Behavior of the diameter in the base of the marabú, in inventoried areass for energy uses
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Abstract
The use of biomass for the production of electricity and charcoal is essential in the transition to a more sustainable energy model, as it reduces dependence on fossil fuels and decreases greenhouse gas emissions. The study evaluated the behavior of the diameter at the base of marabou (Dychrostachys cinerea) in areas inventoried for energy purposes in the municipality of "Carlos Manuel de Céspedes," Camagüey, Cuba. Accurate data on its diameter structure are required to optimize the use of this biomass for the production of electricity and charcoal. The objective was to analyze the diameter at the base of marabou by categories (fine, medium, coarse) and diameter ranges, to define its energy use and select appropriate technologies. Ninety sampling plots (25 m² each) were established, distributed in three locations, where the diameter was measured and the aboveground biomass was calculated using mathematical models. The results showed that fine marabou (2.36 cm average diameter) is suitable for electrical energy, while coarse marabou (9.39 cm) is ideal for producing high-quality charcoal. More than 54% of the bushes were identified as meeting the established diameter ranges, although there is variability due to natural growth. The conclusions highlight the importance of these data for selecting felling technologies and optimizing energy use, adjusting diameter ranges according to objectives and available technologies. This study contributes to sustainable planning for the use of marabou as an energy resource.
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