Abstract
Allometric relationships between stem variables and leaf area were determined for plantation Eucalyptus nitens (Deane et Maiden) Maiden and competing Acacia dealbata Link in 8-year-old and 4-year-old stands. Both cross-sectional area and sapwood area were considered at crown break and breast height. Whilst all four stem variables could be used to calculate tree leaf area adequately, proximity of the stem measurement to crown break was found to be more important than the choice of sapwood area or cross-sectional area in determining the closeness of the derived allometric relationship. When the relationship between sapwood area at crown break and leaf area was used, a single equation was suitable for predictive purposes across treatments for each species.
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Claims 3
Claim · model-written summary
All four stem variables could be used to calculate tree leaf area adequately.
- Taxon
- Eucalyptus nitens
Eucalyptus nitenst0 - Outcome
- calculate tree leaf areae1
- Value
- adequatelye1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Eucalyptus nitens”
e1“Whilst all four stem variables could be used to calculate tree leaf area adequately”
Claim · model-written summary
Proximity of the stem measurement to crown break was more important than the choice of sapwood or cross-sectional area for the closeness of the allometric relationship.
- Taxon
- Eucalyptus nitensEucalyptus nitenst0
- Outcome
- closeness of the derived allometric relationshipe2
- Direction
- more importante2
- Qualifier
- proximity of the stem measurement to crown breake2
- Comparator
- choice of sapwood area or cross-sectional areae2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Eucalyptus nitens”
e2“proximity of the stem measurement to crown break was found to be more important than the choice of sapwood area or cross-sectional area in determining the closeness of the derived allometric relationship”
Claim · model-written summary
A single sapwood area at crown break to leaf area equation was suitable for predictive purposes across treatments for each species.
- Taxon
- Eucalyptus nitensEucalyptus nitenst0
- Outcome
- predictive purposese3
- Qualifier
- for each speciese3
- Comparator
- across treatmentse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Eucalyptus nitens”
e3“When the relationship between sapwood area at crown break and leaf area was used, a single equation was suitable for predictive purposes across treatments for each species”