Does initial spacing influence crown and hydraulic architecture of Eucalyptus marginata?

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Show simple item record Grigg, AH Macfarlane, C Evangelista, C Eamus, D Adams, MA 2010-07-15T07:27:01Z 2008-05
dc.identifier.citation Tree Physiology, 2008, 28 (5), pp. 753 - 760
dc.identifier.issn 0829-318X
dc.identifier.other C1 en_US
dc.description.abstract Long-term declines in rainfall in south-western Australia have resulted in increased interest in the hydraulic characteristics of jarrah (Eucalyptus marginata Donn ex Smith) forest established in the region's drinking water catchments on rehabilitated bauxite mining sites. We hypothesized that in jarrah forest established on rehabilitated mine sites: (1) leaf area index (L) is independent of initial tree spacing; and (2) more densely planted trees have less leaf area for the same leaf mass, or the same sapwood area, and have denser sapwood. Initial stand densities ranged from about 600 to 9000 stems ha -1, and trees were 18 years old at the time of sampling. Leaf area index was unaffected by initial stand density, except in the most sparsely stocked stands where L was 1.2 compared with 2.0-2.5 in stands at other spacings. The ratio of leaf area to sapwood area (Al:As) was unaffected by tree spacing or tree size and was 0.2 at 1.3 m height and 0.25 at the crown base. There were small increases in sapwood density and decreases in leaf specific area with increased spacing. Tree diameter or basal area was a better predictor of leaf area than sapwood area. At the stand scale, basal area was a good predictor of L (r2 = 0.98, n = 15) except in the densest stands. We conclude that the hydraulic attributes of this forest type are largely independent of initial tree spacing, thus simplifying parameterization of stand and catchment water balance models. © 2008 Heron Publishing.
dc.language eng
dc.relation.hasversion Accepted manuscript version en_US
dc.title Does initial spacing influence crown and hydraulic architecture of Eucalyptus marginata?
dc.type Journal Article
dc.parent Tree Physiology
dc.journal.volume 5
dc.journal.volume 28
dc.journal.number 5 en_US
dc.publocation Victoria en_US
dc.identifier.startpage 753 en_US
dc.identifier.endpage 760 en_US SCI.Faculty of Science en_US
dc.conference Verified OK en_US
dc.for 0705 Forestry Sciences
dc.personcode 000006
dc.percentage 100 en_US Forestry Sciences en_US
dc.classification.type FOR-08 en_US
dc.edition en_US
dc.custom en_US en_US
dc.location.activity ISI:000256180000009 en_US
dc.description.keywords Bauxite mining
dc.description.keywords Crown structure
dc.description.keywords Leaf area index
dc.description.keywords Sapwood area
dc.description.keywords Wood density
pubs.embargo.period Not known
pubs.organisational-group /University of Technology Sydney
pubs.organisational-group /University of Technology Sydney/Faculty of Science
utslib.copyright.status Open Access 2015-04-15 12:23:47.074767+10
pubs.consider-herdc true
utslib.collection.history School of the Environment (ID: 344)
utslib.collection.history School of the Environment (ID: 344)
utslib.collection.history General (ID: 2)

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