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Record W2112044899 · doi:10.1139/x06-180

The influence of forest structure on riparian litterfall in a Pacific Coastal rain forest

2006· article· en· W2112044899 on OpenAlexvenueno aff
Thomas C. O’Keefe, Robert J. Naiman

Bibliographic record

VenueCanadian Journal of Forest Research · 2006
Typearticle
Languageen
FieldAgricultural and Biological Sciences
TopicSoil erosion and sediment transport
Canadian institutionsnot available
FundersNational Park ServiceAndrew W. Mellon Foundation
KeywordsChronosequencePlant litterCanopyRiparian zoneBasal areaEnvironmental scienceLitterDominance (genetics)EcologyRiparian forestTemperate rainforestEcological successionForestryNutrientBiologyEcosystemGeographyHabitat

Abstract

fetched live from OpenAlex

Vegetative litter produced from riparian forests associated with alluvial rivers mediates nutrient and carbon cycling and indirectly shapes successional pathways and overall plant community characteristics. We quantified litter inputs at sites along the Queets River, a temperate rain forest river, in Olympic National Park, Washington. Study plots represented a chronosequence from pioneering vegetative patches on recently formed gravel bars to mature riparian forest terraces up to 350 years old. We observed an initial ~100 year linear increase in litter production (0.8–10.2 Mg·ha–1·year–1). Subsequently, we observed a shift to conifer dominance and development of a forest canopy with considerable structural complexity. During this time, litter production declined to ~5 Mg·ha–1·year–1. Empirical models of temporal changes in litter production suggest that the basal area and canopy volume of individual tree species are significant predictors (r2 = 0.60–0.99) of leaf and needle litter derived from that species, and can be used to predict litter production. We conclude that annual litter production is strongly influenced by structural forest characteristics and that litterfall rates can be estimated for a ~350 year chronosequence from stem basal area and canopy volume.

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 score0.083
Threshold uncertainty score0.165

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.001
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
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 head0.027
GPT teacher head0.255
Teacher spread0.228 · 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

Citations21
Published2006
Admission routes1
Has abstractyes

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