Resumo: O agronegócio de flores e plantas ornamentais está se consolidando no Brasil. O perfil do produtor brasileiro é de pequeno porte e caracterizado como agricultura familiar. A produção de flores e plantas ornamentais tem um papel importante na economia, gerando empregos e distribuindo melhor a renda. No Distrito Federal a produção de floricultura é realizada pelo pequeno produtor e por sua família, tornando-a assim agricultura familiar. Esta pesquisa tem caráter exploratório e descritivo e foi realizada com o auxílio de um questionário misto para descrever e avaliar o perfil socioeconômico do produtor de flores e plantas ornamentais do Distrito Federal. A análise dos dados foi realizada pela análise estatística bidimensional para testar e validar os resultados obtidos. Os resultados em relação ao sexo dos produtores de flores e plantas ornamentais foram: homens (24,34%) com pelo menos 2 membros da família (16,98%), e para a produção de mudas, as mulheres (16,98%), com mais de 2 membros da família (13,21%). O estado civil dos produtores de flores divide-se em casados (58,82%) e solteiros (23,33%). Concluiu-se que o perfil socioeconômico do produtor de flores e plantas ornamentais é de caráter misto, agricultura familiar, sinais de amadorismo e não possui renda exclusivamente advinda da produção.

Abstract: The flower and ornamental plants agribusiness in Brazil are in the consolidating stage. The profile of the Brazilian small producer is mainly characterized as family farming. The production of flowers and ornamental plants plays an important role in the economy, generating jobs and distributing income better. In the Federal District, small producers and his family carry out the production, thus making it family farming. This research proposes an exploratory and descriptive analysis by a mixed questionnaire to evaluate Federal District flowers and ornamental plants producers` socioeconomic profile. The data analysis was evaluated using a two-dimensional statistical analysis to test and validate all achieved results. The result about the gender of the producers of flowers and ornamental plants were men (24.34%) with at least two family members (16.98%), and for the production of seedlings, women (16.98%), with more than two family members (13.21%). The marital status of flower producers is married (58.82%) and single (23.33%). It was concluded that the producer of flowers and ornamental plants' socioeconomic profile is mixed, family farming, signs of amateurism, and does not have income exclusively from production.

ABSTRACT Forest concessions were implemented in Brazil as a way to increase the areas of sustainable forest management. Little is known about the financial viability of forest management in Brazil, which is one of its main bottlenecks. In this context, the aim of the study was to evaluate the financial viability of an investment in forest concession. In order to do so, the Net Present Value (NPV), Periodic Equivalent Benefit (PEB), Internal Rate of Return (IRR) and Real Options Analysis (ROA) were adopted, and the option of abandonment was also analyzed. As a variable for ROA analysis, the productivity (m³.ha-1) at the first years of forest concession under study was adopted. The NPV of the investment corresponds to US$ 8.04.m-³, the PEB was US$ 0.52.m-³.year-1 and the IRR, 20.75%. In order to be considered feasible, the forest concession must have a minimum productivity of 17.75 m³.ha-1. Of the 861 managerial decisions, the option to proceed with the investment was adopted in 237 nodes (27.53%), and the decision to abandon was exercised in 624 nodes (72.47%). This is a worrying result for the concessionaire companies and also for the management entities of the forest concessions, mainly when comparing with the concessions reality, where abandonment is an option that has been performed. It can be concluded that the high probability of abandoning highlights a fragility of forest concessions. ROA proved to be a good methodology to complement traditional methods of financial analysis, presenting satisfactory results in aiding decision-making.

RESUMO A maioria dos estudos que analisa o comportamento da competição arbórea é voltada para plantios homogêneos e equiâneos. Nota-se, portanto, uma carência de informações deste tipo em florestas naturais de elevada biodiversidade. Objetivou-se com este trabalho avaliar a competição em um fragmento de Floresta Estacional Semidecidual, por grupo ecológico, grupos demandantes e não demandantes de luz para todas as espécies amostradas no fragmento. Foram empregados índices de competição independentes da distância e semidependentes da distância. O índice BAL (basal area in larger trees), sem raio de influência, obteve o melhor desempenho para analisar como a competição afeta o crescimento dos indivíduos no fragmento estudado. Concluiu-se que avaliar a competição por grupo ecológico é mais eficaz, e os resultados confirmam que a competição florestal não pode ser determinada apenas pela aplicação de um raio fixo de influência dos vizinhos em relação à árvore-objeto.

ABSTRACT Most of the studies that analyze the behavior of tree competition approach even-aged plantations. Therefore, it is possible to notice a lack of this kind of information regarding natural forests with high biodiversity. The objective of this study was to evaluate the competition in a fragment of Semi-Deciduous Seasonal Forest, according to the ecologic group, light depending and non-depending groups for all species sampled in the fragment. The Distance Independent Competition Index and Semi-Distance Independent Competition Index were applied in this study. The basal area in larger trees index, without the radius of influence, was the most efficient to analyze how the competition affects the growth of the specimens in the studied fragment. It was stated that evaluating the competition per ecologic group is more efficient. The results confirm that the forest competition cannot be determined by considering only a fixed radius of influence that embraces the neighbors and the subject tree.