| dc.contributor.advisor | carmean, willard h. | |
| dc.contributor.author | deschamps, kerry c. | |
| dc.date.accessioned | 2017-06-06t13:07:09z | |
| dc.date.available | 2017-06-06t13:07:09z | |
| dc.date.created | 1991 | |
| dc.date.issued | 1991 | |
| dc.identifier.uri | http://knowledgecommons.lakeheadu.ca/handle/2453/2153 | |
| dc.description.abstract | height-growth and site-index curves were developed for estimating site
quality of trembling aspen {populus tremuloides michx.) in north central ontario.
these curves were developed from stem analysis data of dominant and
codominant, uninjured aspen trees obtained from 89 plots covering a wide range
of site quality in north central ontario. the actual height-growth patterns were
modelled using several non-linear biological growth models: chapman -
richards function, modified weibull function, monserud logistic function and an
expansion of the chapman - richard function. in addition, a new height-growth
model was developed using a similar approach to that of cieszewski and bella.
height-growth patterns of aspen varied with level of site-index. height
growth curves show an almost linear growth pattern for poor sites (si < 16 m)
to a highly curvilinear pattern on good sites (si > 24 m). medium sites (s116-24
m) show a rapid linear surge of height growth before 40 years followed by a
slowing curvilinear pattern.
height-growth curves, site-index curves and a site-index prediction
equation were constructed from trembling aspen stem analysis data. goodness
of fit tests were computed using a modified chi-square test. in addition, the
accuracy of the height-growth curves, site-index curves and site-index prediction
equation were tested using independent stem analysis data from 19 plots
supplied by the ontario ministry of natural resources. comparisons with the
independent data source shows close agreement; the 95% site index error
prediction interval for the site-index curves and the site-index prediction equation
are 0.19 ± 1.37 and 0.21 ± 1.35 respectively. | |
| dc.language.iso | en_us | |
| dc.subject | aspen ontario | |
| dc.subject | site index (forestry) ontario | |
| dc.subject | polymorphism | |
| dc.subject | stem analysis | |
| dc.subject | non-linear regression | |
| dc.title | height growth and site index of trembling aspen in north central ontario | |
| dc.type | thesis | |
| etd.degree.name | master of science | |
| etd.degree.level | master | |
| etd.degree.discipline | forestry and the forest environment | |
| etd.degree.grantor | 阿根廷vs墨西哥竞猜
| |
| dc.contributor.committeemember | hazenberg, g. | |
| dc.contributor.committeemember | benson, c. | |
