The strategic importance of forest resources, both at the national and global level, as well as the scarcity of reliable qualitative and quantitative information about Brazilian forests are among the motivations that led to the implementation of a new national forest inventory in Brazil (IFN-BR). Beyond traditional field survey through clustered sampling, the IFN-BR incorporates Landscape Sample Units (LSU) as ...
The objective of this paper was to evaluate different transect lengths for determination of coarse woody debris on the ground. The data came from 10-meter-long transects, measured during the National Forest Inventory methodology test in the Amazon, Cerrado and Caatinga, and the forest inventory in Santa Catarina State, representing Araucaria Forest and Deciduous Forest. The comparison among the coefficient of v...
The main objective of this research was to analyze the effects of age, site, density and sociologic position on the height-diameter relationship The data carne from the measurement of height and diameter of trees in 137 plots of Pinus taeda, with area of 600 m2, scatered in the State of Parana, Brazil, with ages ranging from 4 to 27 years old. The comparison among regression lines was done through the analysis ...
Brazil first began concerning about producing pine clearwood 30 years ago, even though it has been quite a common activity in other countries for several years. The wood originated from the first pruned pine plantations began to be harvested in recent years. However, the procedures used in the pruning operation vary from region to region, as well as the thinning regime and quality of the site, which directly af...
The assessment of the quality of clearwood produced in pruned plantations of pine is necessary, especially to set price and know the utilization potential. The pruned log index (PLI), index used in Chile and New Zealand to characterize the quality of the logs, is a function of measurable variables of each log as diameter with defects, diameter 1.3 m from the largest end and the ratio between the cylinder volume...