Claim · model-written summary
Total peat polyarene mass fraction decreased by an order of magnitude relative to forest-tundra peatlands.
- Outcome
- total mass fraction of polyarenese0
- Direction
- decreasee0
- Value
- an order of magnitudee0
- Comparator
- forest-tundra peatlandse0
Not reportedTaxonMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentSettingQualifier
Verbatim
e0“a decrease in the total mass fraction of polyarenes in these peatlands by an order of magnitude in comparison with the forest-tundra peatlands”
Title
Accumulation of Polyarenes in Plants of Peatlands on the Coast of the Barents Sea
E. V. Yakovleva; D. N. Gabov; A. N. Panyukov Eurasian Soil Science 2020. doi:10.1134/s1064229320110137
Other claims from this paper (9)
- Observation Two- and three-ringed polyarenes comprised 81 to 97% of plant PAHs on the Barents Sea coast.
- Observation Sphagnum lindbergii had the highest total polyarene content.
- Observation Carex aquatilis had the highest total polyarene content.
- Observation Eriophorum russeolum had the highest total polyarene content.
- Observation Tundra and forest-tundra plants had identical qualitative and quantitative PAH compositions, allowing extrapolation to reference peatlands.
- Association Upper peat and dominant plant PAH compositions were tightly correlated.
- Association PAH correlation coefficients decreased with depth in association with increasing peat decomposition.
- Observation Northern tundra peat lacked heavy PAH accumulation peaks in active and permafrost layers.
- Mechanism Slower lignin decomposition under tundra conditions may explain the peat polyarene pattern.