The objective of this work was to evaluate the floristic and phytosociological composition of a Cerrado lato sensu fragment. A census was carried out in the study area, of 6.7 ha, with inclusion limit of 15 cm of circumference at 1.30 m above ground level. We registered 15,434 individuals, from 78 species, 72 genera and 33 families. Density, dominance and cover value were analyzed, with a total density of 2,303...
The production of charcoal deriving from native forests has been putting pressure on different biomes, mainly the Cerrado one, where the vegetation has been devastated to supply charcoal mining companies focused on Brazilian steel plants. Forest replenishment is an environmental management tool used to reduce pressure on natural resources, through reforestation. Data on the production of charcoal allow stipulat...
The quantification of fuel material in the Cerrado area is limited by the difficulty in obtaining data, the high costs and the high time spent in the field. In search of alternatives that facilitate the data acquisition, the use of RGB sensors stands out being able to be a useful and effective tool in quantifying the combustible material. In this context, the objective of this work was to evaluate the feasibili...
O objetivo foi identificar a composição florística, destacar as espécies raras e/ou em risco de extinção, classificar em grupos ecológicos e avaliar a estrutura quanto às classes diamétricas e hipsométricas num fragmento de Cerrado de Cariri, Tocantins. Foram mensurados 2.654 indivíduos, distribuídos em 34 famílias, 73 gêneros e 81 espécies. A classe diamétrica predominante dos indivíduos foi 2,5-4,3 cm e hipso...
Para o dimensionamento da estrutura hidráulicas do Brasil, é necessário a obtenção de dados de chuvas intensas de curta duração a partir de séries históricas de chuva diária. Esta situação recorrente pode ser atendida pela metodologia de desagregação de chuvas. Objetivou-se neste trabalho determinar constantes de desagregação de chuvas intensas para o Estado do Tocantins e proceder a comparação destas constante...
Remote sensing techniques for vegetation monitoring has been more used and improved. These techniques are good alternative to be used as as basis for forest inventories. The present study aims to estimate forest variables using multispectral images associated with data from field survey. The studied area was a tropical rain forest of approximately 44,728.5 ha. A forest inventory 100% was carried out providing t...
Tocantins is one of the Brazilian states most affected by forest fires, which are the largest remnants of the country's Cerrado. Thus, this study aims to evaluate the Fire Occurrence Records (ROIs) in the state of Tocantins between 2003 and 2015 through the information provided by INPE and SisFogo. The work was divided into three stages: the first consists in the acquisition the images of the satellite AQUA and...
Delonix regia é uma essência florestal utilizada no reflorestamento e na arborização de praças, parques e ruas de várias cidades do Brasil. Este estudo teve como objetivo avaliar diferentes composições de substratos para a produção de mudas de flamboyant Delonix regia. O experimento foi conduzido no Viveiro Florestal da UFT. O delineamento experimental adotado foi o inteiramente casualizado, com dez tratamentos...
Objetivou-se com o presente trabalho realizar a análise da dinâmica do uso e cobertura da terra referentes aos anos de 1990, 2000, 2007 e 2015 de nove municípios da região Sul do estado do Tocantins, utilizando as técnicas de sensoriamento remoto. Os dados de 1990, 2000 e 2007 foram provenientes da base de dados da Secretaria de Planejamento e Orçamento do estado do Tocantins, e os dados de 2015 foram obtidos p...
The importance of permanent preservation areas (PPA) is mainly associated to their environmental role to maintain, preserve, and conserve water resources and ecosystems within a basin. The objective of this study was to delimitate and quantify the areas of PPA along watercourses as well as anthropized areas within PPAs boundaries, in the Formoso river basin, state of Tocantins, Brazil. PPAs area was delimited c...