10-6 |
- |
1.1 × 10-6 |
- |
6.0 × 10-6 |
5.6 × 10-6 |
- |
1.6 × 10-5 |
NB |
6.2 × 10-5 |
- |
1.3 × 10-5 |
- |
1.2 × 10-5 |
6.7 × 10-7 |
6.0 × 10-7 |
8.8 × 10-5 |
WV |
0.0002 |
- |
- |
- |
- |
7.0 × 10-4 |
3.9 × 10-6 |
0.0003 |
1. Forest Types: 1 =Fir/Douglas fir/Hemlock, 2=Cedar/Larch/Sequoia/Redwood, 3=Juniper/Cypress, 4=Spruce, 5=Pine, 6=Hardwoods, 7=Non-Stocked
2. Totals were calculated using the mean value per category and multiplied by the corresponding land area. Note that total regional values will vary by method (i.e., the total sum of each ecoregion estimate vs. the total sum of each ownership within ecoregion estimate will be different because different mean values are used to multiply by disproportionate land areas).
TABLE A2. Ecoregion, owner, and forest type mean estimates (± standard errors) of biomass, NPP, and mortality.
A. Ecoregion mean estimates
Ecoregion |
Live Biomass kg C m-2 |
Dead Biomass kg C m-2 |
NPP kg C m-2 yr-1 |
Mortality kg C m-2 yr-1 |
BM |
6.4±0.1 |
2.0±0.1 |
0.30±0.00 |
0.09±0.002 |
CR |
19.1±0.5 |
3.6±0.1 |
0.78±0.01 |
0.05±0.001 |
EC |
6.7±0.1 |
1.4±0.1 |
0.33±0.00 |
0.08±0.002 |
KM |
15.4±0.3 |
2.2±0.1 |
0.60±0.01 |
0.10±0.003 |
SN |
11.3±0.3 |
2.2±0.2 |
0.46±0.00 |
0.14±0.004 |
WC |
17.7±0.3 |
4.0±0.1 |
0.50±0.00 |
0.12±0.002 |
CB |
5.0±0.8 |
0.9±0.2 |
0.22±0.02 |
0.05±0.007 |
CO |
7.2±0.6 |
0.8±0.1 |
0.47±0.02 |
0.09±0.009 |
CP |
3.8±1.4 |
0.2±0.0 |
0.24±0.02 |
0.04±0.011 |
NB |
3.5±0.8 |
1.6±0.7 |
0.18±0.02 |
0.06±0.029 |
WV |
14.4±1.3 |
1.9±0.4 |
0.68±0.04 |
0.06±0.006 |
Total |
10.1±1.1 |
1.9±0.3 |
0.43±0.06 |
0.08±0.009 |
B. Owner mean estimates (within ecoregion)
Ecoregion |
Live Biomass kg C m-2 |
Dead Biomass kg C m-2 |
NPP kg C m-2 yr-1 |
Mortality kg C m-2 yr-1 |
||||
Private |
Public |
Private |
Public |
Private |
Public |
Private |
Public |
|
BM |
3.7±0.3 |
6.7±0.1 |
1.5±0.2 |
2.0±0.1 |
0.23±0.01 |
0.28±0.00 |
0.04±0.00 |
0.09±0.01 |
CR |
12.8±0.6 |
22.2±0.6 |
3.1±0.2 |
3.8±0.2 |
0.81±0.02 |
0.76±0.01 |
0.07±0.00 |
0.07±0.01 |
EC |
5.8±0.4 |
6.8±0.1 |
1.5±0.2 |
1.4±0.1 |
0.34±0.02 |
0.33±0.00 |
0.06±0.01 |
0.08±0.02 |
KM |
11.1±0.6 |
15.8±0.3 |
1.9±0.2 |
2.2±0.1 |
0.67±0.02 |
0.60±0.01 |
0.07±0.00 |
0.11±0.01 |
SN |
8.6±0.6 |
11.6±0.3 |
1.8±0.2 |
2.2±0.1 |
0.46±0.02 |
0.46±0.01 |
0.11±0.01 |
0.14±0.01 |
WC |
9.8±0.8 |
18.0±0.3 |
3.7±0.5 |
4.0±0.1 |
0.58±0.03 |
0.50±0.00 |
0.05±0.00 |
0.12±0.00 |
CB |
3.7±0.0 |
5.1±0.8 |
- |
0.9±0.2 |
0.18±0.00 |
0.22±0.02 |
0.05±0.01 |
0.05±0.01 |
CO |
7.9±0.6 |
6.4±0.8 |
1.0±0.2 |
0.6±0.2 |
0.54±0.03 |
0.39±0.03 |
0.10±0.01 |
0.06±0.01 |
CP |
3.8±1.0 |
0.2±0.1 |
- |
0.24±0.02 |
- |
0.04±0.00 |
- |
|
NB |
4.0±1.0 |
3.4±0.8 |
- |
1.6±0.7 |
0.18±0.04 |
0.18±0.03 |
0.02±0.00 |
0.07±0.01 |
WV |
12.5±1.0 |
19.0±0.3 |
1.6±0.5 |
2.4±0.9 |
0.67±0.05 |
0.70±0.06 |
0.06±0.01 |
0.06±0.02 |
Total |
7.6±0.2 |
11.5±0.1 |
2.1±0.1 |
2.1±0.0 |
0.45±0.01 |
0.44±0.01 |
0.08±0.01 |
0.06±0.01 |
C. Forest type mean estimates (within ecoregion)
Ecoregion |
Live Biomass kg C m-2 |
|||||||
1 |
2 |
3 |
4 |
5 |
6 |
7 |
All |
|
BM |
7.8±0.2 |
8.5±0.6 |
1.8±0.2 |
9.7±0.5 |
5.8±0.1 |
2.6±0.0 |
1.8±0.1 |
5.4±0.3 |
CR |
21.0±0.7 |
20.0±1.6 |
- |
26.2±4.0 |
5.1±1.1 |
14.3±0.6 |
2.3±0.8 |
14.9±1.5 |
EC |
10.4±0.3 |
5.9±1.6 |
4.6±0.6 |
16.7±0.0 |
5.8±0.1 |
8.9±1.6 |
1.6±0.1 |
7.7±0.8 |
KM |
17.3±0.4 |
10.4±3.0 |
- |
7.9±0.0 |
5.4±0.5 |
14.2±0.5 |
1.7±0.2 |
9.5±0.8 |
SN |
14.0±0.2 |
- |
9.3±2.0 |
- |
6.8±0.3 |
11.5±0.6 |
1.4±0.1 |
8.6±0.6 |
WC |
19.0±0.3 |
20.0±3.0 |
- |
15.0±1.6 |
7.5±0.4 |
8.1±1.1 |
2.1±0.3 |
12.0±1.1 |
CB |
7.1±3.5 |
- |
- |
- |
5.8±0.9 |
- |
1.4±0.1 |
4.8±1.5 |
CO |
8.9±1.3 |
26.0±0.0 |
- |
- |
4.6±0.7 |
7.1±0.6 |
- |
11.6±0.9 |
CP |
4.0±0.0 |
- |
1.2±0.0 |
- |
6.1±0.0 |
- |
- |
3.8±0.0 |
NB |
7.9±4.0 |
- |
2.1±0.4 |
- |
4.2±1.0 |
- |
0.9±0.7 |
3.8±1.4 |
WV |
16.0±1.5 |
- |
- |
- |
- |
11.0±2.0 |
5.3±2.4 |
10.6±2.0 |
Ecoregion |
Dead Biomass kg C m-2 |
|||||||
1 |
2 |
3 |
4 |
5 |
6 |
7 |
All |
|
BM |
2.3±0.1 |
3.5±0.4 |
0.3±0.1 |
3.4±0.3 |
1.3±0.1 |
- |
2.1±0.4 |
2.2±0.2 |
CR |
3.8±0.2 |
4.5±0.8 |
- |
3.2±0.6 |
1.4±1.2 |
2.8±0.2 |
1.9±0.4 |
2.9±0.5 |
EC |
2.1±0.1 |
1.6±0.3 |
0.68±0.2 |
4.5±0.0 |
1.1±0.0 |
1.6±0.3 |
1.0±0.1 |
1.8±0.2 |
KM |
2.4±0.1 |
1.7±0.1 |
- |
1.4±0.0 |
1.1±0.1 |
1.6±0.1 |
1.0±0.2 |
1.5±0.2 |
SN |
2.5±0.1 |
- |
1.4±0.5 |
- |
1.3±0.1 |
1.5±0.2 |
0.9±0.1 |
1.5±0.2 |
WC |
4.2±0.1 |
6.3±1.2 |
- |
4.7±0.9 |
1.5±0.1 |
2.9±0.5 |
3.4±0.8 |
3.8±0.6 |
CB |
1.5±0.0 |
- |
- |
- |
0.9±0.2 |
- |
0.2±0.0 |
0.9±0.2 |
CO |
1.0±0.2 |
0.8±0.0 |
- |
- |
0.7±0.3 |
0.6±0.1 |
- |
0.8±0.2 |
CP |
- |
- |
- |
- |
- |
0.2±0.0 |
- |
0.2±0.0 |
NB |
2.7±1.0 |
- |
0.1±0.0 |
- |
0.7±0.5 |
- |
- |
1.2±0.8 |
WV |
2.2±0.5 |
- |
- |
- |
- |
0.7±0.2 |
1.4±0.0 |
1.5±0.4 |
Ecoregion |
NPP kg C m-2 yr-1 |
|||||||
1 |
2 |
3 |
4 |
5 |
6 |
7 |
All |
|
BM |
0.29±0.00 |
0.28±0.014 |
0.13±0.01 |
0.28±0.02 |
0.31±0.00 |
0.19±0.00 |
0.12±0.00 |
0.23±0.01 |
CR |
0.75±0.01 |
0.92±0.04 |
- |
0.75±0.04 |
0.41±0.08 |
0.84±0.02 |
0.19±0.04 |
0.65±0.04 |
EC |
0.46±0.01 |
0.31±0.04 |
0.21±0.02 |
0.27±0.00 |
0.30±0.00 |
0.56±0.09 |
0.13±0.00 |
0.32±0.03 |
KM |
0.60±0.01 |
0.45±0.07 |
- |
0.26±0.00 |
0.31±0.02 |
0.78±0.02 |
0.14±0.01 |
0.42±0.02 |
SN |
0.52±0.01 |
- |
0.31±0.05 |
- |
0.34±0.01 |
0.57±0.02 |
0.13±0.01 |
0.37±0.02 |
WC |
0.52±0.01 |
0.54±0.04 |
- |
0.39±0.04 |
0.36±0.01 |
0.48±0.05 |
0.14±0.01 |
0.40±0.03 |
CB |
0.26±0.15 |
- |
- |
- |
0.24±0.02 |
- |
0.11±0.01 |
0.21±0.06 |
CO |
0.48±0.07 |
0.87±0.00 |
- |
- |
0.33±0.04 |
0.51±0.04 |
- |
0.54±0.05 |
CP |
0.30±0.00 |
- |
0.10±0.00 |
- |
0.32±0.00 |
- |
- |
0.24±0.00 |
NB |
0.36±0.11 |
- |
0.13±0.01 |
- |
0.21±0.03 |
- |
0.08±0.01 |
0.19±0.04 |
WV |
0.71±0.04 |
- |
- |
- |
- |
0.67±0.10 |
0.34±0.12 |
0.57±0.09 |
Ecoregion |
Mortality kg C m-2 yr-1 |
|||||||
1 |
2 |
3 |
4 |
5 |
6 |
7 |
All |
|
BM |
0.13±0.00 |
0.12±0.01 |
0.02±0.00 |
0.14±0.01 |
0.06±0.00 |
0.06±0.00 |
0.02±0.00 |
0.08±0.01 |
CR |
0.06±0.00 |
0.08±0.01 |
- |
0.06±0.01 |
0.04±0.01 |
0.08±0.00 |
0.01±0.00 |
0.05±0.01 |
EC |
0.16±0.01 |
0.04±0.01 |
0.03±0.01 |
0.16±0.00 |
0.05±0.00 |
0.07±0.01 |
0.01±0.00 |
0.08±0.01 |
KM |
0.12±0.00 |
0.07±0.01 |
- |
0.06±0.00 |
0.04±0.00 |
0.08±0.00 |
0.01±0.00 |
0.06±0.01 |
SN |
0.18±0.01 |
- |
0.07±0.02 |
- |
0.06±0.00 |
0.11±0.01 |
0.02±0.00 |
0.09±0.01 |
WC |
0.13±0.00 |
0.14±0.02 |
- |
0.15±0.02 |
0.07±0.01 |
0.05±0.01 |
0.01±0.00 |
0.09±0.01 |
CB |
0.08±0.06 |
- |
- |
- |
0.05±0.01 |
- |
0.01±0.00 |
0.05±0.02 |
CO |
0.06±0.01 |
0.03±0.00 |
- |
- |
0.03±0.01 |
0.11±0.02 |
- |
0.04± |
CP |
0.04±0.00 |
- |
0.01±0.00 |
- |
0.06±0.00 |
0.06±0.00 |
- |
0.04±0.00 |
NB |
0.32±0.17 |
- |
0.02±0.00 |
- |
0.03±0.01 |
0.01±0.00 |
0.01±0.00 |
0.08±0.05 |
WV |
0.06±0.01 |
- |
- |
- |
- |
0.06±0.01 |
0.02±0.01 |
0.05±0.01 |
1. Forest Types: 1 =Fir/Douglas fir/Hemlock, 2=Cedar/Larch/Sequoia/Redwood, 3=Juniper/Cypress, 4=Spruce, 5=Pine, 6=Hardwoods, 7=Non-Stocked
TABLE A3. Comparison of ecoregion mean (kg C m-2) and total (Pg C) estimates of live biomass for single condition (SC) and all plots.
Ecoregion |
SC Mean |
All (mean) |
SC (total) |
All (total) |
Adj. R2* |
BM |
6.4 |
8.6 |
0.182 |
0.274 |
0.75 |
CR |
19.1 |
18.2 |
0.627 |
0.597 |
0.90 |
EC |
6.8 |
7.3 |
0.200 |
0.218 |
0.90 |
KM |
15.4 |
15.4 |
0.627 |
0.627 |
0.90 |
SN |
11.3 |
12.4 |
0.347 |
0.380 |
0.83 |
WC |
17.7 |
19.1 |
0.511 |
0.551 |
0.91 |
CB |
5.0 |
5.9 |
0.008 |
0.010 |
0.99 |
CO |
7.2 |
7.6 |
0.128 |
0.135 |
0.70 |
CP |
3.8 |
4.6 |
0.002 |
0.002 |
- |
NB |
3.5 |
4.3 |
0.006 |
0.008 |
0.81 |
WV |
14.4 |
13.3 |
0.728 |
0.067 |
0.88 |
Total |
10.1 |
10.6 |
2.71 |
2.84 |
*Correlation of 5-yr bin means of single condition plots vs. all plots
TABLE A4. Methods and equations for computing biomass and NPP components and regional and total stocks and flux.
Component |
Code |
Equation |
Notes |
Bole Biomass |
Biomassb |
Bole Volume Equation*Wood Density1 |
Bole volume derived from allometric equation using DBH (diameter at breast height) and height |
Branch biomass |
Biomassbr |
Allometric Equation |
Derived from DBH and/or height |
Bark biomass |
Biomassba |
Allometric Equation |
Derived from DBH and/or height |
Foliage biomass |
Biomassf |
Allometric Equation |
Derived (allometry) from DBH and/or height |
Coarse root biomass |
Biomasscr |
Allometric Equation |
Derived from a volume equation developed for Douglas-fir and species-specific wood densities |
Leaf Area Index |
LAI |
Biomassf/ LMA |
Calculated from Biomassf and leaf mass per unit leaf area (LMA)2 |
Fine root biomass |
Biomassfr |
(exp(4.4179+(.3256*LAI)-(.0237*LAI2)) |
Van Tuyl et al. (2005), Supplemental plot data (P < 0.001, R2 = 0.41, n = 36) |
Understory shrub biomass |
Biomasss |
a*(1-(exp(-b*Shrub Volume)))4 |
Shrub volume calculated as the product of the recorded fraction plot cover, plot area, and height |
Coarse woody debris volume |
Volumecwd |
(9.869/(8*L))*(D2)5 |
Where, L is the transect length in meters and D is the diameter of the piece in centimeters |
Coarse woody debris biomass |
Biomasscwd |
Volumecwd * Adjusted Density |
Derived by multiplying Volumecwd by a decay class adjusted species-specific density |
Wood NPP (Bole, Branch, Bark, and Coarse Roots) |
NPPw |
Biomassw2 – Biomassw1 |
Difference between biomass of woody components at current and previous time steps |
Foliage NPP |
NPPf |
Biomassf/ Foliage Retention time |
Biomass of foliage divided by the average number of years of foliage a stand carries5 |
Fine root NPP |
NPPfr |
Biomassfr * 1.2 yearr-1 |
Average fine root turnover (1.2 year-1) obtained from the literature and supplemental plot data (Keyes and Grier 1981, Campbell et al. 2004a) |
Regional estimates |
Sum of (Ecoregion mean * Forested Area) |
||
Theoretical stocks |
Sum of (Ecoregion asymptote * Forested Area) |
Asymptote is parameter ‘a’ from the curve fit to the mean trend of the data (Table 5). |
1 Species-specific wood densities were obtained from US Forest Service wood density survey for western Oregon (Maeglin and Wahlgren 1972), the Forest Products Laboratory wood handbook (1974), and from wood cores obtained on our supplemental plots. Wood densities were reduced according to decay class for standing dead trees (Waddell 2002)
2 LMA was obtained from a look-up table of species-specific values obtained from measurements on the supplemental plots in each of the ecoregions. In some cases, a species-specific value was not available and therefore a closely related species was used.
3 The parameters "a" and "'b" are regression coefficients that vary by species. Equations were developed from harvested shrubs at the supplemental field plots.
4 Equation described in Waddell (2002), Harmon and Sexton (1996) and Van Wagner (1968).
5 Foliage (branch) samples from evergreen species were collected at all supplemental plots and the average number of years of growth retained on each branch was recorded to calculate retention time. Samples were also dried and weighed. New shoot growth was recorded for foliage NPP. This information was used to construct species and ecoregion specific lookup tables for the FIA plots
TABLE A5. Equation1 parameters fit to the mean values of each 5 year age bin.
Live Biomass |
Maximum (A) |
Rate (B) |
Shape (C) |
Years to Max2 |
Adj. R2 |
|
BM |
7.1±0.2 |
0.028 ±0.008 |
7.20 ±5.21 |
180 |
| 0.61 |
CR |
33.4±3.0 |
0.007 ±0.004 |
0.87 ±0.42 |
310 |
| 0.39 |
EC |
10.1±0.8 |
0.008 ±0.003 |
1.10 ±0.44 |
310 |
| 0.49 |
KM |
44.2±33.0 |
0.001 ±0.002 |
0.62 ±0.18 |
600+ |
| 0.63 |
SN |
19.4±0.7 |
0.004 ±0.003 |
0.81 ±0.31 |
500 |
| 0.47 |
WC |
26.9±2.0 |
0.005 ±0.002 |
0.86 ±0.20 |
430 |
| 0.69 |
NPP |
Maximum (A) |
Rate (B) |
Decline Age (C) |
|||
BM |
0.30 ±0.01 |
1.30 ±0.10 |
216 ±14 |
125 |
0.57 |
|
CR |
0.82 ±0.03 |
2.29 ±0.38 |
162 ±32 |
60 |
0.17 |
|
EC |
0.38 ±0.01 |
2.39 ±0.46 |
458 ±197 |
155 |
0.38 |
|
KM |
0.65 ±0.01 |
2.37 ±0.35 |
324 ±75 |
110 |
0.31 |
|
SN |
0.51 ±0.01 |
1.92 ±0.22 |
291 ±45 |
125 |
0.42 |
|
WC |
0.54 ±0.01 |
2.09 ±0.15 |
162 ±12 |
65 |
0.39 |
|
Dead |
Maximum |
Rate (B) |
Shape (C) |
Initial |
Decay Rate |
|
BM |
1.39 ±1.10 |
0.05 ±0.04 |
276 ±1576 |
1.83 ±0.9 |
0.01±0.01 |
0.15 |
CR |
- |
- |
- |
- |
- |
- |
EC |
1.68 ±0.10 |
0.02 ±0.01 |
2.51 ±0.01 |
5.46 ±2 |
0.05±0.03 |
0.12 |
KM |
1.57 ±1.93 |
0.015 ±0.02 |
33.00 ±166 |
1.59 ±0.30 |
0.00 ±0.00 |
0.24 |
SN |
2.80 ±0.17 |
0.01 ±0.01 |
1.61 ±.93 |
- |
- |
0.35 |
WC |
9.54 ±5.19 |
0.004 ±0.004 |
3.81 ±5.31 |
3.26 ±1.00 |
0.003 ±0.01 |
0.53 |
Mortality |
Maximum (A) |
Rate (B) |
Shape (C) |
Years to Max2 |
||
BM |
0.10 ±0.00 |
0.035 ±0.015 |
23.2 ±33.00 |
140 |
0.48 |
|
CR |
0.09 ±0.01 |
0.006 ±0.005 |
0.48 ±0.27 |
270 |
0.24 |
|
EC |
0.11 ±0.01 |
0.007 ±0.006 |
1.43 ±1.00 |
270 |
0.26 |
|
KM |
0.29 ±0.27 |
0.001 ±0.003 |
0.61 ±0.23 |
600+ |
0.50 |
|
SN |
0.20 ±0.02 |
0.008 ±0.004 |
1.13 ±0.62 |
250 |
0.34 |
|
WC |
0.17 ±0.01 |
0.008 ±0.002 |
1.20 ±0.34 |
310 |
0.64 |
1Equation Forms: Live Biomass = A*(1 - exp(-B*SA)^C, Dead Biomass = D*exp(-E*SA) + A*(1 - exp(-B*SA))^C, NPP = A*exp(-.5*(ln(SA/C)/B)^2), Mortality = A*(1 - exp(-B*SA)^C where SA is stand age
2Equation solved for the stand age where A is 90% of maximum
TABLE A6. Equation1 parameters fit to upper bounds (99th percentile) of data.
Live Biomass |
Maximum (A) |
Rate (B) |
Shape (C) |
Years to Max2 |
Adj. R2 |
|
BM |
17.8 ±0.9 |
0.013 ±0.005 |
1.44 ±0.67 |
215 |
0.51 |
|
CR |
70.8 ±15.8 |
0.004 ±0.004 |
0.58 ±0.24 |
445 |
0.44 |
|
EC |
22.5 ±1.7 |
0.009 ±0.004 |
1.01 ±0.46 |
255 |
0.39 |
|
KM |
49.1 ±1.9 |
0.010 ±0.003 |
1.14 ±0.34 |
245 |
0.39 |
|
SN |
36.3 ±1.8 |
0.014 ±0.006 |
1.61±0.89 |
195 |
0.69 |
|
WC |
53.2 ±1.8 |
0.008 ±0.002 |
0.93 ±0.21 |
275 |
0.62 |
|
Dead |
Maximum (A) |
Rate (B) |
Shape (C) |
Initial (D) |
Decay Rate (E) |
|
BM |
1.4 ±1.1 |
0.050 ±0.040 |
276.0 ±1577 |
1.83 ±0.87 |
0.004 ±0.008 |
0.15 |
CR |
- |
- |
- |
- |
- |
- |
EC |
4.9 ±0.3 |
0.030 ±0.020 |
5.8 ±11.0 |
17.10 ±5.99 |
0.050 ±0.020 |
0.13 |
KM |
5.0 ±6.0 |
0.020 ±0.020 |
17.6 ±71.0 |
4.58 ±1.22 |
0.001 ±0.005 |
0.19 |
SN |
- |
- |
- |
- |
- |
- |
WC |
18.6 ±3.0 |
0.007 ±0.004 |
3.6 ±5.3 |
13.48 ±4.26 |
0.008 ±0.009 |
0.29 |
NPP |
Maximum (A) |
Rate (B) |
Decline Age (C) |
Years to Max |
||
BM |
0.53 ±0.02 |
1.60 ±0.21 |
176 ±21 |
75 |
0.28 |
|
CR |
1.42 ±0.06 |
2.12 ±0.29 |
110 ±17 |
45 |
0.17 |
|
EC |
0.74 ±0.02 |
2.10 ±0.46 |
278 ±86 |
105 |
0.32 |
|
KM |
1.40 ±0.04 |
1.73 ±0.13 |
144 ±11 |
65 |
0.12 |
|
SN |
1.00 ±0.03 |
1.86 ±0.17 |
179 ±16 |
75 |
0.56 |
|
WC |
1.05 ±0.02 |
1.83 ±0.09 |
104 ±6 |
45 |
0.34 |
|
Mortality |
Maximum (A) |
Rate (B) |
Shape (C) |
Years to Max |
||
BM |
0.27 ±0.01 |
0.020 ±0.010 |
8.89 ±9.60 |
225 |
0.39 |
|
CR |
0.25 ±0.10 |
0.001 ±.004 |
0.02 ±0.10 |
70 |
0.24 |
|
EC |
0.34 ±0.02 |
0.020 ±.010 |
3.58 ±4.05 |
175 |
0.26 |
|
KM |
0.37 ±0.02 |
0.010 ±.005 |
1.15 ±0.62 |
245 |
0.11 |
|
SN |
0.45 ±0.02 |
0.030 ±.020 |
3.36 ±3.53 |
115 |
0.5 |
|
WC |
0.37 ±0.01 |
0.010 ±.004 |
1.38 ±0.55 |
260 |
0.32 |
1Equation Forms: Live Biomass = A*(1 - exp(-B*SA)^C, Dead Biomass = D*exp(-E*SA) + A*(1 - exp(-B*SA))^C, NPP = A*exp(-.5*(ln(SA/C)/B)^2), Mortality = A*(1 - exp(-B*SA)^C where SA is stand age
2Equation solved for the stand age where A is 90% of maximum
TABLE A7. Regression parameters for equations1 fit to mean values of each 5 year bin (maximum of 200 years) by ownership.
Public |
|||||
Live |
Maximum (A) |
Rate (B) |
Shape (C) |
Years to Max2 |
Adj. R2 |
BM |
11.2±4.4 |
0.006±0.005 |
1.04±0.40 |
390 |
0.76 |
CR |
27.0±2.7 |
0.020±0.011 |
1.75±0.98 |
145 |
0.66 |
EC3 |
8.8±1.5 |
0.011±0.009 |
1.36±0.77 |
235 |
0.86 |
KM |
18.1±2.7 |
0.014±0.006 |
1.76±0.67 |
205 |
0.84 |
SN |
14.0±1.2 |
0.020±0.006 |
2.65±1.02 |
165 |
0.86 |
WC |
21.2±2.9 |
0.011±0.005 |
1.38±0.36 |
280 |
0.91 |
NPP |
Maximum (A) |
Rate (B) |
Decline Age (C) |
Years to Max |
|
BM |
0.33±0.12 |
3.16±2.08 |
250+ |
250+ |
0.33 |
CR |
0.81±0.03 |
1.69±0.23 |
87±11 |
45 |
0.45 |
EC |
0.34±0.02 |
1.91±0.41 |
233±115 |
95 |
0.70 |
KM |
0.63±0.03 |
1.50±0.29 |
165±51 |
85 |
0.62 |
SN |
0.58±0.11 |
2.22±0.63 |
250+ |
185 |
0.78 |
WC |
0.55±0.01 |
1.31±0.10 |
96±6 |
55 |
0.79 |
Mortality |
Maximum (A) |
Rate (B) |
Shape (C) |
Years to Max |
|
BM |
0.172±0.076 |
0.009±0.007 |
2.14±1.03 |
335 |
0.84 |
CR |
0.054±0.002 |
0.103±0.042 |
7.41±7.71 |
45 |
0.59 |
EC |
0.093±0.013 |
0.017±0.008 |
2.07±1.01 |
105 |
0.78 |
KM |
0.112±0.014 |
0.020±0.009 |
2.48±1.38 |
155 |
0.74 |
SN |
0.160±0.010 |
0.029±0.009 |
4.05±2.25 |
125 |
0.80 |
WC |
0.170±0.040 |
0.009±0.005 |
1.23±0.36 |
280 |
0.89 |
Private |
|||||
Live |
Maximum (A) |
Rate (B) |
Shape (C) |
Years to Max |
Adj. R2 |
BM |
4.8±0.4 |
0.05±0.03 |
31.1±64.8 |
115 |
0.57 |
CR |
17.1±1.0 |
0.04±0.02 |
3.0±2.2 |
85 |
0.67 |
EC |
7.9±1.1 |
0.03±0.02 |
6.4±11.0 |
135 |
0.32 |
KM |
14.6±2.1 |
0.02±0.02 |
2.0±2.1 |
160 |
0.36 |
SN |
10.2±1.2 |
0.03±0.02 |
4.4±5.8 |
125 |
0.55 |
WC |
16.8±6.6 |
0.01±0.02 |
1.0±1.2 |
240 |
0.42 |
NPP |
Maximum (A) |
Rate (B) |
Decline Age (C) |
Years to Max |
|
BM |
0.27±0.02 |
0.83±0.17 |
143±24 |
105 |
0.60 |
EC |
0.43±0.08 |
1.30±0.54 |
245±187 |
135 |
0.53 |
SN |
0.52±0.03 |
0.91±0.20 |
119±17 |
75 |
0.51 |
CR |
0.96±.04 |
1.45±0.25 |
121±25 |
65 |
0.65 |
WC |
0.66±0.05 |
1.42±0.44 |
104±36 |
55 |
0.27 |
KM |
0.76±.04 |
1.63±0.50 |
100±27 |
45 |
0.13 |
Mortality |
Maximum (A) |
Rate (B) |
Shape (C) |
Years to Max |
|
BM |
0.051±0.005 |
0.063±0.036 |
75±221 |
105 |
0.63 |
CR |
0.093±0.005 |
0.155±0.111 |
152±583 |
45 |
0.51 |
EC |
0.081±0.016 |
0.065±0.064 |
132±664 |
175 |
0.25 |
KM |
0.082±0.010 |
0.070±0.121 |
3.6±13.1 |
55 |
0.17 |
SN |
0.150±0.031 |
0.018±0.021 |
2.5±4.5 |
175 |
0.43 |
WC |
0.180±0.081 |
0.006±0.008 |
1.6±1.3 |
250+ |
0.32 |
1Equation Forms: Live Biomass = A*(1 - exp(-B*SA)^C, NPP = A*exp(-.5*(ln(SA/C)/B)^2), Mortality = A*(1 - exp(-B*SA)^C where SA is stand age
2Equation solved for the stand age where A is 90% of maximum
3Data included for age groups up to 250 (live biomass only) for EC and BM because values were still significantly increasing in both ownerships
TABLE A8. Regression parameters for equations1 fit to mean values of each 5 year bin by forest type. Regressions could not be fit to some forest types in some ecoregions as there were not enough age classes with data.
1: Douglas-fir/Hemock |
|||||
Live |
Maximum (A) |
Rate (B) |
Shape (C) |
Years to Max2 |
Adj. R2 |
BM |
9.1±0.5 |
0.023±0.010 |
5.95±6.55 |
175 |
0.31 |
CR |
33.4±2.1 |
0.012±0.006 |
1.23±0.66 |
210 |
0.41 |
EC |
14.9±2.3 |
0.006±0.005 |
0.91±0.52 |
345 |
0.34 |
KM |
42.4±24.9 |
0.001±0.002 |
0.65±0.21 |
600+ |
0.58 |
SN |
17.7±0.9 |
0.014±0.006 |
1.77±1.03 |
205 |
0.37 |
WC |
28.0±2.0 |
0.005±0.002 |
0.78±0.18 |
420 |
0.69 |
NPP |
Maximum (A) |
Rate (B) |
Decline Age (C) |
Years to Max |
|
BM |
0.32±0.01 |
1.20±0.19 |
224±21 |
130 |
0.20 |
CR |
0.78±0.03 |
2.55±0.48 |
159±34 |
50 |
0.12 |
EC |
0.51±0.03 |
2.25±0.72 |
472±322 |
170 |
0.23 |
KM |
0.64±0.01 |
2.27±0.34 |
320±70 |
120 |
0.28 |
SN |
0.56±0.01 |
1.71±0.18 |
228±24 |
110 |
0.31 |
WC |
0.56±0.01 |
2.03±0.13 |
149±10 |
60 |
0.43 |
Mortality |
Maximum (A) |
Rate (B) |
Shape (C) |
Years to Max |
|
BM |
0.16±0.01 |
0.023±0.011 |
7.13±8.47 |
185 |
0.30 |
CR |
0.10±0.02 |
0.004±0.005 |
0.53±0.30 |
430 |
0.26 |
EC |
0.21±0.02 |
0.012±0.008 |
2.05±1.84 |
250 |
0.27 |
KM |
0.21±0.05 |
0.003±0.003 |
0.74±0.27 |
600+ |
0.49 |
SN |
0.21±0.01 |
0.02±0.010 |
1.97±1.58 |
150 |
0.25 |
WC |
0.17±0.01 |
0.008±0.002 |
1.15±0.34 |
310 |
0.62 |
2: Cedar/Larch |
|||||
Live |
Maximum (A) |
Rate (B) |
Shape (C) |
Years to Max |
Adj. R2 |
BM |
8.4±0.5 |
0.044±0.072 |
2.73±8.00 |
600+ |
0.06 |
NPP |
Maximum (A) |
Rate (B) |
Decline Age (C) |
Years to Max |
|
CR |
0.97±0.06 |
1.89±0.47 |
118±29 |
50 |
0.23 |
Mortality |
Maximum (A) |
Rate (B) |
Shape (C) |
Years to Max |
|
CR |
0.08±0.01 |
0.169±0.188 |
249±1605 |
50 |
0.22 |
KM |
0.21±0.05 |
0.003±0.003 |
0.74±0.27 |
600+ |
0.49 |
3: Juniper |
|||||
Live |
Maximum (A) |
Rate (B)2 |
Shape (C) |
Years to Max |
Adj. R2 |
BM |
3.0±0.3 |
0.018±0.009 |
2.68±2.17 |
190 |
0.50 |
EC |
4.5±2.6 |
0.005±0.050 |
0.15±0.57 |
140 |
0.00 |
NPP |
Maximum (A) |
Rate (B) |
Decline Age (C) |
Years to Max |
|
BM |
0.16±0.01 |
1.56±0.30 |
233±48 |
115 |
0.35 |
Mortality |
Maximum (A) |
Rate (B)2 |
Shape (C) |
Years to Max |
|
BM |
0.03±0.00 |
0.023±0.018 |
4.12±5.88 |
160 |
0.29 |
4: Spruce – NONE |
|||||
5: Pine |
|||||
Live |
Maximum (A) |
Rate (B)2 |
Shape (C) |
Years to Max |
Adj. R2 |
BM |
9.7±3.9 |
0.003±0.004 |
0.54±0.26 |
580 |
0.43 |
EC |
9.2±0.9 |
0.005±0.002 |
0.75±0.21 |
410 |
0.64 |
KM |
8.0±3.7 |
0.005±0.010 |
0.61±0.61 |
370 |
0.11 |
SN |
8.3±0.4 |
0.026±0.014 |
1.84±1.47 |
120 |
0.29 |
WC |
8.9±0.4 |
0.082±0.044 |
21.91±41.0 |
70 |
0.38 |
NPP |
Maximum (A) |
Rate (B) |
Decline Age (C) |
Years to Max |
|
BM |
0.32±0.01 |
2.74±0.97 |
422±310 |
120 |
0.18 |
EC |
0.33±0.01 |
2.99±0.60 |
527±283 |
130 |
0.43 |
KM |
0.29±0.03 |
3.41±3.74 |
170±236 |
35 |
0.00 |
SN |
0.35±0.01 |
2.73±0.80 |
227±102 |
65 |
0.09 |
WC |
0.41±0.02 |
1.85±0.48 |
133±32 |
55 |
0.07 |
Mortality |
Maximum (A) |
Rate (B)2 |
Shape (C) |
Years to Max |
|
BM |
0.21±1.17 |
0.001±0.006 |
0.50±0.32 |
600+ |
0.34 |
EC |
0.07±0.00 |
0.011±0.006 |
0.95±0.51 |
240 |
0.33 |
KM |
0.05±0.01 |
0.008±0.012 |
0.72±0.77 |
260 |
0.10 |
SN |
0.08±0.01 |
0.023±0.016 |
1.76±1.71 |
130 |
0.20 |
WC |
0.09±0.01 |
0.030±0.017 |
3.26±3.36 |
120 |
0.35 |
6: Hardwoods |
|||||
Live |
Maximum (A) |
Rate (B)2 |
Shape (C) |
Years to Max |
Adj. R2 |
CR |
30.0±6.3 |
0.004±0.003 |
0.67±0.23 |
500 |
0.58 |
KM |
23.1±2.1 |
0.007±0.004 |
1.06±0.43 |
300 |
0.51 |
SN |
13.8±0.8 |
0.035±0.014 |
9.71±10.71 |
130 |
0.50 |
WC |
9.7±1.2 |
0.137±0.208 |
95±677 |
50 |
0.18 |
NPP |
Maximum (A) |
Rate (B) |
Decline Age (C) |
Years to Max |
|
CR |
0.98±0.67 |
2.48±0.78 |
355±265 |
115 |
0.28 |
EC |
0.70±0.12 |
1.08±0.49 |
231±85 |
145 |
0.10 |
KM |
0.90±0.03 |
1.94±0.38 |
294±87 |
125 |
0.27 |
SN |
0.65±0.02 |
1.44±0.24 |
280±59 |
145 |
0.52 |
WC |
0.72±0.07 |
1.00±0.16 |
90±13 |
55 |
0.45 |
Mortality |
Maximum (A) |
Rate (B) |
Shape (C) |
Years to Max |
|
KM |
0.11±0.01 |
0.010±0.007 |
0.92±0.57 |
230 |
0.26 |
SN |
0.13±0.01 |
0.035±.018 |
6.51±8.10 |
120 |
0.35 |
7: Non-Stocked |
|||||
Live |
Maximum (A) |
Rate (B) |
Shape (C) |
Years to Max |
Adj. R2 |
BM |
2.8±0.4 |
0.007±0.004 |
1.16±0.51 |
350 |
0.65 |
EC |
2.3±0.3 |
0.010±0.007 |
0.90±0.53 |
230 |
0.36 |
KM |
3.4±2.8 |
0.004±0.015 |
0.67±0.89 |
490 |
0.24 |
SN |
2.0±0.3 |
0.019±0.019 |
1.20±1.38 |
140 |
0.25 |
NPP |
Maximum (A) |
Rate (B) |
Decline Age (C) |
Years to Max |
|
BM |
0.13±0.01 |
1.59±0.32 |
231±44 |
125 |
0.27 |
EC |
0.15±0.01 |
2.13±0.58 |
180±60 |
70 |
0.08 |
SN |
0.14±0.01 |
1.82±0.38 |
128±29 |
55 |
0.22 |
Mortality |
Maximum (A) |
Rate (B)2 |
Shape (C) |
Years to Max |
|
BM |
0.37±0.01 |
0.007±0.006 |
1.34±0.887 |
370 |
0.46 |
EC |
0.03±0.04 |
0.002±0.009 |
0.474±0.477 |
600+ |
0.13 |
SN |
.03±.01 |
0.058±0.050 |
19.07±53.55 |
230 |
0.24 |
1Equation Forms: Live Biomass = A*(1 - exp(-B*SA)^C, NPP = A*exp(-.5*(ln(SA/C)/B)^2), Mortality = A*(1 - exp(-B*SA)^C where SA is stand age
2Equation solved for the stand age where A is 90% of maximum
TABLE A9. Top ranked explanatory variables (from model weights) across entire study region (ecoregion, ownership, or forest type) and within each ecoregion (ownership or forest type), after accounting for age.
Region |
Live Biomass |
Dead Biomass |
NPP |
Mortality* |
Study Area |
Forest Type |
Ecoregion |
Ecoregion |
Forest Type |
BM |
Forest Type |
Forest Type |
Forest Type |
Forest Type |
CR |
Forest Type |
Forest Type |
Forest Type |
Owner |
EC |
Forest Type |
Forest Type |
Forest Type |
Forest Type |
KM |
Forest Type |
Forest Type |
Forest Type |
Forest Type |
SN |
Forest Type |
Forest Type |
Forest Type |
Forest Type |
WC |
Forest Type |
Forest Type |
Forest Type |
Forest Type |
*Effects of each factor on mortality could only be assessed for stands <= 250 years because transformations failed to adjust for non-normal distribution of all data points.
LITERATURE CITED
Campbell, J. L., O. J. Sun, and B. E. Law. 2004. Supply-side controls on soil respiration among Oregon forests. Global Change Biology 10:1857–1869.
Forest Products Laboratory. 1974. Wood Handbook: Wood as an engineering material. Forest Products Laboratory, Madison, WI, p. 72.
Harmon, M. E., and J. Sexton. 1996. Guidelines for Measurements of Woody Debris in Forest Ecosystems. Publication No. 20. US LTER Network Office, University of Washington, Seattle, WA:93pp.
Keyes, M. R., and C. C. Grier. 1981. Above- and belowground net production in 40-year-old Douglas-fir stands on low and high productivity sites. Canadian Journal of Forest Research 11:599–605.
Maeglin, R. R., and H. E. Wahlgren. 1972. Western Wood Density Survey: Report Number 2. USDA Forest Service Research Paper FPL-183.
Van Tuyl, S., B. E. Law, D. P. Turner, and A. I. Gitelman. 2005. Variability in net primary production and carbon storage in biomass across Oregon forests--an assessment integrating data from forest inventories, intensive sites, and remote sensing. Forest Ecology and Management 209:273–291.
Van Wagner, C. E. 1968. The line-intersect method in furest fuel sampling. Forest Science 14:20–26.
Waddell, K. L. 2002. Sampling coarse woody debris for multiple attributes in extensive resource inventories. Ecological Indicators 1:139–153.