Differences in methane production, storage and transport among plant community types during a wet summer at Mer Bleue bog, Ottawa
Bibliographic record
Abstract
This study assessed indicators of methane (CH4) production, storage and transport among plant community types to investigate the spatial and temporal variability in CH4 dynamics during a wet summer at the Mer Bleue bog.Community type was largely differentiated by sedge (Eriophorum vaginatum) presence, which increased as the average water table depth approached the surface.Stable isotope analysis identified CO2 reduction as the dominant methanogenic pathway in all plots, but with more depleted source signatures as percent Eriophorum increased, possibly due to CH4 transport via aerenchymatous tissues.Increasing peat temperature contributed to increasing CH4 concentrations at 50 cm, near the long-term average water table, and dissolved organic carbon and total dissolved nitrogen at all depths, and a seasonal increase in chamber CH4 emissions.Plant community did not relate to spatial differences in pore water characteristics, but increasing percent Eriophorum was associated with greater CH4 emissions.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".