Partitioning Field Evapotranspiration Fluxes by Using Stable Oxygen Isotope during Different Maize Growth Stages
Bibliographic record
Abstract
Field evapotranspiration is an important component in Soil Plant Atmosphere Continuum (SPAC), and it is comprised of plant transpiration and soil evaporation. However, the two components of which is difficult to partition. A field experiment was conducted in the Northern China to determine the maize transpiration and soil evaporation during a maize growth period using stable oxygen isotope. A water balance model in field was used to estimate the field evapotranspiration. Maize transpiration and soil evaporation were estimated during the five typical growth stages of seedling, jointing, booting, tasseling, and filling-mature, respectively. The results showed that total field evapotranspiration during the whole maize growth period was 481.8 mm and distributed in the five growth stages were 122.7, 81.9, 82.5, 71.5 and 123.2 mm, respectively, and the fraction of maize transpiration in field evapotranspiration in the five growth stages were 11.8%, 65.0%, 78.3%, 81.8%, and 50.02%, respectively.
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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 | 0.000 | 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) | 0.000 | 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".