Carbon dioxide flux of various surface conditions for tundra ecosystem in High Arctic and Antarctic Peninsula
Bibliographic record
Abstract
Carbon dioxide fluxes were measured in the tundra ecosystem in order to evaluate the potential future sensitivity of the carbon cycle to climate change using chamber methods during summer in the Antarctic and high Arctic. The study sites are located on tundra in Baton Peninsula of King George Island, Antarctic Peninsula (62°13’ 28.87"S, 58°47’18.37"W) and high-arctic near Cambridge Bay, Nunavut, Canada (69°7'47.7"N, 105°3'35.3"W). The site of Baton Peninsula is mainly covered with various lichens and mosses and the site of Cambridge Bay is mainly covered with dwarf-shrubs, graminoids, mosses and lichens. CO2 flux was examined to understand change of the carbon cycle over the tundra ecosystems with various conditions for vegetation and soil. The emission CO2 flux and net CO2 exchange showed distinguished differences on type of vegetation and surface soil organic content. The variability of carbon flux depends on soil temperature and soil water content. Net CO2 exchange, soil respiration, and gross primary production were measured or calculated to investigate the influence of the ecosystem in the tundra carbon cycle in the Polar region. This study was supported by a National Research Foundation of Korea grant from the Korean government (MSIP) (NRF-2021M1A5A1065679 and NRF-2021R1I1A1A01053870) and PE 24130.
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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) | 0.000 | 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 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".