Modeling the biomass partitioning of loblolly pine grown in a miniature-scale plantation

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dc.contributor.authorRussell, Matthew B.en
dc.contributor.committeechairBurkhart, Harold E.en
dc.contributor.committeememberSeiler, John R.en
dc.contributor.committeememberAmateis, Ralph L.en
dc.contributor.departmentForestryen
dc.date.accessioned2014-03-14T20:31:37Zen
dc.date.adate2008-03-21en
dc.date.available2014-03-14T20:31:37Zen
dc.date.issued2008-01-28en
dc.date.rdate2011-01-03en
dc.date.sdate2008-02-08en
dc.description.abstractStand conditions influence the partitioning of biomass to stem, foliage, branch, and root components. Using data from 4 to 6-year old loblolly pine (Pinus taeda L.) trees grown in a miniature-scale spacing trial, this study determined the effect of initial planting density on the biomass partitioning of loblolly pine. An analysis of covariance concluded that density did not have a significant effect on the relative amount of biomass in aboveground components.Some measures of partitioning tradeoffs (such as root: shoot ratio) showed a significant positive slope when regressed against trees per hectare. Systems of linear equations were developed based on tree measurements and age, and additivity was specified. By taking into account contemporaneous correlations among tree components, seemingly unrelated regression (SUR) methodologies led to efficient parameter estimates. When compared to studies with mature trees at operational scales, results from the miniature-scale trees showed similar trends. Stem and woody roots were 70 and 14% of total mass, respectively. Since these miniature-scale trees were physiologically young at time of harvest, allocation of mass to foliage continued to be a priority, occupying 10% of total mass.en
dc.description.degreeMaster of Scienceen
dc.identifier.otheretd-02082008-112800en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-02082008-112800/en
dc.identifier.urihttp://hdl.handle.net/10919/31176en
dc.publisherVirginia Techen
dc.relation.haspartMB_Russell_etd.pdfen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectseemingly unrelated regressionen
dc.subjectadditivityen
dc.subjectplanting densityen
dc.subjectlive crown ratioen
dc.subjectPinus taeda L.en
dc.titleModeling the biomass partitioning of loblolly pine grown in a miniature-scale plantationen
dc.typeThesisen
thesis.degree.disciplineForestryen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen

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