The natural revegetation of a vacuum-mined peatland: Eight years of monitoring
Bibliographic record
Abstract
To determine whether a highly disturbed peatland ecosystem was successfully regenerating, we monitored the natural revegetation of a vacuum-mined bog located in southern Québec that was abandoned in 1989 (Cacouna bog).Vegetation surveys were carried out in 1994 and 1998.The presence/absence of all species of vascular and non-vascular plants along eight 264-m long transects was noted in both years.The height structure of the invading birch (Betula spp.) population was also reconstructed in 1998.Only 11 plant species were sampled in 1994 at the vacuum-mined site.The 1998 survey added only five other species to the list.Nevertheless, the 1994 and 1998 vegetation surveys were significantly different, particularly because the cover of four ericaceous shrub species (Chamaedaphne calyculata, Kalmia angustifolia, Ledum groenlandicum, Vaccinium angustifolium) had increased since 1994.Height structure of the birch population indicated that seedlings were very numerous at the study site, but few of them will probably survive to their first or second growing season.This suggests that the natural revegetation of the Cacouna bog's vacuum-mined (mechanically harvested) site is slowly converging towards that of most block-cut mined (manually harvested) sites in southern Québec; i.e., a dense plant cover dominated by ericaceous shrub species.However, no Sphagnum species had established eight years after abandonment of the vacuum-mined section.This indicates that the site is not returning to a functional peatland ecosystem.Additional restoration measures should be elaborated to accelerate the revegetation process.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot 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.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| 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 teacher head, 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".