Identification of Factors Impeding the Spread of Jatropha Cultivation in the State of Chiapas, Mexico
Bibliographic record
Abstract
The state government of Chiapas in Mexico is promoting the cultivation of jatropha by farmers as a source of biofuel, with the first harvest expected in 2012. However, despite the fact that the planted jatropha has now reached the harvesting stage, no reports exist on the current status of jatropha cultivation in Chiapas or on issues related to cultivation. We accordingly conducted a study aimed at ascertaining the current status of jatropha cultivation and identifying factors impeding its spread. For the study, we conducted a questionnaire survey among 88 farmers of 7 villages located within 3 municipalities, and also interviewed them. Our study pointed to 2 key factors causing the abandonment of jatropha cultivation, namely the failure of farmers to receive ProArbol payments as financial assistance for cultivation, and damage caused to jatropha roots by gophers. Pest/disease outbreaks, lack of technical assistance, lack of trust for extension workers and distrust for the project were also obstacles to the spread of jatropha cultivation.
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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 | 0.001 | 0.002 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 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".