Repository logo
 

Competition from neighboring trees in eucalyptus monoculture and in mixed species native forest restoration plantations

Simple item page
dc.contributor.authorLuu, Trung Canh, author
dc.contributor.authorBinkley, Dan, advisor
dc.contributor.authorRocca, Monique, committee member
dc.contributor.authorLaituri, Melinda, committee member
dc.contributor.authorKelly, Eugene F., committee member
dc.date.accessioned2007-01-03T08:10:02Z
dc.date.available2007-01-03T08:10:02Z
dc.date.issued2012
dc.description.abstractCompetition has been recognized as a crucial factor in determining stand structure and productivity. However, competition is not a simple pattern. Its intensity and importance vary with structures of neighboring tree size and composition, and nutrient gradients. Our studies examined the influence of neighborhood uniformity on growth of individual trees in Eucalyptus monoculture, and competition between pioneer and non-pioneer species in mixed native species restoration plantations by developing a number of alternative neighborhood growth models. Our analyses showed that neighborhood uniformity of tree sizes had significant effects on growth of individual clonal Eucalyptus trees and these effects increased with increasing age of stand because stand and neighborhood tree size became less uniform with age. For competition from pioneer trees to non-pioneer trees, competition from neighboring trees had strong effects on the growth of individual non-pioneer trees, and the intensity of competition from neighboring trees varied with focal tree species guild and degrees of silviculture interventions. For example, non-pioneer legumes experienced competition as a function of neighboring tree sizes and distances only. Non-pioneer non-legumes experienced competition as a function of neighboring tree sizes and distances, and also by the identity of neighboring species guilds. The non-pioneer non-legumes experienced stronger competition in the intensive silviculture treatment, probably resulting from the neighboring species guild of pioneer non-legumes, unlike the non-pioneer legumes. Although intensive silviculture initially enhanced forest stand productivity (both density and tree size), strong competition from fast-growing lowered the later growth of individual non-pioneer trees. Our analyses suggested implications to: (i) increase and maintain stand uniformity to increase stand stem productivity and quality; and (ii) control strong, even exclusive completion in some cases from pioneer trees to non-pioneer trees through matching species to be mixed and managing their abundance.
dc.format.mediumborn digital
dc.format.mediumdoctoral dissertations
dc.identifierLuu_colostate_0053A_10953.pdf
dc.identifierETDF2012400256FRWS
dc.identifier.urihttp://hdl.handle.net/10217/67572
dc.languageEnglish
dc.language.isoeng
dc.publisherColorado State University. Libraries
dc.relation.ispartof2000-2019
dc.rightsCopyright and other restrictions may apply. User is responsible for compliance with all applicable laws. For information about copyright law, please see https://libguides.colostate.edu/copyright.
dc.subjectcompetition
dc.subjectpioneer species
dc.subjectnon-pioneer species
dc.subjectnative species
dc.titleCompetition from neighboring trees in eucalyptus monoculture and in mixed species native forest restoration plantations
dc.typeText
dcterms.rights.dplaThis Item is protected by copyright and/or related rights (https://rightsstatements.org/vocab/InC/1.0/). You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).
thesis.degree.disciplineForest and Rangeland Stewardship
thesis.degree.grantorColorado State University
thesis.degree.levelDoctoral
thesis.degree.nameDoctor of Philosophy (Ph.D.)

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Luu_colostate_0053A_10953.pdf
Size:
2.89 MB
Format:
Adobe Portable Document Format
Description:
Download

Collections

2000-2019
Theses and Dissertations