co2 · Yield · Pinus sylvestris (Scots pine)
6 claims from these papers; 3 citations between them.
Papers whose results differ, checked claim by claim 1
1 pair of papers on this question report results that differ: an effect in one paper, the opposite effect or no effect in the other. Two model reviewers reading both claims accepted each pair.
- Elevated CO2 and tree root growth: contrasting responses in Fraxinus excelsior, Quercus petraea and Pinus sylvestris (1998)
increaseCoarse root production increased under elevated CO2 in Scots pine.
The influence of elevated CO2 and O3 on fine roots and mycorrhizas of naturally growing young Scots pine trees during three exposure years (1999)no changeElevated CO2 had no significant effect on biomass production of Scots pine coarse or fine roots and roots of grasses and dwarf shrubs.
The records name no dose, test system or situation that separates the two claims.Compare the two papers →
How these papers cite each other
3 citations between these papers: 2 on the same side, 1 across the two sides.
- Positive result
- Negative result or no effect
- Citation, pointing to the cited paper
- Citation across the two sides
- Larger circle: more citations overall
Years run left to right. Citations come from the papers’ OpenAlex reference lists. Hover a paper to bring forward its citations; click it to open the paper.
Papers reporting a positive result 5
- positive
- positive
- positive
- positive
- positive
Papers reporting a negative result or no effect 1
A paper is on the positive side when any of its claims here is positive. Claims are grouped by organism, treatment and what was measured or targeted. Claims that compare genotypes are left out; a claim about lacking a nutrient counts the other way round in that nutrient’s question. “Results differ” marks a question where two model reviewers, reading both claims, accepted at least one pair of papers whose results differ.