Use of time-domain reflectometry to measure and monitor moisture in wet-stored pine and hardwood logs under reduced water treatments

Wet storage of tree length logs is often used to maintain a steady supply to manufacturers and preserve wood quality by preventing fungal degradation. Water is continuously applied to the logs using large amounts of an increasingly scarce and important resource. A reduction in water use is desired for environmental and economic reasons. In this study, time-domain reflectometry (TDR) was explored as an option to measure moisture content of logs. Species specific calibrations were developed to predict moisture content and four studies were completed that observed response of logs under a 30% reduction in water application rates. Two pine studies and two hardwood studies were completed with positive results for reducing water use. The results from all four manipulative studies indicate that a 30% reduction in water is possible with little to no affect on wood quality.