The influence of wood components and cellulose crystallinity on the thermal degradation behavior of different wood species has been investigated using thermogravimetry, chemical analysis and X-ray diffraction. Four wood samples, Pinus elliottii (PIE), Eucalyptus grandis (EUG), Mezilaurus itauba (ITA) and Dipteryx odorata (DIP) were used in this study. The results showed that higher extractives ...

Resin tapping is an activity designed to extract resin from trees, especially species of the genus Pinus. Current systems and collecting are well known, but further study needed make these more efficient profitable for producers. Therefore, this work aimed evaluate effect five during different collection periods on production growth trees a population Pinus elliottii var. planted in Itapetining...

Resin tapping is an activity that aims to extract resin from trees, and thus use this product industrially. The species most used for in Brazil Pinus elliottii var, elliottii. extracted basically composed of rosin turpentine, which are by the chemical industry. Although main processes currently well known, new systems must be tested, such as closed system compositions stimulating pastes. These ...

The fruit of woody plants is important as food for wildlife (Martin et al. 1951, Lay 1965). The relation of fruit production to southern forest stand conditions has been explored in only a few studies. Fruit production is greater in forest clearings than in closed forest stands (Lay 1966, Elalls and Alcaniz 1968). In Georgia slash pine (Pinus elliottii) plantations, fruit yields of shrubs are g...

Land use and fire exclusion have influenced ecosystems worldwide, resulting in alternative ecosystem states. Here, I provide two examples from the southeastern United States of fire-dependent open pine pine-oak forest loss examine dynamics replacement forests, given continued long-term declines foundation longleaf (Pinus palustris) shortleaf echinata) pines recent increases commercial loblolly ...