Version 1
: Received: 18 July 2024 / Approved: 18 July 2024 / Online: 19 July 2024 (11:07:14 CEST)
How to cite:
Silva Ribeiro, R. B. D.; Lisboa, L. S. S.; Dias, C. T. D. S.; Oliveira, A. H. M.; Araújo, E. J. G. D.; Andrade, D. F. C. D.; Martorano, L. G. Imprecision in Yield Estimates Using Timber Volume in Forest Management Plans in the Amazon. Preprints2024, 2024071564. https://doi.org/10.20944/preprints202407.1564.v1
Silva Ribeiro, R. B. D.; Lisboa, L. S. S.; Dias, C. T. D. S.; Oliveira, A. H. M.; Araújo, E. J. G. D.; Andrade, D. F. C. D.; Martorano, L. G. Imprecision in Yield Estimates Using Timber Volume in Forest Management Plans in the Amazon. Preprints 2024, 2024071564. https://doi.org/10.20944/preprints202407.1564.v1
Silva Ribeiro, R. B. D.; Lisboa, L. S. S.; Dias, C. T. D. S.; Oliveira, A. H. M.; Araújo, E. J. G. D.; Andrade, D. F. C. D.; Martorano, L. G. Imprecision in Yield Estimates Using Timber Volume in Forest Management Plans in the Amazon. Preprints2024, 2024071564. https://doi.org/10.20944/preprints202407.1564.v1
APA Style
Silva Ribeiro, R. B. D., Lisboa, L. S. S., Dias, C. T. D. S., Oliveira, A. H. M., Araújo, E. J. G. D., Andrade, D. F. C. D., & Martorano, L. G. (2024). Imprecision in Yield Estimates Using Timber Volume in Forest Management Plans in the Amazon. Preprints. https://doi.org/10.20944/preprints202407.1564.v1
Chicago/Turabian Style
Silva Ribeiro, R. B. D., Dárlison Fernandes Carvalho de Andrade and Lucieta Guerreiro Martorano. 2024 "Imprecision in Yield Estimates Using Timber Volume in Forest Management Plans in the Amazon" Preprints. https://doi.org/10.20944/preprints202407.1564.v1
Abstract
The yield of logging in a forest management area using only the volume variable is not sufficient to assess effective wood productivity. The objective was to evaluate production using different logging variables to point out possible divergences between what was planned and what was actually carried out, in order to indicate adjustments to annual operating plans (AOPs) in the Amazon. The database comes from a community forest management area in the Tapajós National Forest, con-sidering three sources: 100% inventory, AOP planning and the post-exploration report. The pro-duction yield considering the number of trees felled and the effective volume were compared with the AOP planning. The volume estimated by the generic equation was compared with the cubed volume and the commercial height variable was evaluated. Of the 6,267 trees selected, 5,090 trees were harvested (3.2 trees.ha-1), indicating a yield of 85.0% of the estimated volume. Of the 25 commercial species logged, the most representative were: Manilkara huberi, Vochysia maxima, Lec-ythis lurida, Couratari guianensis and Hymenaea courbaril. It can be concluded that the number of trees, cubed volume and commercial height are post-exploration yield response variables and not just volume, as is currently used in SFMPs.
Environmental and Earth Sciences, Environmental Science
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
