Investigating Storage time to minimize end splitting in Eucalyptus nitens logs

Authors

  • Carlos Rozas
  • Vasquez
  • Patrcia Vega
  • Arijit Sinha Oregon State University
  • Claudio Montera

Abstract

The selection of Eucalyptus nitens (H. Deane & Maiden) logs for higher value-added products is complex due to the presence of radial and longitudinal splits as a result of growth stresses, which reduces their utilization in solid products. The objective of this research was to determine the time limit for the utilization of the logs to increase their use in higher value-added products. Forty trees were used, with two 4 m logs from diameter to breast height obtained per tree. The radius (rt), radial, and longitudinal splits (Rlong) were measured at regular time intervals between turning and 28 da of storage. The relative splitting index was determined as (RMax/rt) per log. From the results obtained, it is evident that there were significant differences in RMax with log height and storage time. The RMax/rt indicator showed significant differences with storage time, showing a better fit than RMax. The linear model that showed the relationship between the external openings of the splits and the longitudinal split had a coefficient of determination (r2) of 0.77. It is concluded that logs should be used before 7 da of storage. Similarly, to increase log yield, radial splitting should be less than or equal to 75% of the radius and logs should be transported in multiple lengths and at a log diameter greater than or equal to 40 cm.

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Published

2024-01-10

Issue

Vol. 55 No. 3/4 (2023): Wood and Fiber Science

Section

Research Contributions

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