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Record W1979547941 · doi:10.1029/2007jg000400

Methane emissions from a peatland following restoration

2007· article· en· W1979547941 on OpenAlexaffabout
J. M. Waddington, Stuart Day

Bibliographic record

VenueJournal of Geophysical Research Atmospheres · 2007
Typearticle
Languageen
FieldEnvironmental Science
TopicPeatlands and Wetlands Ecology
Canadian institutionsMcMaster University
Fundersnot available
KeywordsPeatEnvironmental scienceCarbon sinkCarbon dioxideBogVegetation (pathology)Hydrology (agriculture)Ecosystem respirationCarbon cycleSink (geography)EcosystemGrowing seasonPrimary productionAtmospheric sciencesEcologyGeologyGeography

Abstract

fetched live from OpenAlex

Peatland drainage and peat extraction changes natural peatlands from a net carbon sink to that of a large net source due to increased respiration and the removal of carbon dioxide (CO 2 ) fixing vegetation. Restoration of these altered peatland ecosystems is being applied to reduce these carbon emissions. As peatland restoration is a new and emerging land‐use management practice, the purpose of this research was to examine the impact of restoration on the methane (CH 4 ) component of the carbon cycle at the Bois‐des‐Bel peatland located near Rivière‐du‐Loup, Québec from early May to mid October for several years. The seasonal CH 4 fluxes prior to restoration at an extracted (cutover) and a restored peatland were not significantly different from each other or zero. However, three years postrestoration the seasonal CH 4 emissions at the restored site were 4.2 g m −2 CH 4 season −1 , 4.6 times greater than the cutover site. Ponds and ditches at the restored site were seasonal CH 4 emission hot spots (0.3 and 2.9 g m −2 CH 4 season −1 , respectively); however, emissions from herbaceous vegetation (1.0 g m −2 CH 4 season −1 ) were the dominant source of CH 4 from the restored peatland due to its large areal extent. CH 4 fluxes from the Bois‐des‐Bel peatland represented 14% of the total CO 2 ‐equivalent losses from the site. This study demonstrates the importance of vegetation succession on peatland‐atmosphere flux of CH 4 .

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not 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.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.301
Threshold uncertainty score0.598

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0010.000

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.

Opus teacher head0.031
GPT teacher head0.338
Teacher spread0.307 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designObservational
Domainnot available
GenreEmpirical

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".

Quick stats

Citations157
Published2007
Admission routes2
Has abstractyes

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