The effects of slashburning on the growth and nutrition of young Douglas-fir plantations in some dry, salal-dominated ecosystems
Bibliographic record
Abstract
Twenty Douglas-fir plantations, ranging from 5 to 15 years old, were examined on the east side of Vancouver Island. In all areas studied, salal was the dominant ground cover, and was suspected of being a major competitor with trees for water and nutrients. In each plantation, part of the area has been burned and part was unburned. Stocking of planted Douglas-firs was found to be greater on the burned than on the unburned areas of 16 sites and height growth of planted Douglas-firs was greater on the burned than on the unburned areas of 18 sites. Some degree of nitrogen deficiency was inferred for 17 sites, but was not attributed to burning. Height and percent cover of salal was greater on unburned areas. Differences in height growth and percent cover of salal between burned and unburned areas were seen to be greatest where inferred burn severity was high. Browsing of Douglas-fir was more prevalent on burned areas but did not result in height growth being less than on adjacent unburned areas.
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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 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.000 |
| Science and technology studies | 0.001 | 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".