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Record W1975403672 · doi:10.4296/cwrj3404381

Water Table and Vegetation Response to Ditch Blocking: Restoration of a Raised Bog in Southwestern British Columbia

2009· article· en· W1975403672 on OpenAlexfundvenueaboutno aff
Sarah A. Howie, Paul H. Whitfield, Richard J. Hebda, T. G. Munson, Roslyn Dakin, John K. Jeglum

Bibliographic record

VenueCanadian Water Resources Journal / Revue canadienne des ressources hydriques · 2009
Typearticle
Languageen
FieldEnvironmental Science
TopicPeatlands and Wetlands Ecology
Canadian institutionsnot available
FundersSimon Fraser University
KeywordsBogPeatSphagnumWater tableHydrology (agriculture)Environmental scienceDitchVegetation (pathology)DrainageOmbrotrophicGroundwaterEcologyGeologyGeographyArchaeology

Abstract

fetched live from OpenAlex

Large-scale peat harvesting operations alter hydrology of raised bogs so that natural regeneration may not occur without altering the water table. This paper describes efforts to restore key hydrologic and ecologic processes in a southwest BC raised bog (Burns Bog) highly disturbed by decades of peat extraction, drainage, filling, and conversion to agriculture, urban, and industrial uses. The restoration goals are to return a high water table throughout the bog, but particularly in the pine forests at the edge of the bog, to re-establish Sphagnum cover, and to re-start the peat-forming process in degraded peat-harvested sectors. Peripheral and interior ditches are being blocked to increase the retention of winter precipitation into the drier summer months. Piezometer/well measurements have detected water table increases in the past two years, including a relatively immediate response in one site. New Sphagnum colonies have become established in the dry perimeter forest, a first indication that the water table may be rising and that peat-forming vegetation may be responding positively. These preliminary results suggest that it is possible to detect a rapid hydrological response with a comprehensive monitoring network in raised bogs; this observation is key to early prediction of future peatland restoration initiatives.

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 score0.102
Threshold uncertainty score0.206

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 studies0.0010.000
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 head0.007
GPT teacher head0.185
Teacher spread0.178 · 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

Citations56
Published2009
Admission routes3
Has abstractyes

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Same venueCanadian Water Resources Journal / Revue canadienne des ressources hydriquesSame topicPeatlands and Wetlands EcologyFrench-language works237,207