Allometric equations for estimating root systems of mizunara oak in secondary forests

This study aims to estimate root system characteristics (biomass, length, area, and volume) of mizunara oak (Quercus crispula Blume) in secondary forests through allometric equations. Trees were sampled in the Sado University Forest, Japan, where both aboveground and belowground data were collected. Roots were categorized into diameter classes and analyzed for regression relationships with tree variables such as diameter at breast height (DBH). The equations developed are intended to estimate root systems and carbon storage from easily measurable tree attributes. The study highlights the significance of belowground biomass in forest carbon assessment and demonstrates spatial distribution using GIS.