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Record W2003931391 · doi:10.5380/rf.v35i3.5188

QUANTIFICAÇÃO DE MACRONUTRIENTES EM FLORESTA OMBRÓFILA MISTA MONTANA UTILIZANDO DADOS DE CAMPO E DADOS OBTIDOS A PARTIR DE IMAGENS DO SATÉLITE IKONOS II

2005· article· pt· W2003931391 on OpenAlexaff
Vanessa Canavesi, Flávio Felipe Kirchner

Bibliographic record

VenueFLORESTA · 2005
Typearticle
Languagept
FieldEnvironmental Science
TopicForest ecology and management
Canadian institutionsCentre de Santé et de Services Sociaux Cavendish
Fundersnot available
KeywordsPhysicsForestryEnvironmental scienceGeography

Abstract

fetched live from OpenAlex

O objetivo deste trabalho foi desenvolver uma metodologia para estimar os macronutrientes (N, P, K, S, Ca e Mg) presentes em uma floresta nativa, utilizando dados espectrais provenientes de satélite de alta resolução, IKONOS II, e dados de campo. As amostras de biomassa foram coletadas em 20 parcelas distribuídas em vários estágios sucessionais da floresta. Os teores de nutrientes em cada espécie foram obtidos em análises de laboratório, e a quantificação por parcela foi feita multiplicando-se esses teores pela biomassa seca. Por meio de análise estatística, relacionaram-se as quantidades de nutrientes nas parcelas com os dados obtidos nas imagens de satélite. Os valores de reflectância nas bandas MS-1, MS-2, MS-3, MS-4 e os índices de vegetação NDVI, SAVI e Razão de Bandas entraram no modelo como variáveis independentes, e os nutrientes, como dependentes. Foram geradas equações alométricas, o que permitiu a quantificação e o mapeamento dos nutrientes para a área.

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: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.033
Threshold uncertainty score0.066

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.001
Bibliometrics0.0010.001
Science and technology studies0.0000.000
Scholarly communication0.0010.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

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 head0.013
GPT teacher head0.247
Teacher spread0.235 · 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
Published2005
Admission routes1
Has abstractyes

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