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Record W1999687872 · doi:10.1139/x08-100

Variability in forest floor at different spatial scales in a natural forest in the Carpathians: effect of windthrows and mesorelief

2008· article· en· W1999687872 on OpenAlexvenueno aff
Pavel Šamonil, Kamil Král, Jan Douda, Barbora Šebková

Bibliographic record

VenueCanadian Journal of Forest Research · 2008
Typearticle
Languageen
FieldEnvironmental Science
TopicEcology and Vegetation Dynamics Studies
Canadian institutionsnot available
Fundersnot available
KeywordsHumusBeechSpatial variabilityForest floorSoil scienceEnvironmental scienceHorizonScale (ratio)EcologyGeologySoil waterGeographyBiologyMathematics

Abstract

fetched live from OpenAlex

Spatial variability of humus properties in a natural fir–beech forest was studied along with the influence of windthrows and mesorelief on this variability. In 1720 windthrows the thickness and form of the organic horizons were studied in three positions — mound, pit, and undisturbed control. On undisturbed sites, substantial variability of thickness and forms of the organic horizons was found on a fine scale (0–10 m). Close spatial dependence of some humus characteristics was found on a coarser scale (20–120 m). The mesorelief was found to be one of the key autocorrelation factors. The level of spatial dependence was not uniform; it differed between the fermented and humification horizons and among their forms. The presence of windthrows increased the variability of humus thickness on both fine (0–10 m) and coarse (level of entire locality, i.e., 11 ha) scales. However, windthrows did not increase the variability of organic horizon forms (OHFs) on a fine scale. High variability of OHFs is probably a property of fully developed mature humus in a natural fir–beech forest. On a coarse scale, the presence of pits increased the frequency of fermented zoogenous and humification residual horizons on the study area.

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 score0.026
Threshold uncertainty score0.051

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.001
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0010.001
Science and technology studies0.0000.001
Scholarly communication0.0000.000
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 head0.015
GPT teacher head0.269
Teacher spread0.254 · 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

Citations29
Published2008
Admission routes1
Has abstractyes

Explore more

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