SciELO - Scientific Electronic Library Online

 
vol.23 issue2RETENTION AND PENETRATION OF CCA IN WOOD OF FIRST AND SECOND ROTATION OF Eucalyptus urophylla S.T. BlakeWOOD ANATOMY OF Phyllanthus sellowianus Müll. Arg. (PHYLLANTHACEAE) author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand

Journal

Article

Indicators

Related links

Share


Ciência Florestal

Print version ISSN 0103-9954On-line version ISSN 1980-5098

Abstract

SANTOS, Rosimeire Cavalcante dos et al. ENERGY POTENTIAL OF SPECIES FROM FOREST MANAGEMENT PLAN FOR THE RIO GRANDE DO NORTE STATE. Ciênc. Florest. [online]. 2013, vol.23, n.2, pp.491-502. ISSN 0103-9954.  http://dx.doi.org/10.5902/198050989293.

The objective was to evaluate the energy potential of woods of species under forest management plan from Seridó region in the Rio Grande do Norte state. It was used the wood species Jurema Preta, Pereiro, Marmeleiro, Catingueira, Mororó, Imburana, Jurema Branca and Mofumbo, at 20 years old, originated from the Dominga´s farm in the Caicó/RN municipality. The density, the content of volatiles, the ash and fixed carbon, calorific value, elemental composition and carbon/nitrogen (C/N) and carbon/ hydrogen (C/H) analysis were carried out in the wood. Additionally, the amount of energy produced in kW.h.m-3 and kW.h.ha-1 for all species was estimated. The experiment was conducted in a completely randomized design with eight treatments (species), four replicates (sample trees), adding up to 32 sampling units. There were significant differences, at 5% significance between treatments for all variables, except for hydrogen percentage and C/H ratio. It was concluded that Mororó´s wood shows high energy potential, and along with Jurema Preta, presents higher energy generation per m3, and provides greater economy for the same productivity. The energy potential Jurema Preta wood´s stands out among the species. Pereiro´s wood stands for energy production per hectare. Marmeleiro and Jurema Branca´s woods are indicated as direct burning potential and Imburana´s wood is not recommended for power generation.

Keywords : energy potential; northeast semiarid; wood quality; energetic properties.

        · abstract in Portuguese     · text in Portuguese     · Portuguese ( pdf )