Intervention effectmodel-written summary

Both clones increased stem volume and aboveground biomass under elevated CO2.

A claim from First- and second-year aboveground growth and productivity of two Populus hybrids grown at ambient and elevated CO2 · 1996

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Both clones increased stem volume and aboveground biomass under elevated CO2.

Taxon
Populus hybridst0
Treatment
elevated CO(2) treatmente0
Outcome
stem volume and aboveground biomass productione0
Direction
increasede0

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier

Verbatim

e0

“Both clones responded positively to the elevated CO(2) treatment with increased stem volume and aboveground biomass production”

✓ located verbatim in the source · abstract, characters 415–541
t0

“Populus hybrids”

✓ located verbatim in the source · title, characters 66–81

Title

First- and second-year aboveground growth and productivity of two Populus hybrids grown at ambient and elevated CO2

R. Ceulemans; B. Y. Shao; X. N. Jiang; et al. Tree Physiology 1996. doi:10.1093/treephys/16.1-2.61

Other claims from this paper (12)

Record rev-adeb2ab8df04a080666bd609b4ea1fbc7f9a9d92eb94ad96e6f1d2e4e926de7e · schema claims-v0.9 · position 1 in the model’s answer

co2 · yield · Populus (poplar)Positive and negative results

12 papers: 11 positive, 1 negative or no effect

10 papers in the same direction as this claim · 1 in the opposite direction

  1. positive
    Elevated CO2 increased branch number and leaf area in clone Lux.

    Responses of two Populus clones to elevated atmospheric CO2 concentration in the field · 1999

    Same directionCites this paper

  2. no effect
    Elevated CO2 did not affect annual poplar litter production.

    Leaf litter production and decomposition in a poplar short‐rotation coppice exposed to free air CO2 enrichment (POPFACE) · 2005

    Opposite direction

  3. positive
    FACE increased gross primary productivity by 22% in year two.

    Net carbon storage in a poplar plantation (POPFACE) after three years of free-air CO2 enrichment · 2005

    Same direction

  4. positive
    Elevated CO2 significantly stimulated GPP in all three years, by 223–251% in year one.

    Gross primary production is stimulated for three Populus species grown under free‐air CO2 enrichment from planting through canopy closure · 2005

    Same direction

  5. positive
    Elevated CO2 stimulated poplar branch production only in the first year.

    Do above‐ground growth dynamics of poplar change with time under CO2enrichment? · 2003

    Same direction

  6. positive
    Elevated CO2 (FACE) stimulated annual leaf production of poplar coppice.

    Elevated CO2 concentration, fertilization and their interaction: growth stimulation in a short-rotation poplar coppice (EUROFACE) · 2005

    Same direction

  7. positive
    Elevated [CO2] will increase the net energy production and greenhouse gas balance of the poplar SRC system by 18% relative to current ambient [CO2].

    Bio-Energy Retains Its Mitigation Potential Under Elevated CO2 · 2010 · compared with current ambient

    Same direction

  8. positive
    Elevated CO2 delayed abscission.

    Elevated CO2 protects poplar (Populus trichocarpa × P. deltoides) from damage induced by O3: identification of mechanisms · 2005

    Same direction

3 papers more in this group

See all 12 papers →

Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.