Claim · model-written summary
Birch leaf mass decrease under NF++ was 30%.
- Taxon
- birch (Betula pendula)
Betula pendulat0 - Treatment
- NF++e0
- Outcome
- leaf mass decreasese0
- Direction
- decreasese0
- Value
- 30%e0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen resorption efficiencies were 81, 73 and 63% and leaf mass decreases were 45, 36 and 30% in the NF, NF+ and NF++ treatments, respectively”
t0“birch (Betula pendula)”
Title
J. Uddling; P. E. Karlsson; A. Glorvigen; et al. Tree Physiology 2006. doi:10.1093/treephys/26.1.113
Other claims from this paper (14)
- Association Birch photosynthesis declined with leaf age under NF++ ozone.
- Observation Birch photosynthesis remained high during measurement under NF and NF+ ozone.
- Intervention effect Birch leaves abscised prematurely under NF++ ozone in both years.
- Intervention effect Birch leaf premature abscission under NF+ ozone was significant only in 1998.
- Association Proportional birch leaf shedding had a strong linear relationship with daylight ozone exposure above the stated threshold.
- Intervention effect Ozone significantly impaired birch leaf nitrogen resorption.
- Intervention effect The smaller autumnal leaf dry mass decrease under elevated ozone suggests inhibited bulk leaf dry mass resorption.
- Observation Birch nitrogen resorption efficiency under NF was 81.
- Observation Birch nitrogen resorption efficiency under NF+ was 73.
- Observation Birch nitrogen resorption efficiency under NF++ was 63%.
- Observation Birch leaf mass decrease under NF was 45.
- Observation Birch leaf mass decrease under NF+ was 36.
- Intervention effect Birch nitrogen loss through litter fall increased by 16 under NF+ compared with NF.
- Intervention effect Birch nitrogen loss through litter fall increased by 122% under NF++ compared with NF.