FRDA Report: Black Cottonwood and Balsam Poplar Managers ...

TABLE 19. Currently suggested stocking standards for interior cottonwood and paper birch as endorsed by the
Kamloops and Cariboo forest regions (Robinson 1994; Robinson and Eriksen 1994).These standards
are assumed to be the same as those for aspen intended for oriented strandboard end product.
Broadleaf stocking criteria
corresponding to varying conifer
stocking Target Conifer Stocking
400
stems/haa 600
stems/haa 1000
1200
stems/ha stems/ha
Target total stems/ha 600 1000 1600 2000
Minimum preferred and acceptable
stems/ha at maximum regeneration
delay and at free-growing stage
Minimum preferred stems/ha at
maximum regeneration delay and at
free-growing stage
400 500 1000 1200
400 400 800 1000
Minimum inter-tree distance 2.0 m 2.0 m 2.0 m 2.0 m
Minimum free-growing height 0.8 m 1.0 m 1.2 m 1.4 m
Maximum regeneration delay 7 yr 7 yr 7 yr 7 yr
% tree height over competing
vegetation b
125 or 150% 125 or 150% 125 or 150% 125 or 150%
Earliest free-growing date 12 yr 12 yr 12 yr 12 yr
Latest free-growing date 15 yr 15 yr 15 yr 15 yr
a
Pure deciduous regeneration is not normally expected on these site series.
b
This value is the same as for conifer stocking standards and is either 125% or 150%, depending on biogeoclimatic zone.
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