Claim · model-written summary
Immediate consideration should be given to utilizing the non-merchantable top because its pulp is relatively high in yield and quality.
- Taxon
- Lodgepole pine
Pinus contortae0 - Organ / stage
- non-merchantable tope1
- Outcome
- its utilizatione1
Not reportedMaterialGeneCompoundInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lodgepole pine (Pinus contorta Dougl. var. latifolia Engelm.) is a species of considerable importance to the forest economies of Alberta”
e1“Because the yield and quality of pulp from the non-merchantable top was found to be relatively high and because quantity of this component per acre may be substantial in some stands, immediate consideration should be given to its utilization”
Title
Dry-matter production and complete-tree utilization of lodgepole pine in Alberta
Johnstone, Wayne David cIRcle (University of British Columbia) 2011. doi:10.14288/1.0101020
Other claims from this paper (17)
- Association Of the variables tested, D²H (tree diameter squared times total height) was most closely associated with component dry-weights.
- Association D²H gave reliable estimates of tree and component weights.
- Observation Logarithmic equations gave systematic underestimates of tree and component weights.
- Association Total tree and component biomass per acre was positively correlated with basal area per acre.
- Association Total tree and component biomass per acre was inversely related to number of stems per acre on a given site.
- Association BA•H (stand basal area times mean stand height) was closely associated with most component dry-weights per acre.
- Association The above-ground total stand crop of young lodgepole pine stands was substantially higher than that of similarly aged Populus stands on similar sites.
- Association Volume growth was highly correlated with the amount of foliage.
- Association Volume growth efficiency (growth per unit of foliage) was not related to tree size.
- Observation A large amount of within-tree variation in growth was not accounted for by the growth-foliage relationships.
- Intervention effect Thinning did not appear to affect the pattern of growth of the trees examined.
- Association Tree size was significantly positively related to the unscreened yield of pulp from the full bole only.
- Association Tree size or growth rate was not significantly related to pulp quality for any component.
- Observation The yield and quality of pulp from the non-merchantable top were relatively high.
- Observation The yield and quality of pulp from the root-stump system were high.
- Observation The yield and quality of pulp from branchwood were low.
- Recommendation Utilization of small-diameter trees for pulp depends on economic harvesting and processing rather than pulp yield and quality.