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Record W28820456 · doi:10.3390/v9080227

Fuelwood production in the degraded agricultural areas of the Aral Sea Basin, Uzbekistan

2008· article· en· W28820456 on OpenAlexaboutno aff
John P. A. Lamers, Asia Khamzina

Bibliographic record

Venuenot available
Typearticle
Languageen
FieldAgricultural and Biological Sciences
TopicBioenergy crop production and management
Canadian institutionsnot available
Fundersnot available
KeywordsForestryPopulus euphraticaUlmus pumilaGeographyBotanyBiology

Abstract

fetched live from OpenAlex

Les petites plantations installees a des fins de phyto-remediation dans des parcelles degradees du bassin de la mer d'Aral (Asie centrale) sont des sources potentielles d'energie pour les menages ruraux, souvent sans acces au gaz. Des donnees sur les caracteristiques energetiques des essences locales sont indispensables pour la selection d'essences destinees au boisement de parcelles marginales. Les proprietes energetiques - densite, cendres et valeur calorifique (indice energetique du bois de feu, Fvi), rapport biomasse-cendres, humidite, carbone, azote - ont ete etudiees dans le bois de Elaeagnus angustifolia, Ulmus pumila et Populus euphratica, pendant quatre ans. Les valeurs calorifiques du bois de fut sont assez stables : 19,0-19,2 MJ kg -1 pour E. angustifolia, 18,2-19,0 pour U. pumila et 18,3-19,3 pour P. euphratica. La densite du bois variait de 0,44 a 0,57 g cm- 3 , et les cendres entre 0,6 et 11 % en raison de la salinite elevee. Les cendres sont la caracteristique la plus decisive pour la chaleur de combustion, comme l'indique sa relation inverse aux valeurs calorifiques (r 2 = 0,77). Il n'existe pas de correlation entre valeur calorifique et densite du bois (r 2 = 0,02). En termes de Fvi, les essences se classaient: E. Angustifolia > U. pumila > P. euphratica. Apres quatre ans, la valeur energetique d'un hectare d'arbres plantes avec 2 300 tiges ha -1 suivait l'ordre: P. euphratica (10,3 t equivalent petrole, tep), E. angustifolia (8,4 tep), U. pumila (6,4 tep), informant sur l'energie equivalente potentielle des plantations d'arbres dans les terres marginales.

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: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.059
Threshold uncertainty score0.118

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0020.002
Science and technology studies0.0010.000
Scholarly communication0.0010.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

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 head0.025
GPT teacher head0.192
Teacher spread0.167 · 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

Citations25
Published2008
Admission routes1
Has abstractyes

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