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Record W3084051641

Investigation of Cover Crop Adoption as a Soil Conservation Practice Across Southern Ontario

2020· dissertation· en· W3084051641 on OpenAlexaboutno aff
Katherine Shirriff

Bibliographic record

VenueThe Atrium (University of Guelph) · 2020
Typedissertation
Languageen
FieldAgricultural and Biological Sciences
TopicSoil Carbon and Nitrogen Dynamics
Canadian institutionsnot available
Fundersnot available
KeywordsCover cropAgroforestryCover (algebra)Soil conservationCropGeographyEnvironmental scienceAgronomyForestryEngineeringAgricultureBiologyArchaeology
DOInot available

Abstract

fetched live from OpenAlex

Diversifying cropping systems with cover crops is an essential practice to maintain production and conserve the environmental impacts of agriculture under-stressed climatic condition. This study utilized OMAFRA’s Field Crop Data (2017), and Agriculture and Agri-Food Canada (AAFC) Annual Crop Inventory (ACI) datasets with Esri ArcMAP; to investigate crop diversity trends, and cover crop occurrence throughout corn and soybean systems. This study determined that field crop diversity is declining, and cover crops do not have a high adoption rate in corn and soybean systems. The Universal Soil Loss Equation (USLE) was then employed to assess the correlation between soil loss-sensitive fields with cover crop adoption. Investigating the south Simcoe Watershed as a case study, this research revealed that only a small portion (18.2%) of agricultural operations incorporate cover crops. These findings suggest that cover crops are an underutilized conservation technique that needs to target fields that have yet to adopt cover crops and operations that are located on erosion-prone soils in Southern Ontario.

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)0.001
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.023
Threshold uncertainty score0.109

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.001
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0010.002
Science and technology studies0.0010.001
Scholarly communication0.0010.000
Open science0.0000.001
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0010.000

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.

Opus teacher head0.023
GPT teacher head0.219
Teacher spread0.196 · 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 designObservational
Domainnot available
GenreEmpirical

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
Published2020
Admission routes1
Has abstractyes

Explore more

Same venueThe Atrium (University of Guelph)→Same topicSoil Carbon and Nitrogen Dynamics→French-language works237,207→