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Lodgepole Pine at Crater Lake: History and Management of the Forest Structure

 

Appendix G

 

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Tree density (stems/l1) by size classes for ten plant communities (from Zeigler, 1978).

Pinus contorta/
Carex-Stipa
 
Species
  Diameter Class (cm)
Pinus contorta/
Carex-Lupinus
Abies magnifica var.
shastensis-Tsuga
mertensiana/
Carex-Lupinus
Abies lasiocarpa/
Haplopappus/
Aster-Elymus
Tsuga mertensiana/
Vaccinium
Pinus contorta
    0-4.9 3460 2678 1672 2406 2959
    5.0-9.9 480 622 534 364 429
    10.0-19.9 440 512 436 336 450
    20.0-29.9 186 222 266 216 166
    30.0-44.9 86 82 154 136 80
    >45.0 19 1 220 24
Abies magnifica
var. 
shastensis

    0-4.9 19 30 1760 1938 783
    5.0-9.9

52 54 37
    10.0-19.9
3 26 16 7
    20.0-29.9


11 7
    30.0-44.9


2
    >45.0




Tsuga mertensiana
    0-4.9 89 38 750 136 307
    10.0-19.9 24 3 154 6 53
    20.0-29.9 29
52 12 103
    30.0-44.9 5
1 2 53
    >45.0

1
20
Pinus albicaulus
    0-4.9 46 7


    5.0-9.9
9


    10.0-19.9 1



Pinus monticola
    0-4.9
3

86
    5.0-9.9




    10.0-19.9



7
    20.0-29.9




    30.0-44.9




    >45.0




Pinus concolor
    0-4.9




    5.0-9.9




    10.0-19.9




Pinus ponderosa
    0-4.9




 

 

 
Species
  Diameter Class (cm)
Abies concolor/
Bromus carinatus-Lupinus
Mixed Conifer/
Arctostaphylos-
Purshia/Carex
Abies lasiocarpa/
Collomia-Lathyrus
Pinus contorta/
Purshia/Stipa
Pinus contorta
    0-4.9 1950 660 560 1440
    5.0-9.9 240 180 300 520
    10.0-19.9 228 160 180 920
    20.0-29.9 150 100 40 440
    30.0-44.9 130 140 40
    >45.0

80
Abies magnifica
var. 
shastensis
    0-4.9 10 60 540
    5.0-9.9

80
    10.0-19.9

60
    20.0-29.9

20
    30.0-44.9



    >45.0



Tsuga mertensiana
    0-4.9



    10.0-19.9



    20.0-29.9



    30.0-44.9



    >45.0



Pinus albicaulus
    0-4.9



    5.0-9.9



    10.0-19.9



Pinus monticola
    0-4.9
20

    5.0-9.9



    10.0-19.9



    20.0-29.9



    30.0-44.9



    >45.0



Pinus concolor
    0-4.9 2690


    5.0-9.9 70


    10.0-19.9 20


Pinus ponderosa
    0-4.9
260

 

 

 

 

 

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