USDA Forest ServiceSkip navigational links  
Northern Global Change Research Program
Go to:AK Go to:AL Go to:AR
Go to:AZ Go to:CA Go to:CO
Go to:CT Go to:DE Go to:FL
Go to:GA Go to:HI Go to:IA
Go to:ID Go to:IL Go to:IN
Go to:KS Go to:KY Go to:LA
Go to:MA Go to:MD Go to:ME
Go to:MI Go to:MN Go to:MO
Go to:MS Go to:MT Go to:NC
Go to:ND Go to:NE Go to:NH
Go to:NJ Go to:NM Go to:NV
Go to:NY Go to:OH Go to:OK
Go to:OR Go to:PA Go to:RI
Go to:SC Go to:SD Go to:TN
Go to:TX Go toUT Go to:VA
Go to:VT Viewing:WA Go to:WI
Go to:WV Go to:WY  

EPA Logo
 
Norhtern Global Change Research Program Logo
United States Department of Agriculture Forest Service. USDA logo which links to the department's national site. Forest Service logo which links to the agency's national site.
 

Publications & Products

Carbon in United States Forests and Wood Products, 1987-1997: State-by-State Estimates
by Richard A. Birdsey & George M. Lewis

Washington Estimate for 1987-1997

Table 1. Area by land class (1000 ac).
Land class
1987
1992
1997
Average Annual Change
 
1987-1992
1992-1997
1987-1997
Timberland
17,514
17,466
17,418
-10
-10
-10
Other forest land
1,710
1,345
980
-73
-73
-73
Reserved timberland
3,297
3,396
3,495
20
20
20
TOTAL
22,521
22,206
21,892
-63
-63
-63
 
Table 2. Area of forest land by forest type (1000 ac).
Forest type
1987
1992
1997
Average Annual Change
 
1987-1992
1992-1997
1987-1997
Douglas-fir
10,224
9,270
8,316
-191
-191
-191
Ponderosa pine
2,656
2,385
2,114
-54
-54
-54
Western white pine
7
11
14
1
1
1
Fir-spruce
1,458
2,020
2,582
112
112
112
Hemlock-Sitka spruce
3,594
4,313
5,033
144
144
144
Larch
586
401
217
-37
-37
-37
Lodgepole pine
833
796
759
-7
-7
-7
Redwood
0
0
0
0
0
0
Other Hardwoods
2,288
2,190
2,093
-19
-19
-19
Other forest types
478
316
155
-32
-32
-32
Pinyon-juniper
0
1
2
0
0
0
Chaparral
0
83
165
17
17
17
Non-stocked
398
420
443
4
4
4
TOTAL
22,521
22,206
21,892
-63
-63
-63
 
Table 3. Total carbon stock on forest land and annual change by forest type (MMTC).
Forest type
1987
1992
1997
Average Annual Change
 
1987-1992
1992-1997
1987-1997
Douglas-fir
1,151.0
1,054.1
953.4
-19.39
-20.13
-19.76
Ponderosa pine
206.9
187.4
167.3
-3.91
-4.01
-3.96
Western white pine
0.7
0.8
1.0
0.03
0.03
0.03
Fir-spruce
167.6
224.2
280.1
11.31
11.19
11.25
Hemlock-Sitka spruce
395.4
470.1
543.3
14.93
14.64
14.79
Larch
58.0
41.3
22.9
-3.33
-3.68
-3.51
Lodgepole pine
60.5
59.5
58.4
-0.20
-0.22
-0.21
Redwood
0.0
0.0
0.0
0.00
0.00
0.00
Other Hardwoods
197.6
197.7
198.0
0.02
0.06
0.04
Other forest types
43.5
28.3
12.9
-3.03
-3.09
-3.06
Pinyon-juniper
0.0
0.1
0.1
0.01
0.02
0.01
Chaparral
0.0
6.9
13.7
1.37
1.37
1.37
Non-stocked
28.1
30.5
33.0
0.48
0.49
0.48
TOTAL
2,309.3
2,300.8
2,284.1
-1.71
-3.33
-2.52
 
Table 4. Total carbon stock on forest land and annual change by accounting component (MMTC).
Accounting component
1987
1992
1997
Average Annual Change
 
1987-1992
1992-1997
1987-1997
Biomass
860.3
842.7
825.2
-3.52
-3.51
-3.52
Forest floor and coarse woody debris
369.4
367.1
364.3
-0.47
-0.56
-0.51
Soils
891.1
887.1
883.0
-0.82
-0.82
-0.82
Wood products and landfills
188.5
203.9
211.7
3.09
1.56
2.33
TOTAL
2,309.3
2,300.8
2,284.1
-1.71
-3.33
-2.52
 
Table 5. Total carbon stock on forest land and annual change by owner (MMTC).
Owner group
1987
1992
1997
Average Annual Change
 
1987-1992
1992-1997
1987-1997
National Forest
828.7
837.9
843.1
1.85
1.04
1.44
Other Public
468.5
449.3
429.6
-3.84
-3.95
-3.89
Forest Industry
543.0
526.0
508.2
-3.40
-3.57
-3.49
Other Private
469.0
487.5
503.2
3.69
3.15
3.42
TOTAL
2,309.3
2,300.8
2,284.1
-1.71
-3.33
-2.52
 
Table 6. Change in total carbon stock on forest land attributed to land use change (MMTC).
Accounting component
1987
1992
1997
Average Annual Change
 
1987-1992
1992-1997
1987-1997
Biomass
0.0
-4.7
-9.4
-0.93
-0.94
-0.94
Forest floor and coarse woody debris
0.0
-2.5
-5.0
-0.50
-0.50
-0.50
Soils
0.0
-3.1
-6.1
-0.61
-0.61
-0.61
Wood products and landfills
0.0
2.8
6.0
0.57
0.64
0.60
TOTAL
0.0
-7.4
-14.4
-1.47
-1.41
-1.44

 


Page Contact: Kevin McCullough