STOCKABILITY, GROWTH, AND YIELD OF THE CIRCUMBOREAL
ASPENS
(POPULUS-TREMULOIDES MICHX, P-TREMULA L)
PERALA DA, LEARY RA, CIESZEWSKI CJ
USDA FOREST SERVICE NORTH CENTRAL FOREST EXPERIMENT STATION RESEARCH PAPER
(321): 1-24 1995
Abstract:
We show elsewhere (Perala et al., in review) that quaking aspen (Populus
tremuloides Michx.) and its Eurasian counterpart, P. tremula L., form a single
circumpolar superspecies when viewed from the standpoint of self-thinning rates
and stockability. Here we expand our examination to the d.b.h.-age
relationships and to growth series measurements from permanent plots of aspen
stands of varying densities reported in the literature. We also attempt to
account for the curvilinear trend in the self-thinning relationship we detected
in young stands that forced us in our first analysis to truncate our usable
data set to older stands. The resulting equations satisfy the need for a
framework to study variation in aspen stockability. The equations can give
useful regional estimates as well, but will need refitting to local data to
satisfy needs for finer resolution.
Author Keywords:
SURVIVAL, SELF THINNING, SIZE DENSITY, LIMITING RELATIONSHIP
KeyWords Plus:
Addresses:
N CENT FOREST EXPT STN,GRAND RAPIDS,MI
Cieszewski CJ, Univ Georgia, Sch Forest Resources, Athens, GA 30602 USA
Univ Georgia, Sch Forest Resources, Athens, GA 30602 USA
Publisher:
USDA NC FOREST EXP STATION, ST PAUL
IDS Number:
QT063
ISSN:
0888-9686