Distribution character of organic carbon in black soil of sloping field and calculation of loss amount of soil carbon.
Bibliographic record
Abstract
The process of re-distribution of black soil in sloping field for about 100 year was studied utilising fly ash and 137Cs trace technique; then the loss amount of soil organic carbon (SOC) was corrected. The upslope site always suffered erosion, while the distribution depth of 137Cs and fly ash reached 30cm and 60cm at foot-slope depositional site and 70cm and 80cm at toe-slope site respectively, explaining that considerable amount of organic carbon was sequestered under the current plowed layer in the depositional area. The depth of fly ash distribution at foot-slope was consistent with the surface of original buried layer, indicating that the study area had been cultivated before the use of steam locomotive. After consideration of solid redistribution accumulating SOC in the depositional area, SOC in the depositional sites became a local sink of atmosphere CO2. The loss amount SOC in the whole study area was lower than the calculation result with traditional method.
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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".