Two models were developed to evaluate total volume under and over-bark of Blackwood (Acacia melanoxylon R. Br.) stand trees. By variance analysis regarding volume with and without bark it was confirmed that trees age is responsible for 48 to 50% of its volumetric behaviour. Considered the averages of those variables and regarding the three homogeneous groups of the studied sites, a single model...

Introduction Koa (Acacia koa) is currently the most important commercialized hardwood in Hawai'r's forests. A sustainable supply of koa will depend on reforestation with the best adapted seed sources and perhaps with vegetatively propagated cultivars having unique traits. At present, koa forests are in a serious state of decline, and improvement appears warranted if sustainable supply is to be ...

Acacia melanoxylon es una especie exótica e invasora en Chile, de difícil control mediante la corta individuos y aplicación productos químicos. Ello ha dificultado labores esta restauración ecológica, generando necesidad investigar métodos alternativos, eficaces inocuos con el medioambiente. El objetivo del estudio fue evaluar grado degradación in vitro madera A. por los hongos Trametes...

An IR-spectroscopic study of the interaction collagen with blackwood acacia (acacia melanoxylon) tannins and its use for tanning filling semi-finished leather products in production elastic leathers shoe uppers was conducted. The analysis IR spectra chrome dermis extract can indicate intermolecular ionic bonds formation a hydrogen dense network building-up amino groups phenolic carbonyl plant t...

La Concesión Minera obtuvo su título como tal el 01 de abril del año 2010, y comprende un área total 176,00 ha., con intervención 39,57 se encuentra ubicada en la parroquia San José Quichinche, cantón Otavalo, provincia Imbabura; cobertura forestal dentro esta árboles plantados plantaciones forestales tres especies introducidas una nativa. El objetivo este estudio fue evaluar estructura diversi...