Seasonal patterns of fine-root production and mortality in <i>Prunus avium</i> in Scotland
Bibliographic record
Abstract
The seasonal pattern of root dynamics in Prunus avium (L.) L. (wild cherry) was determined using mini rhizotron observations of the production and disappearance of individual roots over a 2-year period at a site in northeast Scotland. The largest percentage of observed root appearance and disappearance took place at a depth of 10 cm (34%) compared with approximately 20% at each of three lower depths down to 30 cm. Of the 37 574 roots·m2 produced in total over the 2-year observation period, some 78% disappeared during the study. Over 90% of new root production occurred between March and October. Root production was highest in June 1998 (2263 roots·m2) and lowest in January of 1998 and 1999 (31 roots·m2). Combination of these data with counts of root disappearance showed that there was a net increase in root numbers per tree between March and June. From June onwards, the rate of root disappearance exceeded the rate of production. Thus, any annual increase in the number of roots depended upon a short period of major root production in late spring early summer.
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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 | 0.001 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 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".