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Record W2037445916 · doi:10.4296/cwrj3004331

Camp Creek Revisited: Streamflow Changes Following Salvage Harvesting in a Medium-Sized, Snowmelt-Dominated Catchment

2005· article· en· W2037445916 on OpenAlex

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

fundA Canadian funder is recorded on the work.
venuePublished in a venue whose home country is Canada.
aboutThe title or abstract carries a Canadian signal from the geographic lexicon.
no affNo Canadian affiliation: this work is invisible to an affiliation-only frame.
No Canadian affiliation. An affiliation-only frame, the usual design, would never have seen this work. It is one of the works that make the case for inverting the frame.

Bibliographic record

VenueCanadian Water Resources Journal / Revue canadienne des ressources hydriques · 2005
Typearticle
Languageen
FieldEnvironmental Science
TopicHydrology and Watershed Management Studies
Canadian institutionsnot available
FundersNatural Sciences and Engineering Research Council of Canada
KeywordsSnowmeltDrainage basinStreamflowHydrology (agriculture)Environmental scienceSTREAMSWater yearDrainageSnowElevation (ballistics)GeologyGeographyEcologyGeomorphologyBiology

Abstract

fetched live from OpenAlex

Abstract This study used a paired-catchment approach to investigate the effects of harvesting on streamflow for Camp Creek, a snowmelt-dominated stream in the southern interior of British Columbia. The drainage area for Camp Creek is 33.9 km2, and 27 percent of the area was harvested in response to a pine beetle infestation. Adjacent Greata Creek, with a drainage area of 40.7 km2, served as a control. Harvesting resulted in a significant increase in April flows, which persisted with no evidence of recovery through the 18-year post-treatment period, as well as a significant advance in the timing of peak flows relative to those for the control stream. No significant nor apparent changes in seven-day low flows were detected. Peak flows appeared to increase for smaller events, but not for larger events, although this result was not statistically significant. Detection of significant harvesting effects on low flows, peak flows and annual water yield may have been hampered by inherent differences between the two catchments, particularly in relation to aspect and elevation distribution, as well as by the effects of a climate shift that coincided with the harvesting treatment, and which was associated with low snow accumulation throughout the post-treatment period. Problems with finding well-matched catchment pairs likely represent a fundamental limitation in applying the paired-catchment approach to estimate the effects of forest harvesting in medium to large catchments. La présente étude repose sur une approche de comparaison par paire portant sur deux bassins hydrographiques afin d'examiner les effets de l'exploitation forestière sur l'écoulement fluvial de Camp Creek, un cours d'eau dominé par la fonte des neiges dans l'intérieur méridional de la Colombie-Britannique. Le bassin de drainage pour Camp Creek couvre une superficie de 33,9 km2 et 27 pour cent de la zone a fait l'objet de coupes à blanc en raison d'une infestation du dendroctone du pin. Le Greata Creek voisin, qui comporte un bassin de drainage couvrant une superficie de 40,7 km2, sert de zone témoin. L'exploitation forestière a entraîné une hausse considérable des débits d'avril, situation qui a persisté sans aucun signe de rétablissement de la situation tout au long de la période de post-traitement de 18 ans, ainsi qu'une occurrence des débits de pointe considérablement précoce comparativement aux débits du cours d'eau témoin. Aucun changement majeur ni apparent dans les faibles débits sur sept jours n'a été décelé. Les débits de pointe semblaient augmenter pour les événements de moindre importance, mais non pour les événements de plus grande ampleur, bien que ce résultat ne se soit pas avéré statistiquement significatif. La détection d'effets majeurs de l'exploitation forestière sur les faibles débits, les débits de pointe et l'apport d'eau annuel pourrait avoir été entravée par des différences inhérentes entre les deux bassins hydrographiques, en particulier en ce qui concerne l'aspect et la distribution de l'élévation, de même que par les effets d'un changement climatique ayant coïncidé avec l'exploitation forestière et qui aurait été associé à une faible épaisseur de neige tout au long de la période de post-traitement. Il est difficile de trouver une paire de bassins hydrographiques compatibles et cela représente probablement une limitation fondamentale à l'application de l'approche de comparaison par paire pour ce qui est de l'estimation des effets de l'exploitation forestière sur les bassins hydrographiques de taille moyenne à grande.

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.

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.002
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow), Science and technology studies, Insufficient payload (model declined to judge)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Not applicable · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.973
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0020.000
Meta-epidemiology (narrow)0.0010.001
Meta-epidemiology (broad)0.0010.000
Bibliometrics0.0010.001
Science and technology studies0.0010.001
Scholarly communication0.0000.001
Open science0.0010.000
Research integrity0.0000.001
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 head0.011
GPT teacher head0.206
Teacher spread0.196 · 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