Abstract
This work used the Growth-Oriented Logging model to determine species-specific forest management criteria according to the growth model. The objective of this work was to define specific forest management criteria for the species Manilkara huberi (Ducke) A. Chev., using a Dendrochronology study by high frequency densitometry. The study was carried out in a forest management area, in Central Amazonia. The studied species forms annual growth rings depending on the seasonal rainfall. The annual growth rings were defined by high frequency densitometry, measuring the density variations in the wood, from the marrow to the bark. With the time series of the annual growth ring thickness obtained, it was possible to determine the forest management criteria for the studied species. The minimum logging diameter (MLD) obtained was approximately 63.4 cm, and its cutting cycles were estimated at 47 years, with an age of 297 ± 13.8 years. The estimated volume, equivalent to MLD, is 6.97 m3. With the study of Dendrochronology, it was possible to define the criteria for the specific forest management of the studied species, making it possible to apply this technique to tropical species with the same characteristics.
Highlights
The increase in human population in developing countries, global climate change, and the conservation of tropical forests has become one of the most important ecological challenges of our time.The researches related to the sustainable forest management of natural forests, tropical forests, have been seeking to make available more appropriate techniques and protocols that satisfy the demands coming from producers and society, indicating that the treatments, for the management of tropical species, should be directed by species, environment or region, according to the rhythm of growth and recovery potential for new cutting cycles
The determination of a minimum logging diameter (MLD) for a species must obey to a substantiated technical study [2]
The study was developed in a Sustainable Forest Management area, in Central Amazonia, Brazil, delimited by coordinates 02°30'S 59°00'W and 03°00'S and 58°30'W
Summary
The increase in human population in developing countries, global climate change, and the conservation of tropical forests has become one of the most important ecological challenges of our time.The researches related to the sustainable forest management of natural forests, tropical forests, have been seeking to make available more appropriate techniques and protocols that satisfy the demands coming from producers and society, indicating that the treatments, for the management of tropical species, should be directed by species, environment or region, according to the rhythm of growth and recovery potential for new cutting cycles. The Brazilian legislation establishes technical parameters to be adopted in the elaboration, presentation, technical evaluation, and execution of a Sustainable Forest Management Plan with timber purposes, to native forests and their forms of succession in the Amazon biome. According to this legislation is established the minimum logging diameter (MLD), which is 50 cm for all species, for which there is not yet a specific MLD. The determination of a MLD for a species must obey to a substantiated technical study [2]
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