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Record W1726204302 · doi:10.1002/047147844x.aw429

Water Table Contribution to Crop Evapotranspiration

2004· other· en· W1726204302 on OpenAlexaff
Chandra A. Madramootoo

Bibliographic record

VenueWater Encyclopedia · 2004
Typeother
Languageen
FieldEngineering
TopicSoil and Unsaturated Flow
Canadian institutionsMcGill University
Fundersnot available
KeywordsEvapotranspirationEnvironmental scienceWater contentSoil waterTranspirationWater vaporWater tableRelative humidityAtmosphere (unit)Hydrology (agriculture)Water cycleSoil scienceAtmospheric sciencesPhotosynthesisGroundwaterChemistryGeologyEcologyMeteorology

Abstract

fetched live from OpenAlex

Abstract Evapotranspiration (ET) is the transfer of water vapor from the soil root zone to the atmosphere via the process of photosynthesis. Water vapor can also move directly from the ground surface to the atmosphere. The rate of ET depends on several climatic, soil water, and crop factors, including rainfall, relative humidity, wind speed, air temperature, solar radiation, cloud cover, soil moisture, and stage of crop growth. The plant transpires at the potential rate if soil water is not limiting, which depends on the soil water content. Water is held in the soil root zone in three distinct phases: hygroscopic water, capillary water, and gravitational water. Because of the high tension of the hydroscopic water, it is not available to plants. Both capillary water and gravitational water are available for crop uptake in the ET process.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not 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.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Simulation or modeling · Consensus signal: none
GenreCandidate signal: Other · Consensus signal: none
Teacher disagreement score0.013
Threshold uncertainty score0.043

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.001
Science and technology studies0.0000.000
Scholarly communication0.0010.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0130.003

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.

Opus teacher head0.005
GPT teacher head0.191
Teacher spread0.186 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designSimulation or modeling
Domainnot available
GenreOther

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".

Quick stats

Citations0
Published2004
Admission routes1
Has abstractyes

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