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Record W7134270951 · doi:10.5558/tfc2024-031

Interior lodgepole pine ( <i>Pinus contorta var. latifolia</i> ) and white spruce ( <i>Picea glauca</i> ) orchard capacity and demand in Alberta, Canada

2025· article· en· W7134270951 on OpenAlexaffvenueabout
Kennedy L. Mitchell, Barb Thomas

Bibliographic record

VenueThe Forestry Chronicle · 2025
Typearticle
Languageen
FieldEnvironmental Science
TopicSeedling growth and survival studies
Canadian institutionsUniversity of Alberta
Fundersnot available
KeywordsPinus contortaSeed orchardReforestationOrchardProductivityTree breedingTree (set theory)

Abstract

fetched live from OpenAlex

Seed orchards that produce genetically selected or improved seeds for forest adaptation and productivity are a fundamental element of successful tree improvement programs. A productive orchard maximizes the benefits of tree improvement initiatives by meeting regional seed demands for annual artificial regeneration. To understand the current capacity, of six interior lodgepole pine ( Pinus contorta var. latifolia) and eight white spruce ( Picea glauca) orchards in Alberta to produce improved seed and meet reforestation needs, we reviewed the historical annual seed supply and demand. Based on reported annual seed production, we estimated the theoretical productive orchard area required to meet future seed demand. From this work, a tool was developed to visually represent the estimated orchard area required to meet seed production targets for each tree improvement program based on user-defined variables. We identified several under producing orchards, primarily for interior lodgepole pine. In the programs studied, additional productive orchard area will be required to meet seed demand targets and maximize the benefits of the tree improvement programs they serve.

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 score0.036
Threshold uncertainty score0.072

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0010.001
Science and technology studies0.0010.000
Scholarly communication0.0010.000
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 head0.200
Teacher spread0.193 · 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

Citations0
Published2025
Admission routes3
Has abstractyes

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