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Record W2354055673

Introduction Effect of Pinus contorta in Sapling Stage

2005· article· en· W2354055673 on OpenAlexaboutno aff
Zhang Ying-tuan

Bibliographic record

VenueYunnan Forestry Science and Technology · 2005
Typearticle
Languageen
FieldEnvironmental Science
TopicEnvironmental and Agricultural Sciences
Canadian institutionsnot available
Fundersnot available
KeywordsPinus contortaSowingProvenanceBiologyPinus <genus>Significant differenceBotanyHorticultureForestryAnimal scienceMathematicsGeographyStatistics
DOInot available

Abstract

fetched live from OpenAlex

Using the Pinus contorta seeds of nine provenances from Canada,planting experiment of Pinus contorta was conducted at Shiziping and Yaojiapo in Gaoyanzi forest farm of Jianshi county,Hubei province.The growth performance of sapling stage showed that Pinus contorta could adjusted to the site conditions of the two experimental sites.The survival ratio and preserving ratio reached 91.3 %~100 %.The height growth and DBH growth of 14 years old experimental forests were analyzed,the results showed that the height growth and DBH growth of Pinus contorta were very significantly affected by provenance and planting site,and there was very significant interaction between provenance,planting site and tree height growth.Among the 9 provenances,the tree height growth of 10577,26230,25730,27084,28476,14726,26153 was very significantly higher than that of 25801 and 25803.There was no significant difference between every two provenance of the seven provenances.At Yaojiapo experimental site,the tree height growth of 10577 was very significantly higher than other provenances,next in order of 28476,26153,25730,27084 and 14726.The difference of DBH growth among provenances was rooted in the difference between 10577,25803 and 25801,and the difference between every other two provenances was not significant.

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 distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation 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 score0.078
Threshold uncertainty score0.780

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.001
Science and technology studies0.0000.002
Scholarly communication0.0000.000
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 head0.002
GPT teacher head0.192
Teacher spread0.190 · 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 teacher head, 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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