Atmospheric CO<sub>2</sub>sequestration in restored mined peatlands
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Bibliographic record
Abstract
This study comparing the net ecosystem CO2 exchange in natural, restored, and naturally regenerated peatlands assesses the significance of peatland restoration as a global biotic offset under the Kyoto Protocol. Maximum gross photosynthesis (GPmax) at the restored peatland (-17.5 g CO2 m-2 d-1) was more than two times that at lawns in the natural peatland (-8.2 g CO2 m-2 d-1) and almost three times that of the naturally regenerated peatland (-6.5 g CO2 m-2 d-1). However, GPmax at hummock sites (-18.1 g CO2 m-2 d-1) in the natural peatland exceeded that of the restored peatland. Total rainfall during the study period was ~75% of the 30-year mean and these drier conditions resulted in all sites being a net source of atmospheric CO2 during the summer. From May 5 to August 23, 1998 respiration followed the trend: mined (398 g C m-2) > restored (169 g C m-2) > natural (138 g C m-2) peatland. While restoration did not return the net carbon sink function, it resulted in a significant decrease in the source of atmospheric CO2 (229 g C m-2) over the summer season. Approximately 70% of this decrease was due to the increase in gross ecosystem production, while the remaining 30% was due to a decrease in total respiration. The presence of Sphagnum mosses at the naturally regenerated peatland also resulted in a ~45% decrease in total respiration (soil and plants), indicating that an increase in volumetric soil moisture content during restoration has the potential to lower soil respiration at abandoned mined peatlands. Considering the area of drained and mined peatlands globally, peatland restoration on abandoned mined peatlands has the potential to represent an important biotic offset through enhanced carbon sequestration.
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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 | 0.001 |
| 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) | 0.000 | 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 it