Existe escasa información sobre el crecimiento y rendimiento de los árboles de la plantación de Eucalyptus globulus Labill en la hacienda Tunshi-ESPOCH en condiciones variables de fisiografía, propiedades edáficas y manejo; por esta razón se decidió evaluar su masa forestal. Se instalaron parcelas circulares de 12.62 m de radio a una intensidad de 5-6% ha-1. Mediante el muestreo sistemático no alineado para el levantamiento de información dasométrica y la excavación de tres calicatas rodal-1, aplicando el muestreo estratificado para las variables del sitio. La aplicación de estimadores estadísticos, determinó que a una altitud de 2755 msnm el volumen total promedio árbol-1 estimado de 2,32 m3 en comparación con el 0,25 m3 a una altitud de 2929 msnm. Se definieron dos áreas una de conservación y otra de aprovechamiento forestal. Existe asociaciones significativas entre el volumen total unitario de E. globulus frente a la altitud, al contenido de materia orgánica, a la capacidad de intercambio catiónico a nivel superficial y el nivel de boro a nivel subyacente. Generándose una estrategia de manejo para cada área delimitada.

This present study gives an estimation of the time and efficiency in the transformation of pine logs into boards for the manufacturing of pallets in the industry, Haro Madera. Here, the percentage of the wood used and the percentage of sawdust were determined. This was with a yield of 34.936% in the processing of the logs, 43.29% into square posts, and 15.08% in the direct transformation of the logs into boards. In order to determine the factors that affect the production of pine lumber, the wood was classified by its length, diameter, and shape where it was possible to determine its influence in the production into boards. This, therefore, proves that the qualitative factors are influential in the elaboration of the boards to construct pallets, in terms of time. Also, it was possible to determine that for the manufacture of an American type pallet, it took 10.24 minutes, while the European type pallet took 13.9 minutes. To determine the output per machine, a sampling was used. Here, specific observations were made, dividing working time and non-working time. Wood utilization percentage was low, the production line must be improved, and the logs from different plantations should be classified according to their diameter and shape.

This research aims to evaluate the effect of different intensities of formation pruning in the initial development of the Melina (Gmelina arborea Roxb.) in the Pedro Vicente Maldonado canton located in the Pichincha Province. An established Melina (beech wood) plantation, with three different intensities of pruning were used; the experimental design utilized 3 pruning treatments on randomized complete blocks and the control plot, 4 repetitions with a total of 16 experimental units, the investigation began at 3 months after planting and finished when they were 8 months old. The results being that the best diameter was obtained with the pruning of 60% of the tree, the height didn't have any significant statistical difference between treatments, the best straightness was obtained with 50% and 70% pruning, the highest number of branches pruned were pruned 70%, the control tree has the biggest number of broken off branches. The conclusion being that the best increments in diameters were obtained by the control plot; however, this pruning treatment is rejected because the purpose is to obtain wood free of knots. Without taking into consideration the control plot, the best diameters were obtained by pruning 60%, but the form of the tree trunk presents a slight curve in relationship to the intensity of pruning 50% and 70%, where the trees are straighter but with smaller diameters. The formation pruning doesn't influence the height growth of the plant, but it is positive in the increment of the diameter and the straightness. The lack of pruning in the Gmelina causes the breaking off of branches causing damage to the trunk of the tree.