Claim · model-written summary
After 2.5 seasons, oldest stem cross-sectional area was about 32% greater at plus 4 versus minus 4 degrees C.
- Taxon
- European beech
Fagus sylvaticat0 - Treatment
- +4 degrees C treatmente0
- Outcome
- cross-sectional area of the oldest stem parte0
- Direction
- greatere0
- Value
- approximately 32%e0
- Comparator
- -4 degrees C treatmente0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cross-sectional area of the oldest stem part was approximately 32% greater in the +4 degrees C treatment than in the -4 degrees C treatment”
t0“European beech”
Title
D. Overdieck; D. Ziche; K. Bottcher-Jungclaus Tree Physiology 2007. doi:10.1093/treephys/27.2.261
Other claims from this paper (19)
- Intervention effect Higher temperature increased stem diameter by 2.4% per degree C.
- Intervention effect Higher temperature increased stem height by 8.5% per degree C.
- Intervention effect Higher temperature increased stem mass per tree by 10.9% per degree C.
- Intervention effect Higher temperature increased leaf area per tree by 6.5% per degree C.
- Intervention effect Increasing temperature decreased leaf mass ratio by 2.3% per degree C.
- Intervention effect Increasing temperature decreased leaf area ratio by 2.2% per degree C.
- Intervention effect Increasing temperature increased stem mass relative to total mass by 2.1% per degree C.
- Intervention effect Elevated carbon dioxide enhanced height growth by 8.8%.
- Intervention effect Elevated carbon dioxide decreased coarse root mass relative to total mass by 10.3%.
- Intervention effect Elevated carbon dioxide decreased root to shoot ratio by 11.7%.
- Observation Additional carbon was mainly invested in aboveground growth.
- Intervention effect With elevated carbon dioxide, trees were 3.2% taller at minus 4 degrees C than under ambient carbon dioxide.
- Intervention effect With elevated carbon dioxide, trees were 12.7% taller at plus 4 degrees C than under ambient carbon dioxide.
- Intervention effect Leaf area per unit tree-ring area was about 67% greater at the highest versus lowest temperature.
- Intervention effect Elevated carbon dioxide decreased mean area of the largest vessels by 5.8%.
- Mechanism Reduced vessel area decreased water conducting capacity.
- Intervention effect Relative vessel area was about 38% higher at plus 4 than minus 4 degrees C under elevated carbon dioxide compared with ambient carbon dioxide.
- Observation Temperature had a greater effect on growth than carbon dioxide.
- Intervention effect Elevated carbon dioxide caused quantitative changes in wood anatomy.