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Record W4296001694 · doi:10.21203/rs.3.rs-2018689/v1

Are deforestation and degradation in the Congo Basin on the rise? An analysis of recent trends and associated direct drivers.

2022· preprint· en· W4296001694 on OpenAlexaff
Aurélie Shapiro, Rémi d’Annunzio, Quentin Jungers, Baudouin Desclée, Héritier Kondjo, Josefina Mbulito Iyanga, Fancis Gangyo, Pierrick Rambaud, Dénis Sonwa, Benoı̂t Mertens, Elisee Tchana, Conan Obame, Damase P. Khasa, Clement Bougouin, Tatiana Nana, Chérubins Ouissika, Daddy Kipute

Bibliographic record

VenueResearch Square · 2022
Typepreprint
Languageen
FieldEnvironmental Science
TopicConservation, Biodiversity, and Resource Management
Canadian institutionsUniversité Laval
FundersJoint Research Centre
KeywordsDeforestation (computer science)Structural basinDegradation (telecommunications)GeographyPolitical scienceDevelopment economicsEconomicsGeologyComputer scienceGeomorphologyTelecommunications

Abstract

fetched live from OpenAlex

Abstract The Congo Basin hosts the largest continuous tract of forest in Africa, regulating global climate while providing essential resources and livelihoods for humans, while harbouring extensive biodiversity. The threats to these forests are expected to increase. A regional collaborative effort has produced the first systematically validated remote sensing assessment of deforestation and degradation in six central African countries for 2015-2020 period, along with a quantification of associated direct drivers of change. Deforestation and degradation (DD) are not observed to be increasing since 2017 are occurring primarily in already fragmented corridor forests. We assess multiple, overlapping drivers and show that the rural complex, a combination of small-scale agriculture, villages, and roads contributes to the majority of DD. Industrial drivers such as mining and forestry are far less common, although their impacts on carbon and biodiversity could be more permanent and significant than informal activities. Artisanal forestry is the only driver that is observed to be consistently increasing over time. Our assessment produces information relevant for climate change mitigation which require detailed information on multiple direct drivers to target activities and investments.

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 score0.045
Threshold uncertainty score0.090

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 studies0.0000.000
Scholarly communication0.0010.000
Open science0.0000.000
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 head0.080
GPT teacher head0.332
Teacher spread0.252 · 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

Citations5
Published2022
Admission routes1
Has abstractyes

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