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Record W2912741533

Economic Evaluations of Tree Improvement for Planted Forests: A Systematic Review

2019· review· en· W2912741533 on OpenAlexaff
Wei-Yew Chang, Shuo Wang, Chris Gaston, Julie Cool, Henry An, Barb R. Thomas

Bibliographic record

VenueBioProducts Business · 2019
Typereview
Languageen
FieldEnvironmental Science
TopicForest Management and Policy
Canadian institutionsUniversity of AlbertaUniversity of British Columbia
Fundersnot available
KeywordsTree breedingReforestationValuation (finance)Genetic gainAgroforestryIncentiveProductivityBusinessEcosystem servicesStock (firearms)Tree (set theory)EconomicsGeographyEcologyEcosystemEnvironmental scienceWoody plantBiologyGenetic variationMathematics
DOInot available

Abstract

fetched live from OpenAlex

This paper reviews the literature on the economic evaluations of tree improvement for planted forests and investigates whether or not using improved reforestation stock from tree improvement programs is a good investment. The main findings from systematic web-based searches show that (1) tree improvement is an effective tool to improve forest productivity and to realize financial returns; (2) economic gains from wood production with selection for breeding traits (e.g., high-volume yield or height growth) are the main reasons forest managers adopt new biotechnologies in tree improvement; (3) cost-benefit analysis is the primary empirical approach for estimating the economic effects of tree improvement for planted forests; and (4) there is very little literature on estimating the non-market benefits (e.g., improved watershed protection, amenities, or conservation of genetic diversity) that tree improvement brings, using non-market valuation techniques. The recent introduction of new biotechnologies in tree improvement, such as genomics-assisted tree breeding (GATB), can achieve genetic gains in selected traits more quickly and effectively than traditional breeding approaches, providing economic incentives for forest managers to use better quality stock for planted forests. Therefore, we suggest that future research should (1) consider the additional benefit, extra research and development costs, and time saved by applying new biotechnologies in tree improvement (e.g., GATB) in the cost-benefit analysis; (2) investigate the trade-offs between timber volume and wood quality traits and assess the economic effects of new biotechnologies in tree improvement along different stages of the forestry supply chain; and (3) explicitly account for the non-market trait values for the targeted breeding traits (e.g., drought/pest resistance) so that tree improvement programs can contribute to sustainable production systems. Economic analyses along these lines could help policy makers, forest managers, and forest company owners better understand the trade-offs of alternative breeding objectives and make economically efficient investment decisions for planted forests.

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)0.011
metaresearch head score (Gemma)0.063
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Systematic review · Consensus signal: Systematic review
GenreCandidate signal: Review · Consensus signal: Review
Teacher disagreement score0.011
Threshold uncertainty score0.059

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0110.063
Meta-epidemiology (narrow)0.0010.001
Meta-epidemiology (broad)0.0050.006
Bibliometrics0.0100.009
Science and technology studies0.0000.001
Scholarly communication0.0030.003
Open science0.0020.001
Research integrity0.0020.002
Insufficient payload (model declined to judge)0.0060.000

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 head0.046
GPT teacher head0.327
Teacher spread0.281 · 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 designSystematic review
Domainnot available
GenreReview

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

Citations6
Published2019
Admission routes1
Has abstractyes

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