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dc.contributor.authorVittoz, P.en
dc.contributor.authorStewart, Glenn H.en
dc.contributor.authorDuncan, Richard P.en
dc.date.accessioned2008-05-26T22:28:08Z
dc.date.issued2001-06en
dc.identifier.citationVitoz, P., Stewart, G. H., & Duncan, R. P. (2001). Earthquake impacts in old-growth Nothofagus forests in New Zealand. Journal of Vegetation Science, 12(3), 417-426.en
dc.identifier.issn1100-9233en
dc.identifier.urihttps://hdl.handle.net/10182/504
dc.description.abstractSix stands located on different land forms in mixed old-growth Nothofagus forests in the Matiri Valley (northwest of South Island, New Zealand) were sampled to examine the effects of two recent large earthquakes on tree establishment and tree-ring growth, and how these varied across land forms. 50 trees were cored in each stand to determine age structure and the cores were cross-dated to precisely date unusual periods of radial growth. The 1968 earthquake (M = 7.1, epicentre 35 km from the study area) had no discernible impact on the sampled stands. The impact of the 1929 earthquake (M = 7.7, epicentre 20 km from the study area) varied between stands, depending on whether or not they had been damaged by soil or rock movement. In all stands, the age structures showed a pulse of N. fusca establishment following the 1929 earthquake, with this species dominating establishment in large gaps created by landslides. Smaller gaps, created by branch or tree death, were closed by both N. fusca and N. menziesii. The long period of releases (1929-1945) indicates that direct earthquake damage was not the only cause of tree death, and that many trees died subsequently most likely of pathogen attack or a drought in the early 1930s. The impacts of the 1929 earthquake are compared to a storm in 1905 and a drought in 1974-1978 which also affected forests in the region. Our results confirm that earthquakes are an important factor driving forest dynamics in this tectonically active region, and that the diversity of earthquake impacts is a major source of heterogeneity in forest structure and regeneration.en
dc.format.extent417-426en
dc.language.isoenen
dc.publisherOpulus Pressen
dc.relationThe original publication is available from - Opulus Press - http://www.opuluspress.se/index.php?page=shop/article_journal&product_id=8&Itemid=56&option=com_phpshop&issue=246&nr=-1en
dc.rightsCopyright © International Association of Vegetation Science, Opulus Pressen
dc.subjectearthquakesen
dc.subjectdendro-ecologyen
dc.subjectdisturbanceen
dc.subjectforest diebacken
dc.subjectlandslideen
dc.subjectNothofagus fuscaen
dc.subjectNothofagus menziesiien
dc.subjectpopulation dynamicsen
dc.subjectEcologyen
dc.titleEarthquake impacts in old-growth Nothofagus forests in New Zealanden
dc.typeJournal Article
dc.subject.marsdenFields of Research::270000 Biological Sciences::270700 Ecology and Evolution::270703 Terrestrial ecologyen
lu.contributor.unitLincoln Universityen
lu.contributor.unitBio-Protection Research Centreen
lu.contributor.unitFaculty of Environment, Society and Designen
lu.contributor.unitDepartment of Environmental Managementen
dc.subject.anzsrc0607 Plant Biologyen
dc.subject.anzsrc0602 Ecologyen
dc.subject.anzsrc0705 Forestry Sciencesen
dc.relation.isPartOfJournal of Vegetation Scienceen
pubs.organisational-group/LU
pubs.organisational-group/LU/BPRC
pubs.organisational-group/LU/Faculty of Environment, Society and Design
pubs.organisational-group/LU/Faculty of Environment, Society and Design/DEM
pubs.publication-statusPublisheden
pubs.publisher-urlhttp://www.opuluspress.se/index.php?page=shop/article_journal&product_id=8&Itemid=56&option=com_phpshop&issue=246&nr=-1en
pubs.volume12en


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