ASSESSING THE FEASIBILITY OF THE BDq METHOD FOR THE SUSTAINABLE MANAGEMENT OF THE CAATINGA

Abstract

The BDq method is based on the concept of a balanced forest, in which the current growth can be periodically removed while maintaining the initial diameter distribution of the forest. This study aimed to analyze the technical feasibility in the application of three cutting intensities and six scenarios in sustainably managed Caatinga vegetation. The study was carried out at the Fazendas Baixa da Oiticica, Rancho da Velha, and Tabuleiro de Dentro, located in the municipality of Upanema (state of Rio Grande do Norte), with an area of around 343 hectares. We established 11 plots of 20 × 20 m and measured all individuals with a circumference at breast height (CBH) ≥ 6 cm within these plots. The individuals were identified in the field, and the APG IV classification system was adopted to organize the list of scientific names and families. Three management alternatives were proposed, namely reducing 40% (Scenario 1), 50% (Scenario 2), and 60% (Scenario 3) of the basal area and the actual volume for the application of the BDq method. In total, 1,680 individuals distributed in 10 families, 18 species, 16 genera, and 7 diameter classes were inventoried. Considering rational, sustainable harvesting, and following the theoretical rules of dynamic processes, cuts may not be carried out in larger diameter class centers (22.45, 27.45, and 32.45 cm). Scenario 3 showed the most effective results, as it allows the harvesting of the highest number of individuals and provides a greater economic return.

Urban Solid Waste in Brazil: Concept, Characterization and Regulation

“…However, this does not solve the pollution problems generated by the waste, because it generates liquids and gases. [19] say that controlled landfill is considered an intermediate solution between the dump and the landfill. For it is an attempt to transform dumps into landfill, since these sites are built chimneys to release the gases and try to capture the leachate by pumping, returning it back on top of the pile of garbage; to reduce the contamination of groundwater.…”

“…Household waste, sweeping waste, commercial waste and, in some cases, rubble), that is, it is all the household and urban cleaning waste produced by the population [19].…”

“…These residues, from hospitalshospital waste -drugstores, medical and dental offices, clinical analysis laboratories, veterinary clinics, among other establishments that provide services like these. These are syringes, needles, dressings, and other materials that may present some type of contamination by disease-causing pathogens" [19].…”

Manejo florestal sustentado da caatinga: aspecto legal e técnico-científico

“…Dependendo das características da vegetação de Caatinga a ser manejada, e da finalidade do uso econômico da madeira, sugere-se o emprego do tipo de sistema de corte que proporcione menor impacto ambiental possível nas áreas de Caatinga submetidas ao manejo florestal. Fonte: (Brasil 2008, Cavalcanti et al 2009, Araújo e Silva 2010, Calixto-Júnior e Drumond 2011, Menezes et al 2012, Santos et al 2013, Lima-Júnior et al 2015, Brand 2017, Lucena et al 2018, Lucena et al 2019, Nascimento-Neto et al 2020.…”

Could Forage Palm and Stone Barrier Be as Effective as Native Vegetation in Controlling Runoff and Erosion in the Brazilian Semiarid Region?

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