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Official Journal of the Japan Wood Research Society

Table 2 List of the variables (fixed effects) used in the SW-to-HW and the within-HW models (before model selection)

From: Tracing radioactive cesium in stem wood of three Japanese conifer species 3 years after the Fukushima Dai-ichi Nuclear Power Plant accident

VariableTypeExplanation
HWAContinuousHeartwood cross-sectional area of wood disk
HWCL-per-HWAContinuousHeartwood circumferential length per HWA of wood disk
CROWNCategoricalWhether a wood disk is located in the tree crown or not
D-from-TContinuousDistance from the treetop of wood disk
HWMCContinuousHeartwood moisture content of the tree
LARCHCategoricalUnmeasured species effect of larch (reference category is cedar)
SITE2CategoricalUnmeasured site effect of site 2 (reference category is site 1)
CYPRESS-SITE5CategoricalUnmeasured species and site effects of cypress and site 5 (reference category is site-1 cedar)
  1. SW sapwood, HW heartwood